Oxo thiamine
Also known as: 2(3H)-Thiazolone, 3-[(4-amino-2-methyl-5-pyrimidinyl)methyl]-5-(2-hydroxyethyl)-4-methyl-, 3-((4-Amino-2-methyl-5-pyrimidinyl)methyl)-5-(2-hydroxyethyl)-4-methyl-(3H)-thiazolone, 3-[(4-Amino-2-methylpyrimidin-5-yl)methyl]-5-(2-hydroxyethyl)-4-methyl-1,3-thiazol-2-one, Thiamine thiazolone, Thiaminthiazolone, Tiamintiazolone, Thiamine thiazolin-2-one
Oxo thiamine (CAS 490-82-4) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C12H16N4O2S and a molecular weight of 280.34600 g/mol. Key properties include a boiling point of 507ºC at 760mmHg, a density of 1.378g/cm3 and a flash point of 260.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 490-82-4
- Jingsj CID
- J-1505217-2
- Molecular Formula
- C12H16N4O2S
- Molecular Weight
- 280.34600 g/mol
- Category
- Organic Bases
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 507ºC at 760mmHg |
|---|---|
| Density | 1.378g/cm3 |
| Flash Point | 260.4ºC |
| Exact Mass | 280.09900 |
| PSA | 122.27000 |
| LogP | 1.06310 |
| Vapor Pressure | 4.23E-11mmHg at 25°C |
| Refractive Index | 1.662 |
| Storage Conditions | 2-8°C |
Frequently Asked Questions
What is the CAS number of Oxo thiamine?
The CAS number of Oxo thiamine is 490-82-4.
What are the molecular formula and molecular weight of Oxo thiamine?
Oxo thiamine has molecular formula C12H16N4O2S and molecular weight 280.34600 g/mol.
What are the upstream and downstream products of Oxo thiamine?
For Oxo thiamine, Upstream Products: Thiamine Disulfide Hydrate, Thiamine hydrochloride, Thiothiamine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Oxo thiamine (CAS 490-82-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1505217-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.