Thiamine hydrochloride
Also known as: Aneurine hydrochloride, Vitamin B1 hydrochloride, Thiamine chloride hydrochloride, Thiaminium chloride hydrochloride, Thiaminium dichloride, Thiamine HCl, 3-[(4-amino-2-methyl-5-pyrimidinyl)methyl]-5-(2-hydroxyethyl)-4-methylthiazolium chloride hydrochloride
Thiamine hydrochloride (CAS 67-03-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H17N4OS.ClH.Cl and a molecular weight of 337.268 g/mol. Key properties include a melting point of 246-254ºC, a density of 1.401 g/cm3 and a flash point of 100ºC. It is classified under GHS with signal word Danger and hazard statements H225 — Highly flammable liquid and vapour, H301 — Toxic if swallowed and H311 — Toxic in contact with skin. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 67-03-8
- Jingsj CID
- J-1495066-4
- Molecular Formula
- C12H17N4OSClHCl
- Molecular Weight
- 337.268 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 246-254ºC |
|---|---|
| Density | 1.401 g/cm3 |
| Flash Point | 100ºC |
| Exact Mass | 336.057831 |
| PSA | 104.15000 |
| Additional Property | H2O: 0.1 g/mL at 20 °C, clear, colorless | 1 g/mL |
GHS Safety & Compliance
- H225 — Highly flammable liquid and vapour
- H301 — Toxic if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
- H370 — Causes damage to organs
Activity & Biological Data
| Additional Information | [1]. Moulin M, et al. Analysis of Chlamydomonas thiamin metabolism in vivo reveals riboswitch plasticity. Proc Natl Acad Sci U S A. 2013 Sep 3;110(36):14622-7. |
|---|
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 Thiamine hydrochloride?
The CAS number of Thiamine hydrochloride is 67-03-8.
What are the molecular formula and molecular weight of Thiamine hydrochloride?
Thiamine hydrochloride has molecular formula C12H17N4OS.ClH.Cl and molecular weight 337.268 g/mol.
Is Thiamine hydrochloride hazardous?
Thiamine hydrochloride has GHS signal word Danger and hazard statements H225 — Highly flammable liquid and vapour; H301 — Toxic if swallowed; H311 — Toxic in contact with skin.
What are the upstream and downstream products of Thiamine hydrochloride?
For Thiamine hydrochloride, Upstream Products: 2-(4-Methyl-1,3-thiazol-5-yl)ethanol, 2-chloro-3-oxopentyl acetate, Formic Acid; Downstream Products: Oxo thiamine, Thiothiamine, 2,4-Dichlorophenoxyacetic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Thiamine hydrochloride (CAS 67-03-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1495066-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.