2-Amino-5-nitrothiazole
Also known as: 5-Nitrothiazol-2-amine, 5-Nitro-2-thiazolamine, 2-Thiazolamine, 5-nitro-, 5-nitro-2-thiazolylamine, Enheptin-T, Entramin, NCI-C03065, MFCD00005326
2-Amino-5-nitrothiazole (CAS 121-66-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C3H3N3O2S and a molecular weight of 145.140 g/mol. Key properties include a melting point of 195-200 °C (dec.)(lit.), a boiling point of 345.1±15.0 °C at 760 mmHg, a density of 1.7±0.1 g/cm3 and a flash point of 162.5±20.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 121-66-4
- Jingsj CID
- J-32518-8
- Molecular Formula
- C3H3N3O2S
- Molecular Weight
- 145.140 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 195-200 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 345.1±15.0 °C at 760 mmHg |
| Density | 1.7±0.1 g/cm3 |
| Flash Point | 162.5±20.4 °C |
| Exact Mass | 144.994598 |
| PSA | 112.97000 |
| LogP | 0.83 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.705 |
| Additional Property | <0.1 g/100 mL at 20 ºC |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2934100090 |
|---|---|
| Summary | 2934100090 other compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 2-Amino-5-nitrothiazole?
The CAS number of 2-Amino-5-nitrothiazole is 121-66-4.
What are the molecular formula and molecular weight of 2-Amino-5-nitrothiazole?
2-Amino-5-nitrothiazole has molecular formula C3H3N3O2S and molecular weight 145.140 g/mol.
Is 2-Amino-5-nitrothiazole hazardous?
2-Amino-5-nitrothiazole has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 2-Amino-5-nitrothiazole?
For 2-Amino-5-nitrothiazole, Upstream Products: 2-Aminothiazole, 2-Acetamido-5-nitrothiazole, 2-Acetamidothiazole; Downstream Products: Pentanamide, N-(5-nitro-2-thiazolyl)-, 2-chloro-5-nitrothiazole, 2-Bromo-5-nitrothiazole.
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-nitrothiazole (CAS 121-66-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32518-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.