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Thiosemicarbazide Hydrochloride

    • Product Name Thiosemicarbazide Hydrochloride
    • Alias Thiosemicarbazide monohydrochloride
    • Einecs 222-326-7
    • Mininmum Order 1 g
    • Factory Site Tengfei Creation Center,55 Jiangjun Avenue, Jiangning District,Nanjing
    • Price Inquiry admin@sinochem-nanjing.com
    • Manufacturer Sinochem Nanjing Corporation
    • CONTACT NOW
    VTB
    Specifications

    HS Code

    219554

    Chemicalname Thiosemicarbazide Hydrochloride
    Casnumber 1678-18-0
    Molecularformula CH5N3S·HCl
    Molecularweight 130.60 g/mol
    Appearance White to off-white crystalline powder
    Meltingpoint 173-176°C (dec.)
    Solubility Soluble in water
    Storagetemperature Store at room temperature
    Purity Typically ≥98%
    Hscode 29309099
    Odor Odorless
    Phvalue Approximately 5.0-6.5 (1% in water)
    Synonyms Hydrochloride of thiosemicarbazide
    Boilingpoint Decomposes before boiling
    Stability Stable under recommended conditions

    As an accredited Thiosemicarbazide Hydrochloride factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.

    Packing & Storage
    Packing The packaging is a tightly sealed 100g amber glass bottle, labeled "Thiosemicarbazide Hydrochloride, for laboratory use only," with hazard warnings.
    Shipping Thiosemicarbazide Hydrochloride is shipped in tightly sealed containers, protected from moisture and direct sunlight. It is packaged according to standard chemical safety regulations and labeled appropriately. During transit, it requires cool, dry conditions and is handled as a potentially hazardous material, compliant with applicable transport and safety guidelines.
    Storage **Thiosemicarbazide hydrochloride** should be stored in a tightly sealed container, in a cool, dry, and well-ventilated area. Protect it from moisture, direct sunlight, and sources of heat or ignition. Store separately from incompatible substances such as strong oxidizers or acids. Proper labeling and secondary containment are recommended to prevent spills and contamination.
    Application of Thiosemicarbazide Hydrochloride

    Applications of Thiosemicarbazide Hydrochloride in Industrial Manufacturing

    As a specialized manufacturer, we supply thiosemicarbazide hydrochloride for integration in regulated industrial sectors. Our expertise ensures every batch meets the stringent demands of these technical applications, where stringent compliance, precise formulation, and process reliability are critical for downstream product performance and safety.

    1. Analytical Reagent Manufacturing for Metal Ion Detection

    Industrial-scale laboratories and reagent formulators employ thiosemicarbazide hydrochloride as a selective analytical agent for heavy metal ion detection, particularly in photometric and gravimetric analysis protocols. Its use remains essential in technical-grade test kits, where high specificity toward certain ion groups, such as palladium or osmium, is required. The compound enters formulations at precisely controlled concentrations, ensuring reliable color development and reaction endpoints during end-user quantitative or qualitative analysis.

    Industry compliance standards

    • ISO 17025 (General requirements for the competence of testing and calibration laboratories)
    • REACH Regulation (EC) No. 1907/2006 for chemical substances
    • Good Laboratory Practice (GLP) principles as per OECD guidelines
    • National metrological regulations for analytical reagents

    Typical usage ratio

    • 0.05–0.5 wt% in metal complexation buffer solutions; concentration adjusted according to detection sensitivity and matrix effects

    Downstream process integration

    • Dissolution in aqueous or mixed solvent solutions during buffer or reagent preparation phase; filtration and QC analysis prior to kit filling and packaging

    Final product types

    • Photometric metal ion detection kits
    • Palladium and osmium selective test solutions
    • Gravimetric determination reagents

    2. Organic Intermediate Synthesis for Pharmaceutical APIs

    This material provides a key precursor function in multi-step heterocyclic synthesis workflows for several active pharmaceutical ingredients (APIs), particularly those requiring thiosemicarbazone or thiazole frameworks. Manufacturers employ it in controlled fine chemical synthesis lines, leveraging strict batch tracking and contamination control, as trace-level impurities can compromise downstream reaction yield and drug safety profiles. The usage range depends on targeted molecular scales and yield optimization strategies established during process validation.

