5-Methylthio-1,3,4-thiadiazole-2-thiol
5-Methylthio-1,3,4-thiadiazole-2-thiol (CAS 6264-40-0) is a heterocyclic organic compound with a molecular weight of 164.27 g/mol. This chemical serves as a valuable building block in organic synthesis. It is characterised by its unique thiadiazole ring structure, featuring both a methylthio and a thiol group, which allows for diverse chemical transformations. It is frequently employed in the development of novel compounds within research and development settings.
- Synonyms
- 6264-40-0

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of complex organic molecules. Its functional groups offer versatile reactivity for constructing new chemical entities.
Heterocyclic Chemistry
A useful building block for creating diverse heterocyclic compounds, particularly those containing the thiadiazole core structure. These structures are important in medicinal chemistry and materials science.
Research and Development
Employed in academic and industrial research laboratories for exploring new synthetic pathways and developing novel chemical compounds with potential applications.
| Molecular weight | 164.27 |
|---|---|
| Empirical formula | C3H4N2S3 |
| Assay | 98% |
| Melting point | 138-141 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 5-Methylthio-1,3,4-thiadiazole-2-thiol used for?
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5-Methylthio-1,3,4-thiadiazole-2-thiol (CAS 6264-40-0) is primarily used as a building block in organic synthesis and in heterocyclic chemistry research.
What are the CAS number and formula for this compound?
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The CAS number is 6264-40-0, and the empirical formula is C3H4N2S3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Methylthio-1,3,4-thiadiazole-2-thiol with an assay of 98%. This product is intended for research and chemical synthesis purposes and is not represented as USP, BP, or EP grade.
How should 5-Methylthio-1,3,4-thiadiazole-2-thiol be handled safely?
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This compound is a Warning substance that can cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Handle with appropriate personal protective equipment, including a dust mask (N95), eyeshields, and gloves. Ensure good ventilation and avoid breathing dust. In case of eye contact, rinse cautiously with water for several minutes (P305 + P351 + P338).
Is 5-Methylthio-1,3,4-thiadiazole-2-thiol a controlled substance?
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Based on the provided data, 5-Methylthio-1,3,4-thiadiazole-2-thiol is not listed as a controlled substance.
How are your chemicals packed and shipped?
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Tech Serve Solutions packs and exports chemicals according to international shipping regulations and safety standards. Specific packaging details are available upon request.
How can I request a quote or sample?
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To request a quote or sample of 5-Methylthio-1,3,4-thiadiazole-2-thiol, please contact our sales team through the website or by phone.
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