2-Amino-5-(methylsulfonyl)thiazole

Also known as: 2-Amino-5-methylsulfonylthiazole, 5-(Methylsulfonyl)-1,3-thiazol-2-amine, 5-Methylsulfonyl-1,3-thiazol-2-amine, 5-(Methylsulfonyl)thiazol-2-amine, 2-Thiazolamine, 5-(methylsulfonyl)-, 5-(methylsulfonyl)-2-Thiazolamine, 2-amino-5-methylsulphonyl-thiazole, 5-methanesulfonyl-thiazol-2-ylamine

2-Amino-5-(methylsulfonyl)thiazole (CAS 20812-13-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H6N2O2S2 and a molecular weight of 178.23300 g/mol. Key properties include a boiling point of 446.7ºC at 760 mmHg, a density of 1.533g/cm3 and a flash point of 224ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 20812-13-9
Jingsj CID: J-1523430-7
Molecular Formula: C₄H₆N₂O₂S₂
Molecular Weight: 178.23300 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	446.7ºC at 760 mmHg
Density	1.533g/cm3
Flash Point	224ºC
Exact Mass	177.98700
PSA	109.67000
LogP	1.79080
Vapor Pressure	3.56E-08mmHg at 25°C
Refractive Index	1.6

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-(methylsulfonyl)thiazole?

The CAS number of 2-Amino-5-(methylsulfonyl)thiazole is 20812-13-9.

What are the molecular formula and molecular weight of 2-Amino-5-(methylsulfonyl)thiazole?

2-Amino-5-(methylsulfonyl)thiazole has molecular formula C4H6N2O2S2 and molecular weight 178.23300 g/mol.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "2-Amino-5-(methylsulfonyl)thiazole (CAS 20812-13-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1523430-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.