    Industry compliance standards

    • ICH Q7 Good Manufacturing Practice for Active Pharmaceutical Ingredients
    • Pharmacopeias (USP, EP, JP) for API intermediates
    • FDA 21 CFR Part 211 for drug substance manufacturing controls
    • Hazardous chemicals registration (as per national drug ingredient regulations)

    Typical usage ratio

    • 0.1–1.2 molar equivalents in heterocycle-forming steps, with charge ratio tailored during route development and yield studies

    Downstream process integration

    • Direct charging to batch reactors during alkylation, condensation, or cyclization; in-line monitoring of residuals post-reaction prior to intermediate API isolation

    Final product types

    • Pharmaceutical thiosemicarbazone intermediates
    • Antimicrobial and antiviral heterocyclic APIs
    • Advanced pharmaceutical building blocks

    3. Photo Fixer Additive in Industrial Imaging Chemicals

    Factories producing legacy black-and-white photographic processing chemicals for microfilm, x-ray, or archival purposes incorporate thiosemicarbazide hydrochloride into specialty fixer baths. Its role is to scavenge trace oxidizers and stabilize final silver images, especially in extended archival-grade image storage formats. Production relies on accurate dosing, homogeneity verification, and regular in-process QC to avoid negative impacts on image permanence or fixer bath exhaustion rates.

    Industry compliance standards

    • ISO 18901 (Imaging materials – Processed silver-gelatin type black-and-white films and papers – Storage methods and handling)
    • ANSI/NAPM IT9.1-1992 (Archival storage of processed photographic films)
    • Chemical safety sheets per OSHA Hazard Communication Standard (29 CFR 1910.1200)

    Typical usage ratio

    • 0.02–0.25 g/L in final fixer solutions, optimized based on bath capacity and desired silver halide scavenging limits

    Downstream process integration

    • Uniform mixing with ammonium thiosulfate and buffering agents post-dispersion; monitored for solution stability and clarification before bottling into process chemical canisters

    Final product types

    • Industrial black-and-white film fixer concentrates
    • Archival photographic stabilization components
    • X-ray imaging bath additives

    4. Auxiliary Agent in Specialty Electroplating Baths

    Electroplating chemical manufacturers use thiosemicarbazide hydrochloride in selective plating bath formulations aimed at controlling deposition rates, grain size, or metal stress characteristics, especially in precious metal (e.g., gold, palladium) and fine electronic connector coatings. Strict bath composition and analytical monitoring are required to comply with demanding uniformity and minimal defect thresholds. The compound’s dosage is finely tuned to plating run time, metal salt concentrations, and the specific metal to be deposited.

    Industry compliance standards

    • IEC 62321 (Determination of certain substances in electrotechnical products, especially RoHS compliance)
    • ASTM B488 (Electrodeposited coatings of gold for engineering uses)
    • ISO 4527 (Electroplated coatings of gold and gold alloys on electronic and electrical components)
    • Local workplace chemical safety regulations

    Typical usage ratio

    • 0.01–0.15 g/L in precious metal electroplating baths; precise level set by process trial plating and final product surface inspection

    Downstream process integration

    • Introduction with bath make-up chemicals in the initial mixing phase; monitored for bath exhaustion and replenished as required over plating cycles

    Final product types

    • Palladium and gold electroplated connectors
    • Electronic contacts with fine grain deposit
    • Plated jewelry components

    5. Intermediate in Agricultural Chemical Synthesis

    Specialty agrochemical producers use thiosemicarbazide hydrochloride for controlled synthesis of certain organosulfur intermediate structures, forming part of crop protection agents or plant growth regulator actives. Batch protocols prioritize precise stoichiometric addition and avoidance of excess unreacted material that could lead to phytotoxicity or environmental burden. During process validation, usage levels are defined based on the kinetic profile of target reactions and targeted environmental residue limits for final formulations.

