2-Amino-4-methylthiazole
Also known as: 4-Methylthiazol-2-amine, 2-Thiazolamine, 4-methyl-, 4-Methyl-1,3-thiazol-2-amine, EINECS 216-505-6, MFCD00005329, aminomethiazole
2-Amino-4-methylthiazole (CAS 1603-91-4) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H6N2S and a molecular weight of 114.169 g/mol. Key properties include a melting point of 44-47 °C(lit.), a boiling point of 232.5±9.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 94.4±18.7 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1603-91-4
- Jingsj CID
- J-28043-3
- Molecular Formula
- C4H6N2S
- Molecular Weight
- 114.169 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 44-47 °C(lit.) |
|---|---|
| Boiling Point | 232.5±9.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 94.4±18.7 °C |
| Exact Mass | 114.025169 |
| PSA | 67.15000 |
| LogP | 0.84 |
| Vapor Pressure | 0.1±0.5 mmHg at 25°C |
| Refractive Index | 1.618 |
| Additional Property | soluble |
GHS Safety & Compliance
- 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-4-methylthiazole?
The CAS number of 2-Amino-4-methylthiazole is 1603-91-4.
What are the molecular formula and molecular weight of 2-Amino-4-methylthiazole?
2-Amino-4-methylthiazole has molecular formula C4H6N2S and molecular weight 114.169 g/mol.
Is 2-Amino-4-methylthiazole hazardous?
2-Amino-4-methylthiazole has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 2-Amino-4-methylthiazole?
For 2-Amino-4-methylthiazole, Upstream Products: Chloroacetone, Potassium thiocyanate, 3-Bromopropyne; Downstream Products: 4-Methyl-5-nitro-1,3-thiazol-2-amine, 5-(tert-Butyl)-4-methylthiazol-2-amine, 2-Bromo-4-methylthiazole.
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-4-methylthiazole (CAS 1603-91-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28043-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.