Product Name: 4-Methylbenzothiazol-2-Ylamine
Synonyms: 2-Amino-4-methylbenzothiazole
CAS Number: 20437-76-7
Recommended Use: Laboratory chemical, research and development
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Emergency Phone: [Emergency number required by distribution or local guidelines]
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Classification: Toxic to aquatic life, harmful if swallowed or inhaled, irritation to skin, eyes, and respiratory tract
Signal Word: Warning
Hazard Statements: May cause acute toxicity if ingested. May provoke respiratory, skin, and ocular irritation. Possibly toxic to aquatic organisms with long-lasting effects.
Pictogram: Exclamation mark, environmental hazard
Precautionary Statements: Avoid release to the environment. Do not breathe dust or fume. Use personal protection. Wash skin thoroughly after handling. In case of hazardous exposure, seek immediate medical advice.
Other Hazards: Dust may cause mechanical irritation.
Chemical Name: 4-Methylbenzothiazol-2-Ylamine
Synonyms: 2-Amino-4-methylbenzothiazole
CAS Number: 20437-76-7
EC Number: 243-800-8
Concentration: >98% (typical purity for laboratory and industrial usage)
Impurities: Trace organic and inorganic byproducts (<1%).
Inhalation: Move into fresh air, support breathing if required, seek immediate medical attention if symptoms persist.
Skin Contact: Remove contaminated clothing, flush skin with plenty of water and soap. Consult a physician for irritation or allergic reaction.
Eye Contact: Rinse with water for at least 15 minutes, lifting eyelids occasionally. Seek prompt medical attention.
Ingestion: Rinse mouth, do not induce vomiting, contact healthcare provider or poison control center immediately.
Most Important Symptoms/Effects: Nausea, coughing, shortness of breath, skin or eye irritation, headache.
Notes to Physician: Treat symptomatically, consider possibility of delayed effects due to absorption.
Suitable Extinguishing Media: Water spray, alcohol-resistant foam, dry chemical, carbon dioxide.
Specific Hazards: Emits toxic fumes of nitrogen oxides, sulfur oxides, carbon monoxide, carbon dioxide when decomposed by fire.
Protective Equipment for Firefighters: Full-body protective gear, self-contained breathing apparatus (SCBA)
Combustion Products: Dense, irritating smoke, toxic byproducts.
Special Procedures: Use water spray to cool containers, prevent fire spread. Avoid runoff entering drains or waterways.
Personal Precautions: Use gloves, goggles, and protective clothing. Avoid dust and fumes, ensure adequate ventilation.
Environmental Precautions: Prevent substance from entering drains or soil. Notify authorities in case of significant release.
Spill Clean-up Methods: Sweep up using tools that avoid dust formation, place residue in a suitable, closed and labeled container. Wash spill site after material pickup is complete.
Decontamination: Clean all affected surfaces with appropriate cleaning agent compatible with the substance.
Disposal of Collected Material: Dispose according to local and national regulations.
Handling: Handle in a well-ventilated area with appropriate personal protective equipment. Keep away from heat, flame, and incompatible substances. Avoid inhaling dust, using open containers, or skin contact.
Storage: Store in tightly closed original container in a cool, dry, well-ventilated area. Protect from direct sunlight, moisture, and sources of ignition. Store away from acids, bases, and strong oxidizers.
Special Storage Guidelines: Label storage containers clearly. Use secondary containment for bulk quantities.
Engineering Controls: Use process enclosures, local exhaust ventilation, and fume hoods to control airborne exposure.
Personal Protective Equipment: Chemical-resistant gloves, safety goggles, face shield, lab coat or apron, respiratory protection in case of dust or inadequate ventilation.
Workplace Exposure Limits: No established occupational exposure limit, but minimize exposure using good industrial hygiene practices.
Hygiene Practices: Wash hands thoroughly after handling. Remove contaminated clothing and wash before reuse.
Special Requirements: Avoid eating, drinking, or smoking in contaminated areas.
Appearance: Off-white to light yellow powder
Odor: Slight, characteristic aromatic
Melting Point: 179-183°C
Boiling Point: Data not available (decomposes)
Flash Point: Not easily flammable
Solubility in Water: Slightly soluble
Density: Approx. 1.3 g/cm³
Vapor Pressure: Negligible under normal conditions
pH: Not applicable
Molecular Formula: C8H8N2S
Molecular Weight: 164.23 g/mol
Partition Coefficient (log Kow): Estimated 1.5–3 (moderate potential for bioaccumulation)
Other Properties: Stable solid at normal temperature and pressure.
Chemical Stability: Stable under normal handling, storage, and temperature conditions.
Reactivity: Avoid strong oxidizing agents, strong acids, and bases due to possible hazardous decomposition products.
Hazardous Reactions: May produce toxic gases if involved in fire or mixed with incompatible substances.
Decomposition Products: Nitrogen oxides, sulfur oxides, carbon monoxide, carbon dioxide.
Conditions to Avoid: Heat, open flame, sparks, moisture, incompatible substances.
Acute Toxicity: LD50 (oral, rat): Not fully defined, but expected to be moderately toxic based on structure.
Likely Routes of Exposure: Inhalation, ingestion, skin and eye contact.
Symptoms: Irritation to skin, eyes, respiratory tract, gastrointestinal disturbance if swallowed.
Chronic Effects: Repeated or prolonged exposure may target liver, kidneys, or central nervous system.
Sensitization: Not reported, but avoid skin contact.
Carcinogenicity: Not classified by IARC, NTP, or EPA.
Mutagenicity: Data insufficient.
Reproductive Effects: No conclusive reported data.
Other Information: Safe laboratory handling reduces health risks.
Ecotoxicity: Harmful to aquatic life based on analogous compounds and structural alerts.
Persistence and Degradability: May persist in environment, partial biodegradability depending on conditions.
Bioaccumulation Potential: Moderate, based on log Kow and water solubility data.
Mobility in Soil: Low volatility, low leaching potential under ordinary environmental conditions.
Other Adverse Effects: Prevent substance from entering natural water bodies to protect aquatic organisms.
Waste Disposal: Collect solid waste in suitable containers for disposal at approved hazardous waste facilities.
Contaminated Packaging: Decontaminate empty containers before recycling or disposal. Dispose as hazardous waste if residues remain.
Recommended Chemical Disposal: Consult local, regional, and national regulations prior to disposal. Never dispose of with regular trash or sewer.
Other Precautions: Keep waste away from water bodies and municipal sewage. Label all waste containers accurately.
UN Number: Not specifically assigned for this compound.
UN Proper Shipping Name: Chemical, n.o.s. (not otherwise specified) for non-bulk shipments.
Transport Hazard Class: Not classified as hazardous for transport under most global regulations, unless significant quantities are shipped.
Packing Group: Not assigned.
Environmental Hazards: May be considered hazardous to aquatic environment in large volumes.
Special Precautions: Avoid spillage in transit, use dedicated packaging for chemicals, and secure labels.
TSCA Status: Listed or can be made available upon request.
EINECS/ELINCS: Listed under EC Number 243-800-8.
SARA Title III: Not classified as extremely hazardous, no specific threshold planning quantity.
California Proposition 65: Not listed.
REACH Status: Subject to registration for large-scale use; consult supplier.
Other National Inventories: Contact supplier or regulatory authority for inclusion in local chemical inventories.
Other Regulations: Utilize in accordance with workplace safety standards, chemical management acts, and hazardous material handling rules enforced locally.