    Industry compliance standards

    • FAO/WHO specifications for pesticide active ingredients
    • OECD Guidelines for the Testing of Chemicals (Environmental Fate & Behavior)
    • ISO 9001:2015 for agricultural chemical manufacturing
    • National agrochemical registration documentation requirements

    Typical usage ratio

    • 0.08–0.8 molar equivalents in intermediate formation or cyclization steps; range adjusted after field residue analysis and regulatory review

    Downstream process integration

    • Applied during main batch reaction sequences for creation of sulfur-containing nitrogen heterocycles; monitored by HPLC or GC-MS prior to downstream derivatization or formulation blending

    Final product types

    • Precursor intermediates for fungicidal actives
    • Plant growth regulator raw materials
    • Sulfur-nitrogen heterocycle agrochemical bases
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    Certification & Compliance
    More Introduction

    Thiosemicarbazide Hydrochloride: Reliable Quality Direct from Our Workshop

    Genuine Craftsmanship Backs Up Every Batch

    Over years of chemical production, direct handling of thiosemicarbazide hydrochloride has taught us what works and what doesn’t. We watch the raw materials, not just the process flow charts. Our teams monitor purity at each key step and don’t stop with basic checks. Customers ask about transparency—how do we keep consistency from one drum to the next, even across years? The answer starts in our own procurement. Every incoming bag of starting material goes through full traceability checks before anything hits the synthesis floor.

    Granulation and reaction environments can swing results wildly. Operators on our lines have seen how temperature and moisture change yield, dusting, and even reactivity during downstream usages. Each reactor load means hands-on responsibility. Small differences in process steps often show up as big variations in solubility or color. Only by controlling those details batch by batch can we claim real consistency.

    From a practical perspective, this isn’t just about meeting the assay numbers. High-purity thiosemicarbazide hydrochloride typically presents a white or off-white crystalline powder form. Minute variation here signals to us whether the filtration and drying hit the mark. Experience tells the difference—off-quality runs often show faint color or unusual odor profiles, which are promptly traced and adjusted at their source.

    Product Variants and Model Approach

    Markets don’t want theory; they want clear models suited for direct application. We manufacture several standardized models of thiosemicarbazide hydrochloride. The most common specifications in our production lines run at assay values above 99%, low chloride levels, and strict moisture control under 0.5%. Particle size remains tightly managed since larger particles can resist dissolution while too fine a grade becomes prone to caking and airborne losses.

    Refining the particle form isn’t only about looks. Overly fine powders behave badly in tablet compounding, whereas too coarse a cut slows down chemical reactions—especially where this product gets used for synthesis intermediates in pharma, dye, or analytical lab routines. Our model approach balances processing efficiency and user safety. Every new batch is screened to eliminate extraneous particulates at the micron level, and the inspection doesn't sign off unless batch records confirm both chemical and physical conformity.

    Understanding Usage in Real-World Conditions

    Thiosemicarbazide hydrochloride bridges several industries. In the lab, analysts rely on its reliable behavior for detecting metal ions—especially copper and silver, where color reactions provide firm readouts. Years of shipping directly to academic and industrial research clients taught us that stability is the concern laboratoires care about. We tune every lot for maximum shelf life, using both moisture-proof packaging and internal desiccant controls before sealing. Direct feedback from researchers drives our approach; if a batch trends even slightly off standard, sample returns and full inquiry follow.

    Dye manufacturers see things differently. They focus on how batch-to-batch purity supports predictable dye yields and reduces off-shade risk in large runs. Their main headaches come from contaminants, either from incomplete reaction or poorly cleaned equipment. Over time, we’ve focused on stricter line transitions and cleaning protocols between batches. That reduces unwanted carryover. While dye users may worry less about small changes in hydration, they care about performance in mass production, so we deliver with those needs in mind.

    In pharmaceutical intermediate manufacturing, thiosemicarbazide hydrochloride can’t afford surprises. Especially sensitive syntheses react strongly to trace metal residues or residual organic byproducts. Our QA teams have chased down contaminant profiles to the root—running comparative analyses using ICP-MS, LC, and other techniques. Fixes to equipment, not just procedures, have often been the answer. Auditors sometimes walk our floor; they appreciate that production transparency, and regulations don’t require us to hide behind anonymous batch codes. We take accountability for each output, and that shows up in customer loyalty over time.

