5-Amino-1,3,4-thiadiazole-2-thiol
Also known as: 2-Amino-5-mercapto-1,3,4-thiadiazole, 5-Amino-2-mercapto-1,3,4-thiadiazole, 1,3,4-Thiadiazole-2-thiol, 5-amino-, 5-Amino-1,3,4-thiadiazole-2(3H)-thione, 2-Amino-5-sulfanyl-1,3,4-thiadiazole, AMTD, NSC 21402
5-Amino-1,3,4-thiadiazole-2-thiol (CAS 2349-67-9) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C2H3N3S2 and a molecular weight of 133.20 g/mol. Key properties include a melting point of 235 °C (dec.)(lit.), a boiling point of 242.3±23.0 °C at 760 mmHg, a density of 2.0±0.1 g/cm3 and a flash point of 100.3±22.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2349-67-9
- Jingsj CID
- J-826638-4
- Molecular Formula
- C2H3N3S2
- Molecular Weight
- 133.20 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 235 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 242.3±23.0 °C at 760 mmHg |
| Density | 2.0±0.1 g/cm3 |
| Flash Point | 100.3±22.6 °C |
| Exact Mass | 132.976837 |
| PSA | 118.84000 |
| LogP | -0.77 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.991 |
| Additional Property | insoluble |
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 5-Amino-1,3,4-thiadiazole-2-thiol?
The CAS number of 5-Amino-1,3,4-thiadiazole-2-thiol is 2349-67-9.
What are the molecular formula and molecular weight of 5-Amino-1,3,4-thiadiazole-2-thiol?
5-Amino-1,3,4-thiadiazole-2-thiol has molecular formula C2H3N3S2 and molecular weight 133.20 g/mol.
What are the upstream and downstream products of 5-Amino-1,3,4-thiadiazole-2-thiol?
For 5-Amino-1,3,4-thiadiazole-2-thiol, Upstream Products: Carbon disulphide, Thiosemicarbazide, Potassium ethylxanthate; Downstream Products: 1,3,4-Thiadiazol-2-amine, 5-(propylthio)-, 2-Acetamido-5-mercapto-1,3,4-thiadiazole, 2-Amino-5-(methylthio)-1,3,4-thiadiazole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "5-Amino-1,3,4-thiadiazole-2-thiol (CAS 2349-67-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-826638-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.