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Stains-All

    • Product Name Stains-All
    • Alias stains_all
    • Einecs 210-217-5
    • 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

    374534

    Chemical Name 1-Ethyl-2-(3-(1-ethylnaphtho[1,2-d]thiazolin-2-ylidene)-2-methylpropenyl)naphtho[1,2-d]thiazolium bromide
    Common Name Stains-All
    Molecular Formula C30H27BrN2S2
    Molar Mass 559.58 g/mol
    Appearance Dark blue to purple solid
    Solubility Soluble in water and methanol
    Absorption Maximum 440 nm (blue chromophore)
    Usage Staining of acidic proteins, glycosaminoglycans, and nucleic acids
    Storage Conditions Store in a cool, dry place protected from light
    Hazard Classification Irritant; avoid inhalation, ingestion, and contact with skin or eyes

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

    Packing & Storage
    Packing Stains-All is packaged in a small amber glass bottle containing 25 grams, labeled with hazard warnings and chemical information for laboratory use.
    Shipping **Shipping for Stains-All:** Stains-All is shipped in tightly sealed, light-resistant containers to prevent degradation. It should be transported as a hazardous chemical, with appropriate labeling and documentation. Protect from moisture, heat, and direct sunlight. Follow all applicable regulations for chemical transport, including UN and DOT guidelines. Store upright and avoid physical damage during transit.
    Storage Stains-All should be stored in a tightly sealed container, protected from light to prevent degradation, ideally at 2–8°C (refrigerator temperature). Avoid exposure to moisture and strong oxidizing agents. The storage area should be well-ventilated, cool, and dry. Proper labeling and segregation from incompatible materials are essential. Always consult the Safety Data Sheet (SDS) for full storage guidelines.
    Application of Stains-All

    Applications of Stains-All in Industrial Manufacturing

    Stains-All finds targeted use in several advanced industrial sectors that require selective dyeing or detection of organic and inorganic molecules. Its unique dye characteristics serve both analytical and quality control purposes where colorimetric differentiation is essential for process validation, troubleshooting, or end-use product development. We exclusively serve direct industrial integration with a focus on downstream production and laboratory settings.

    1. Electrophoretic Analysis in Protein and Nucleic Acid Manufacturing

    Bio-pharmaceutical manufacturers use Stains-All for rapid and sensitive staining of glycosaminoglycans, calcium-binding proteins, and nucleic acids in polyacrylamide gel electrophoresis (PAGE). Integrators apply this dye to validate process intermediates, confirm target purification levels, and monitor for possible degradation or carryover of process-related impurities. Effective colorimetric resolution ensures ongoing QC and regulatory required batch release analytics prior to downstream drug substance formulation.

    Industry compliance standards

    • United States Pharmacopeia (USP) Chapter 1045 Analysis of Proteins
    • European Pharmacopoeia 2.2.31 Electrophoresis
    • Good Manufacturing Practice (GMP) for in-process testing
    • ICH Q6B Specifications: Test Procedures and Acceptance Criteria for Biotechnological/Biological Products

    Typical usage ratio

    • 0.005% – 0.01% w/v in aqueous or formamide buffer solutions
    • Concentration adjusted according to protein/glycan concentration and gel thickness

    Downstream process integration

    • Applied after SDS-PAGE or agarose gel run prior to imaging
    • Used in analytical characterization labs for in-process and final batch verification
    • QC labs employ for process validation and troubleshooting

    Final product types

    • Therapeutic protein drug substances
    • Monoclonal antibodies
    • Glycosaminoglycan APIs (e.g. heparin, chondroitin sulfate)
    • DNA/RNA raw materials for diagnostics

    2. Analytical Colorimetric Assays for Water Treatment Chemical Manufacturers

    Stains-All functions as a selective color reagent in analysis and on-line monitoring of polyanionic species such as polyphosphates, EDTA, and calcium ions in industrial water treatment formulations and effluents. Water treatment formulation plants integrate Stains-All in spectrophotometry modules or colorimetric assay kits to monitor product quality, verify raw material specs, and optimize final dosing blends. Its chromogenic performance helps flag formulation drift and contamination before customer shipment.