    How It Stands Apart from Other Chemical Variants

    Direct synthesis and purification of thiosemicarbazide hydrochloride differ significantly from other close relatives like thiosemicarbazide or other halide-salt forms. Hydrochloride salts boast greater solubility and often cleaner color reactions. This translates to smoother analytical results and easier clean-up in endpoint applications. Blends or alternative salt forms can introduce unpredictable performances, especially in fine chemical syntheses.

    Other thiosemicarbazide derivatives, especially those marketed as “universal” for all uses, often sacrifice specific properties. Uncoated or loose powders can absorb moisture from the air, leading to caking, clumping, or skewing analytical results. Some manufacturers focus on “off the shelf” generic blends; from firsthand experience, we’ve watched customers face delays and lost sample accuracy when switching from properly tailored hydrochloride forms to cut-rate generic versions. That lesson motivates our own R&D to continue refining precise control over particle treatment, packaging, and purity rather than chasing broader but less predictable blends.

    Long-Term Quality Control Strategies

    Most buyers overlook the labor behind reliable chemical supply. Buying from the original manufacturer removes guesswork. We shoulder both the upside and the corner cases. Whenever questions surface, advice flows direct from our technologists who prepared the batch, not outsourced call centers. This connection speeds up troubleshooting—real answers, not copy-paste suggestions.

    Quality control isn’t just compliance—it’s about business sustainability. Contamination from foreign matter, drifting moisture content, or off-grade batches pose cost sinks, not just customer risks. We take strict action on faulty sub-lots, and feedback isn’t filtered by third-party intermediaries. Operators and customer-facing chemists remain in ongoing communication. Regular investment in new detection technology at the analytical level isn’t a luxury; it’s a necessity for credible long-term supply. As greater industry scrutiny lands on chemical manufacturing, our experience demonstrates that well-documented workflows and openness about batch histories provide leverage—not just for auditing, but for real process improvement.

    Traceable batch histories aren’t compiled for regulatory show. They become essential whenever recalls or product complaints arise. Every shipment from our site links back to raw materials source, full synthesis documentation, quality records, and storage details. This level of control, long established under ISO practices, drove down error rates and customer complaints. Our people see the results first-hand: lower waste, reduced rework, measurable improvements in on-spec shipments.

    Solving Problems in Distribution and Handling

    Logistics matter just as much as chemistry. Some of the biggest risks emerge after drums leave our site. Moisture, repackaging, or temperature swings pose challenges, especially with sensitive products like thiosemicarbazide hydrochloride. We’ve learned to ship only in sealed units with clear tamper-evidence and integrated lot tracking right through to the recipient. Past issues—broken seals or poorly flagged partial shipments—taught us to take direct responsibility for freight management. We contract only with reliable carriers who pass internal audits; risks in transit never sit solely with the buyer.

    On reception, trained receivers can detect early warning signs—such as discoloration or abnormal odor. We encourage our clients to open new shipments in dry, clean conditions and to reach us for any concerns. By routinely gathering user feedback, our team regularly adapts shelf-life targets and packaging materials. Real-time adjustments—not just slow, annual product reviews—help us address shifting climate, global regulation, and even regional differences in storage capacity.

    Regulatory Adherence and Safety: Factory-Backed

    Regulations bring more than paperwork. They mean understanding why purity, labeling, and safety data matter at the bench, in the plant, and through the supply chain. Thiosemicarbazide hydrochloride falls under several regional, national, and international chemical controls. We agree with tighter chemical stewardship. Outdated practices—unlabeled containers, minimal hazard warnings—had no place in our workflow. The teams managing compliance work alongside our synthesis chemists, giving direct insight into how every formula and label upgrade improves usability and aligns with emerging standards.

    Hazard classifications center on skin contact, dust inhalation, and storage incompatibilities—common in the thiosemicarbazide family. Straightforward labeling and detailed Safety Data Sheets (SDS) get dispatched with every outgoing batch. In-house safety trainers work with both operations and logistics to reinforce best practice. Emergency response drills, regular PPE checks, and waste minimization protocols don’t just show up in reports; they actively guide every shift’s workflow. By staying current on international shipment and hazard marking requirements, we remove friction for overseas users repeating compliance checks at their own facilities.

