2-Amino-5-methyl-1,3,4-thiadiazole
Also known as: 5-Methyl-1,3,4-thiadiazol-2-amine, 5-Methyl-2-amino-1,3,4-thiadiazole, 1,3,4-Thiadiazole, 2-amino-5-methyl-, EINECS 203-573-7, MFCD00003110
2-Amino-5-methyl-1,3,4-thiadiazole (CAS 108-33-8) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C3H5N3S and a molecular weight of 115.15700 g/mol. Key properties include a melting point of 224-225 °C, a boiling point of 261.2ºC at 760 mmHg, a density of 1.372 g/cm3 and a flash point of 111.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 108-33-8
- Jingsj CID
- J-31952-8
- Molecular Formula
- C3H5N3S
- Molecular Weight
- 115.15700 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 224-225 °C |
|---|---|
| Boiling Point | 261.2ºC at 760 mmHg |
| Density | 1.372 g/cm3 |
| Flash Point | 111.8ºC |
| Exact Mass | 115.02000 |
| PSA | 80.04000 |
| LogP | 1.00990 |
| Vapor Pressure | 6.12E-05mmHg at 25°C |
| Refractive Index | 1.631 |
| Storage Conditions | Room temperature. |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 2-Amino-5-methyl-1,3,4-thiadiazole?
The CAS number of 2-Amino-5-methyl-1,3,4-thiadiazole is 108-33-8.
What are the molecular formula and molecular weight of 2-Amino-5-methyl-1,3,4-thiadiazole?
2-Amino-5-methyl-1,3,4-thiadiazole has molecular formula C3H5N3S and molecular weight 115.15700 g/mol.
What are the upstream and downstream products of 2-Amino-5-methyl-1,3,4-thiadiazole?
For 2-Amino-5-methyl-1,3,4-thiadiazole, Upstream Products: acetic acid, Thiosemicarbazide, Acetyl chloride; Downstream Products: 2-Mercapto-5-methyl-1,3,4-thiadiazole, 2-Bromo-5-methyl-1,3,4-thiadiazole, Sulfamethizole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Amino-5-methyl-1,3,4-thiadiazole (CAS 108-33-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-31952-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.