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Thiochrome

Also known as: NSC 56339, 2,7-Dimethyl-5H-pyrimido[4,5-d]thiazolo[3,2-a]pyrimidine-8-ethanol, 2-(2,7-Dimethyl-5H-pyrimido[4,5-d]thiazolo[3,2-a]pyrimidin-8-yl)ethanol, 2,7-Dimethylthiachromine-8-ethanol, 8-(2-Hydroxyethyl)-2,7-dimethyl-5H-pyrimido[4,5-d]thiazolo[3,2-a]pyrimidine, Dehydrothiamine

Thiochrome (CAS 92-35-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C12H14N4OS and a molecular weight of 262.33100 g/mol. Key properties include a melting point of 228.8°C, a boiling point of 462.6ºC at 760 mmHg, a density of 1.49g/cm3 and a flash point of 233.5ºC. 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.
92-35-3
Jingsj CID
J-5923-4
Molecular Formula
C12H14N4OS
Molecular Weight
262.33100 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point228.8°C
Boiling Point462.6ºC at 760 mmHg
Density1.49g/cm3
Flash Point233.5ºC
Exact Mass262.08900
PSA91.54000
LogP0.52090
Refractive Index1.752

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Activity & Biological Data

Additional Information[1]. Petrov SA, et al. Administration of Thiamine and Thiochrome Enhanced Reproduction of Chlorella, Drosophila melanogaster, and Danio. J Nutr Sci Vitaminol (Tokyo). 2016;62(1):6-11. [2]. Lazareno S, et al. Thiochrome enhances acetylcholine affinity at muscarinic M4 receptors: receptor subtype selectivity via cooperativity rather than affinity. Mol Pharmacol. 2004 Jan;65(1):257-66.

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of Thiochrome?

The CAS number of Thiochrome is 92-35-3.

What are the molecular formula and molecular weight of Thiochrome?

Thiochrome has molecular formula C12H14N4OS and molecular weight 262.33100 g/mol.

Is Thiochrome hazardous?

Thiochrome 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 Thiochrome?

For Thiochrome, Upstream Products: Thiamine hydrochloride, Thiamine hydrochloride, 3-chloro-5-hydroxy-2-pentanone.

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

Last updated:

How to cite: Jingsj. "Thiochrome (CAS 92-35-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5923-4 (accessed 2026-11-09).

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