    Industry compliance standards

    • ASTM D515 Standard Test Method for Phosphorus in Water
    • ISO 6878: Water quality — Determination of phosphorus
    • US EPA 365.2 (Orthophosphate by Colorimetry)
    • ISO 9001 for chemical manufacture QC

    Typical usage ratio

    • Final test solution: 0.02 – 0.04% w/v
    • Dosed to match analyte range and target spectrometry sensitivity (UV-Vis 600 nm)

    Downstream process integration

    • Integrated into QC/QA laboratories post-batch mixing
    • In-process monitoring during blending of water conditioning chemicals
    • Utilized in final product and effluent compliance testing stations

    Final product types

    • Industrial polyphosphate water treatment blends
    • Chealting agent formulations (EDTA/Na-polyphosphate)
    • Boiler and cooling water chemical packages
    • Municipal water testing kits

    3. Histochemical and Cytochemical Dyeing in Analytical Kit Production

    Clinical and biotechnology diagnostics manufacturers use Stains-All as a specialty dye in kit assembly for histochemical and cytochemical detection of mucopolysaccharides, nuclear proteins, and certain metal ions in cell and tissue preparations. Integration of Stains-All occurs during in vitro diagnostic kit filling, demanding strict control over dye purity, stability, and batch homogeneity to meet repeatable lot performance. The product’s color shift under differing pH and metal cation environments enables high-specificity endpoint readouts with manual and automated imaging platforms.

    Industry compliance standards

    • ISO 13485 Medical Device Quality Management
    • European IVD Directive (IVDD) 98/79/EC
    • US FDA 21 CFR 820 Quality System Regulation
    • CLSI GP42-A6 Procedures for the Recovery and Identification of Organisms

    Typical usage ratio

    • In-kit solutions: 0.1 – 0.2 mg/mL
    • Standardized for each kit type and adjusted based on substrate/cell samples

    Downstream process integration

    • Added during reagent formulation and kit vial filling
    • QC inspected for color stability, solubility, and assay sensitivity per lot
    • Subject to sterilization or preservation steps prior to final kitting

    Final product types

    • Cytochemistry stain kits for laboratory research
    • Histopathology consumables
    • Automated slide-stainer system reagents
    • IVD reagents for clinical labs

    4. Chromogenic Assay Development in Academic and Industrial Research

    Manufacturers of specialized research chemicals supply Stains-All as a reagent for the development of advanced chromogenic assays, particularly those quantifying calcium, barium, or rare earth cations in solution. Research and QC labs depend on its distinctive hypsochromic shift properties to discriminate analyte identity and quantify trace contaminants in high-value R&D applications. Strict selection of dye lot, batch traceability, and performance verification support academic publication, patent submission, or technology transfer to pilot-scale production.

    Industry compliance standards

    • OECD GLP Principles for Research Laboratories
    • ISO/IEC 17025 Laboratory Accreditation
    • ASTM E2877 Standard Guide for Chromogenic Assay Development
    • Company-specific SOPs for analytical reagent QC

    Typical usage ratio

    • 0.01 – 0.05% w/v in buffered or aqueous assay solutions
    • Adjusted based on required colorimetric sensitivity and target cation species

    Downstream process integration

    • Processed in reagent blending and small-scale filling operations
    • Evaluated for batch-to-batch color response and reagent stability
    • Quality controlled prior to shipment to university and industrial innovation labs

    Final product types

    • Chromogenic diagnostic reagents
    • Analytical validation kits for ICP-OES/AAS sample preparation
    • Custom colorimetric assay kits for contract research organizations
    • Educational laboratory reagent packs
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    Competitive Stains-All prices that fit your budget—flexible terms and customized quotes for every order.

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    Certification & Compliance
    More Introduction

    Stains-All: A Closer Look at Our Blue Dye for Analytical and Research Excellence

    The Knowledge and Experience Behind Stains-All

    Working directly with dyes and color reagents for over twenty years, I’ve seen what happens in a lab when a staining reagent hits the mark – and what happens when it falls short. Stains-All doesn’t just check off chemical properties on a list. For those who run protein gels, separate glycosaminoglycans, or track calcium-binding proteins, this product delivers results that can be relied on day after day. Over the years, researchers have counted on the clarity, speed, and selectivity provided by Stains-All because it performs without the surprise inconsistencies that come from changing batches or uncertain quality.

    Model and Core Chemical Features

    Standardized as our Stains-All Model 61140, this dye is supplied as a dark blue crystalline powder that dissolves well and produces stable solutions with sharp color contrast on a range of sample types. The chemical name in most journals reads as 1-Ethyl-2-[[3-(1-ethyl-1-naphthalen-1-yl-1,2,3,4-tetrahydroisoquinolin-2-ylidene)-1-propenyl]-benzo[f]quinolinium chloride, a mouthful that actually means more in the lab than it does on the bottle. It responds delicately to the differences in molecular structure, giving researchers an immediate visual answer about what’s in their sample.

    Why Stains-All Turns Heads in the Lab

    A lot of folks in research jump between dyes looking for one that highlights those barely-there anionic groups or small-mass proteins. Stains-All has earned its place on many lab benches because it uncovers bands and details other dyes miss. It produces a rich blue, purple, or even red hue, depending on the molecule, and that range lets users distinguish between acidic glycoproteins, polyanions, and nucleic acids. Other dyes sometimes mask valuable information by staining everything on the gel the same color, leading to time wasted repeating experiments or missing key results.