    Environmental Responsibility: Beyond Compliance

    Production waste isn’t just a statistic on a spreadsheet. Operators see the environmental impact up close. Waste minimization begins at process control: tight reaction conditions reduce off-gas, and efficient filtration recovers usable fractions from filtrates and washes. Our internal targets for water and solvent recovery grew out of field reports on local compliance and feedback from regulatory agencies. We’ve tailored closed-loop recycling wherever possible to shrink waste output, and any residual material receives safe, tracked disposal.

    Newer batch runs focus on solvent alternatives and continuous reduction of packing waste. Source separation of hazardous versus benign waste streams reduces not only disposal costs but also risk at all stages. Over time, investing in safety upgrades and waste-capture infrastructure proved themselves in both compliance audits and overall cost reduction. Environmental stewardship looks different in the field than on corporate slides; actual hands-on measures produce measurable results in water, air, packaging, and soil at the production site.

    Continuous Improvement Driven By End-User Feedback

    Direct conversations with scientists, engineers, and procurement managers shaped our product improvement strategies more than focus groups. Questions from dye makers led us to reformulate drying steps; comments from pharmacological researchers steered packaging improvements and tighter moisture specifications. By taking user feedback as operational input rather than treating it as a service follow-up, our workshop teams keep refining both process and product.

    Open dialogue led to tangible product changes. Scientists showing us inconsistent solubility prompted new particle size sieving and removal steps. Requests from international researchers—worried about cross-border shipment regulations—triggered on-boarding of country-tailored documentation, eliminating customs clearance delays. The learning never stops; every issue flagged by a user gets treated as a case study and is traced back to source, dissected for root cause, then followed by process correction.

    We’ve come to see customer feedback as early warning—it alerts us to trends before issues escalate. That same data also signals market shifts or new demand fronts, shaping whether we invest in new synthesis routes or expand product lines.

    Supporting Advanced Research and Industrial Innovation

    Many research efforts and industrial processes depend on specialty chemicals that can’t afford wide tolerances. Thiosemicarbazide hydrochloride ranks as a foundation for redox detection, electron transfer studies, and several pharmaceutical syntheses. Our technical staff maintain ongoing contact with R&D clients to provide both batch-specific technical insight and hands-on troubleshooting tips. Where new application demands arise—higher sensitivity, unique particle sizes, bulk blending with fine reagents—we experiment in-house and field pilot samples directly, short-circuiting delays common in more bureaucratic operations.

    Innovation happens at the edges: process tweaks to reduce energy, alternate reagents for safety, formulation changes for shelf life. Collaboration with end users enables us to test and validate real-world improvements. This interaction drives the formulation of even more selective or application-specific thiosemicarbazide hydrochloride models. We treat every such project as mutual gain: the manufacturer's improvement drives the customer's bottom line and scientific progress.

    Direct Support, No Intermediaries

    Large procurement projects often run into roadblocks when the chemical supplier cannot answer product-specific questions directly. Our teams remain available for technical clarifications, batch traceability requests, and handling guidelines—no need for third parties to pass messages up a chain. On-site chemists responsible for each stage of production become reference points for troubleshooting; that level of accountability stands as a result of years spent focusing on direct service models. Our partners trust that every confirmation, every analytic certificate, and every statement reflects our own team's work, not relayed promises or resold assurances.

    Refusal to delegate responsibility to third parties gives our customers unique security, both in crisis and in routine operation. In the rare case of returns, responsibility, remedy, and replacement are handled directly between user and maker.

    Future Horizon for Thiosemicarbazide Hydrochloride

    Being a manufacturing enterprise, staying ahead of regulatory, technical, and market shifts isn’t just aspiration—it’s necessary for survival. We watch for advances in synthesis efficiency, formulation purity, and more sustainable production. Investments go towards cleaner reactors, digital monitoring, and continuous staff upskilling. Each year, new challenges shape the way we handle both material and relationship with the market.

    As specialty chemical markets tighten expectations—with buyers demanding traceability, responsibility, and measurable quality—our on-the-ground experience stands as the strongest foundation. Every drum, every shipment reflects years of practical expertise. By continuing to invest in both technical improvement and practical problem-solving, we sustain trust and grow with those who rely on thiosemicarbazide hydrochloride for their own innovation and progress.