© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Product Name: Pteroic Acid
Concentration(s): 95%, 98%
Synonyms: 2-Amino-4-oxo-6-pteridinecarboxylic acid
Recommended Uses: Laboratory research, pharmaceuticals synthesis
Supplier Details: Company name, address, telephone, and email included on shipment documentation
Emergency Contact: Refer to company safety officer, 24-hour response contact provided
CAS Number: 119-24-4
EC Number: 204-308-4
Classification: Eye and skin irritant; Health hazard if ingested or inhaled in dust form
Label Elements: Signal word: Warning. Hazard pictograms: Exclamation mark
Hazard Statements: Causes skin and eye irritation. May cause respiratory discomfort. Harmful if swallowed in large quantities
Precautionary Statements: Use only with adequate ventilation. Wear protective clothing. Avoid breathing dust. Avoid contact with skin, eyes, and clothing
Other Hazards: No evidence of acute environmental or long-term hazards under recommended handling conditions. Dust may form explosive mixtures with air if finely distributed.
Chemical Name: Pteroic Acid
Purity: 95% (may include residual solvent or water < 5%), 98% (trace impurities < 2%)
Formulation: Single chemical compound
Molecular Formula: C7H5N5O3
Molecular Weight: 207.15 g/mol
Impurities: Unspecified substances, likely minor and non-hazardous according to available research and supplier certification.
Eye Contact: Flush eyes with plenty of clean water for 10–15 minutes, keeping eyelids open. Remove contact lenses if present. Seek medical attention if symptoms persist.
Skin Contact: Wash skin thoroughly with soap and water. Remove contaminated clothing and launder before reuse. If irritation continues, contact physician.
Inhalation: Move victim to fresh air. Maintain an open airway and monitor for breathing difficulties. Administer oxygen if trained staff are available.
Ingestion: Rinse mouth with water. Do not induce vomiting unless directed by medical personnel. Get medical help in case of large ingestion, persistent symptoms, or discomfort.
Most Important Symptoms/Effects: Transient irritation of eyes, nose, throat, and skin.
Flammability: Not classified as flammable, but may burn under severe fire conditions
Suitable Extinguishing Media: Water spray, foam, CO2, dry chemical
Unsuitable Extinguishing Media: Straight water streams for large amounts
Specific Hazards: Toxic fumes, nitrogen oxides, carbon oxides, and decomposition products possible
Protective Equipment for Firefighters: Full protective gear, self-contained breathing apparatus (SCBA)
Advice for Firefighters: Avoid inhalation of combustion gases. Use water spray to keep containers cool and disperse fumes.
Personal Precautions: Use face mask or respirator, goggles, gloves, and lab coat
Environmental Precautions: Prevent entry into waterways, sewers, or soil
Containment Methods: Sweep up using spark-proof tools, minimize dust generation. Collect in suitable, labeled containers for disposal
Clean-up Methods: Ventilate area. Rinse spill area with water after material pick-up. Dispose waste per local regulations. Notify authorities if spill causes environmental contamination.
Handling: Accumulate dust using local exhaust ventilation. Wear appropriate personal protective equipment. Avoid inhaling vapors, dust, or direct contact with skin and eyes.
Storage: Store tightly sealed in original container at room temperature (15–25°C), protected from light, moisture, and incompatible substances such as strong acids, bases, or oxidizers. Keep away from food, beverages, and animal feed. Maintain access to emergency eyewash and showers in nearby workspaces.
Exposure Limits: No established occupational exposure limits from OSHA, ACGIH, NIOSH, or EU agencies
Engineering Controls: Local and general ventilation recommended
Personal Protective Equipment: Chemical-resistant gloves, splash-proof safety goggles, lab coat, closed footwear. Use NIOSH-approved particulate respirator if dust levels exceed general safety guidelines.
Hygiene Measures: Wash hands and face thoroughly after handling. Remove contaminated clothing before eating, drinking, or leaving the work area.
Appearance: Pale yellow to beige crystalline powder
Odor: Practically odorless
Melting Point: Decomposes above 245°C
Boiling Point: Not applicable (decomposes)
Solubility: Poorly soluble in water and organic solvents
pH (solution): ~4 (in aqueous suspension)
Vapor Pressure: Not measured (solid at room temperature)
Partition Coefficient: LogP not established
Other Characteristics: Stable under standard ambient conditions, light sensitive, dust can accumulate static charge.
Chemical Stability: Stable in closed containers under recommended storage.
Reactivity: Inert under most routine handling and storage scenarios.
Incompatible Materials: Strong acids, strong bases, oxidizing agents
Decomposition Products: Thermal decomposition generates nitrogen oxides, carbon monoxide, and carbon dioxide
Hazardous Polymerization: Not reported for this compound.
Acute Toxicity: Oral LD50 (rat): >2,000 mg/kg (estimated)
Inhalation Toxicity: Data not available, but dust may irritate upper respiratory tract
Skin Contact: Non-sensitizing, slight skin irritation reported by rare chemical studies
Eye Contact: Mild, reversible irritation
Chronic Effects: No data suggesting carcinogenicity, mutagenicity, or reproductive toxicity. No evidence of systemic toxicity in laboratory handling at published exposure levels.
Target Organs: Not defined due to lack of significant systemic toxicity.
Aquatic Toxicity: Not classified as hazardous to aquatic life, but no comprehensive studies published
Persistence and Degradability: Likely persistent due to heterocyclic structure
Bioaccumulative Potential: Low given water insolubility and high molecular weight
Mobility in Soil: Product tends to persist in sediment, limited leaching
Other Adverse Effects: Avoid uncontrolled releases, as long-term ecological impact can’t be ruled out entirely without broader studies.
Waste Treatment Methods: Dispose of unused material and contaminated packaging as hazardous chemical waste
Incineration: Approved chemical waste incinerator preferred for large amounts
Landfill: Only if in compliance with local, state, or federal regulations and after neutralization if required
Contaminated Packaging: Triple rinse: discard empty containers as hazardous waste
Precautions: Observe all federal, state, and local environmental regulations regarding chemical disposal.
UN Number: Not regulated for transport
Land, Sea, and Air Transport: Not classified as dangerous goods per ADR, IMDG, IATA
Packaging Requirements: Well-sealed containers, avoid mechanical impact, thermal extremes, and moisture
Special Precautions: Packaging must prevent release of dust and accidental exposure during handling
Proper Shipping Name: Pteroic Acid; no additional shipping label requirements.
Safety, Health, and Environmental Regulations: Not listed by US EPA, EU REACH, or Canadian WHMIS as a substance of very high concern
Labeling: Signal word and hazard pictograms as per GHS
Chemical Inventory Status: Listed or exempted on major national and international inventories (e.g., TSCA, EINECS, DSL)
Right-to-Know: Not subject to right-to-know reporting in most jurisdictions
Other Regulation Notes: User carries responsibility to consult evolving regulatory guidance prior to acquisition or use; always review safety data updates before new work with this substance.