    We make every batch of Stains-All with close attention to purity. Contaminants cause background smears, or loss in sensitivity, making downstream interpretation a headache. By synthesizing the product entirely in our own facility, we control the starting reagents and the process from beginning to end. That attention to detail shows in the final purity—a level so high you can spot a low-abundance proteoglycan in a sea of albumin.

    Typical Uses and Techniques in the Field

    The most common request we see is from protein researchers looking for more than just a faint band on their PAGE gel. They want quick detection with high resolution and minimal sample destruction. Stains-All soaks seamlessly into polyacrylamide gels. Instead of an overnight staining step with worries about destaining, it begins revealing bands in as little as 10 minutes with simple light exposure. Stains-All also proves its value when researchers compare it with silver staining, which while sensitive, can be time-consuming and prone to artifacts if the protocol deviates even slightly. Stains-All, in contrast, doesn’t need silver’s meticulous process or harsh reagents.

    Calcium-binding proteins and acidic mucopolysaccharides exhibit a different color signature under Stains-All. For instance, connective tissue scientists routinely rely on this dye to distinguish between pure protein bands and those carrying bound carbohydrates or sulfate groups. Histone analysis, an area with no room for error, finds Stains-All useful for its ability to reveal highly basic proteins that evade other stains.

    Researchers working with nucleic acids, especially in chromatin and ribonucleoprotein work, also prefer Stains-All thanks to its direct visualization and compatibility with UV photography. Our customers often mention that the dye’s spectral properties make imaging with standard lab equipment a breeze, no need to invest in new hardware.

    What Sets Stains-All Apart from the Old Standbys

    Plenty of stains have come and gone promising big leaps in visualization. Coomassie Brilliant Blue, for example, has served as a workhorse for decades, but comes with trade-offs in terms of background and selectivity. Coomassie’s uniform color response won’t separate out polyanions or calcium-binding proteins; if your work demands this clarity, Stains-All makes the difference.

    Stains-All outshines colloidal stains and silver stains where tolerance for protocol speed and environmental sensitivity matter. Users won’t wait for hours to see clear bands. Dyeing solutions mix quickly, adhere evenly, and wash out cleanly without persistent blue smears. In proteomics or glycomics, those characteristics save time and loan sharper results, especially during survey runs or quick quantitation. With Stains-All, repeated runs rarely suffer from variable sensitivity across the same gel, a problem we’ve seen many times with more complex or delicate stains.

    For projects where nucleic acids run next to proteins, our dye’s selectivity helps avoid accidental cross-staining that can compromise interpretation. Researchers in diagnostic settings and agricultural testing have pointed to this advantage, reporting fewer false positives and more confident gel calls, especially where sensitive threshold determinations drive decision making. The dye’s color response does more than look pretty – it delivers functional distinctions, giving research and process labs a functional head start.

    Supporting Reliable Results Through Consistent Production

    Having direct control over the Stains-All synthesis and quality assurance matters. Our process doesn’t start and stop at a certificate of analysis; technicians check critical parameters like absorption maxima, dye content, and solubility for every lot. Customers tell us they notice batch-to-batch reliability, especially when side-by-side comparison with imported or relabeled alternatives shows subtle, yet important, improvements in band resolution and repeatability.

    In scaling Stains-All production, we resisted shortcuts that could introduce inconsistencies. Critical steps in filtering, crystallization, and drying come from years refining our plant’s protocol, not from imported processes. This means gels run last year show the same color balance and selectivity as those from a new pack opened this week.

    Handling and Storage Insights from Direct Experience

    Stains-All responds best when handled with respect for its sensitivity. The powder absorbs moisture fast, leading to color shifts or loss of activity if left open or stored in humid rooms. We pack every bottle with desiccant and recommend storage in a dry, dark place. That may sound like common sense, but uncontrolled humidity and light exposure consistently cause headaches in busy labs. Customers who keep their dye tightly sealed and out of direct light report optimal shelf life and unwavering color performance.

    Users sometimes ask whether the blue microcrystals clump with long storage. In our experience, even with vibration and movement during shipping, the dye retains its smooth, powdery character so long as the bottle stays sealed. Opening and closing the bottle many times per day invites atmospheric moisture, so those running high-throughput workflows sometimes aliquot into smaller, single-use vials to avoid unnecessary cycling – a simple practice that preserves peak performance.

    Addressing Common Issues in the Lab

    No product is immune to mishandling. A recurring issue we’ve addressed involves over-staining, where too much dye or too long an exposure brings heavy backgrounds that mask low-abundance bands. Our advice: prepare fresh working solutions, use exactly measured gel volumes, and run preliminary time tests on a representative sample if using the dye on a new matrix. Stains-All stands out in its forgiveness, washing clean with gentle agitation and water or dilute acetic acid, so operators rarely lose a gel to irreversible overstain – an experience we’ve witnessed with more aggressive colorants.

