【Product Name】1-Methyltetrazole-5-thiol 1-甲基-5-巰基四氮唑 【Synonyms】 1-Methyl-1H-tetrazole-5-thiol 1-Methyl-5-mercapto-1,2,3,4-tetrazole 1-Methyl-5-mercaptotetrazole N-Methyltetrazolethiol 【CAS】13183-79-4 【Formula】C2H4N4S 【Molecular Weight】116.14 【EINECS】236-132-2 【RTECS】XF7600000 【RTECS Class】Reproductive Effector 【Beilstein/Gmelin】2820 【Beilstein Reference】5-26-13-00097 Physical and Chemical Properties 【Appearance】Solid. 【Melting Point】126 【pKa/pKb】.9 First Aid Measures 【Ingestion】Get medical aid. Wash mouth out with water. 【Inhalation】Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid. 【Skin】Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. 【Eyes】If symptoms develop, immediately move individual away from exposure and into fresh air. Flush eyes gently with water for at least 15 minutes while holding eyelids apart; seek immediate medical attention. Handling and Storage 【Storage】Store in a cool, dry place. Store in a tightly closed container. 【Handling】Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes. Hazards Identification 【Ingestion】The toxicological properties of this substance have not been fully investigated. 【Inhalation】Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated. 【Skin】Causes skin irritation. 【Eyes】Causes eye irritation. Exposure Controls/Personal Protection 【Personal Protection】Chemical splash goggles in compliance with OSHA regulations are advised; however, OSHA regulations also permit other type safety glasses. Whre chemical resistant gloves. To prevent repeated or prolonged skin contact, wear impervious clothing and boots. 【Respirators】Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary. Fire Fighting Measures 【Flash Point】124 【Fire Fighting】Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use agent most appropriate to extinguish fire. Accidental Release Measures 【Small spills/leaks】Vacuum or sweep up material and place into a suitable disposal container. Avoid generating dusty conditions. Stability and Reactivity 【Stability】No data. 【Incompatibilities】Strong oxidizing agents. 【Decomposition】Nitrogen oxides, carbon monoxide, oxides of sulfur, carbon dioxide.