    Light sensitivity matters, as Stains-All fades with strong UV or sunlight. Labs that run busy schedules near windows or use open benches can see variable results unless they cover gels or work quickly. We developed training guides and visual troubleshooting charts for those facing inconsistent results, helping teams identify whether lighting, solution age, or sample overloads are the source. Consistent communication with researchers has allowed us to adjust packaging and instructions to reduce errors and boost confidence.

    Some customers aiming to stretch their budget have run the dye beyond recommended dilutions, chasing even lighter backgrounds. Experience tells us that excessive dilution sacrifices sensitivity, especially for low-mass proteins. Focusing on right-sized batches of fresh dye gives better cost performance in the long run, preventing repeat work or missed results. Through feedback, our production team fine-tuned suggested protocols and shared stepwise troubleshooting tips that reflect real-world experience, not just theory.

    Safety Considerations Rooted in Manufacturer Practice

    Direct manufacturer oversight allows us to manage potential hazards responsibly. Like many organic dyes, Stains-All can be skin and eye irritant when handled in its powdered form. Our teams consistently use gloves, eye protection, and mask handling areas to minimize unnecessary exposure. Spills clean easily with plenty of water and soap, and we audit all production areas for possible dust or dye deposits. Though our product paperwork covers recommended precautions, having teams work with the material every day makes practical safety a habit, not just a box-ticking exercise.

    Years spent in the lab have shown us how minor lapses – an open container left on a humid bench, accidental contact with uncovered skin, or disposal via drains without dilution – can quickly turn small mistakes into bigger headaches. Guided by those lessons, we keep our packages small enough for reasonable turnover rates, helping customers avoid storing opened reactive material for months on end.

    Sustainability, Sourcing, and Trust in the Supply Chain

    We produce Stains-All entirely at our own facility. This means we hold ourselves accountable for every gram that leaves the plant. All raw materials come from trusted partners with transparent supply chains, so there’s no uncertainty around hidden impurities or contaminants. As a direct producer, our purchasing and audit teams inspect chemical lots at arrival, a policy enforced decades before it became industry standard. Having walked our own production floors, I’ve seen that those steps pay off, not just in product quality, but in the trust customers place in our brand.

    Modern research increasingly values sustainability, and every lot of solvent, dye, or packaging carries our responsibility to minimize waste. We design our process to keep reaction yields high and side-products to a minimum. Waste solutions feed into in-house water treatment and neutralization, so customers who value eco-friendly stewardship can rely on our manufacturing standards. Feedback from clients has pushed us to keep improving, from reducing unnecessary secondary packaging to sourcing bottles that offer durability without excessive plastic content.

    Supporting Growth in Research and Industry

    Protein and glycan analytics, clinical diagnostics, plant biology, and polymer research all require stains that reveal subtle differences. We listen to users in pharma, universities, biotech, and quality control settings to refine Stains-All according to what really matters: contrast, consistency, and quick, interpretable results. We’ve supported labs developing vaccines, mapping genetic profiles, and optimizing food safety tests. Whether shipping five grams to a university student or multiple kilos to an industrial research facility, our team knows their results depend directly on what arrives in those bottles.

    Clients often share their workflows for faster results. Some switch from traditional stains to Stains-All, saving hours of labor per season. In outbreak surveillance and rapid pathogen detection, those hours translate into better response times. Agricultural labs confirm the dye’s selectivity helps make decisions on crop treatments or seed quality checks. With direct feedback loops, we continue adjusting production to support new applications and anticipate what tomorrow’s experiments will require in terms of reliability and speed.

    Continuous Improvement: Looking Beyond the Bench

    There’s no end to how a product can improve when you keep your ears open. Researchers have introduced new gel formulations, switched buffer systems, and pushed for deeper color contrast as detection equipment evolves. As manufacturer, we don’t wait for complaints to make changes. Technical team members routinely test Stains-All against emerging compounds and gel chemistries, updating our technical support materials based on observed results, not marketing projections.

    Insight from years of production and hands-on customer support shapes every lot of Stains-All. For those moving science forward with tight budgets and strict deadlines, having a stain that is battle-tested and consistently reliable can be the difference between a missed window and a published result. Whether used in early research, quality control, or scale-up development, the direct connection between our factory and the user ensures we remain responsible for outcomes, not just ingredients.

    In Conclusion: Direct Experience at the Heart of Trust

    Every bottle of Stains-All leaving our plant represents more than finished dye. It’s a promise of consistency, purity, and visual clarity, crafted from decades of direct experience and continued adaptation. Our commitment means every researcher, no matter where they work, receives a product shaped by real-world feedback and built for scientific reliability. That cycle of support and improvement keeps Stains-All more than “just a stain”—it’s a partner in discovery.