3-(Hydroxymethyl)-5-(methylthio)-1,3,4-thiadiazole-2(3H)-thione

Also known as: 3-(hydroxymethyl)-5-(methylsulfanyl)-2,3-dihydro-1,3,4-thiadiazole-2-thione, 1,3,4-Thiadiazole-2(3H)-thione, 3-(hydroxymethyl)-5-(methylthio)-, 3-(hydroxymethyl)-5-(methylthio)-1,3,4-thiadiazoline-2-thione, 3-(hydroxymethyl)-5-methylsulfanyl-1,3,4-thiadiazole-2-thione, 3-hydroxymethyl-5-methylsulfanyl-3H-[1,3,4]thiadiazole-2-thione, (5-methylthio-2-thioxo-1,3,4-thiadiazolin-3-yl)methan-1-ol, HMS566M03

3-(Hydroxymethyl)-5-(methylthio)-1,3,4-thiadiazole-2(3H)-thione (CAS 90567-39-8) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C4H6N2OS3 and a molecular weight of 194.29800 g/mol. Key properties include a melting point of 72ºC, a boiling point of 306.9ºC at 760mmHg, a density of 1.64g/cm3 and a flash point of 139.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 90567-39-8
Jingsj CID: J-1516956-9
Molecular Formula: C₄H₆N₂OS₃
Molecular Weight: 194.29800 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	72ºC
Boiling Point	306.9ºC at 760mmHg
Density	1.64g/cm3
Flash Point	139.4ºC
Exact Mass	193.96400
PSA	123.68000
LogP	1.34580
Refractive Index	1.771

Customs & Trade Information

HS Code	2934999090
Summary	2934999090. 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 3-(Hydroxymethyl)-5-(methylthio)-1,3,4-thiadiazole-2(3H)-thione?

The CAS number of 3-(Hydroxymethyl)-5-(methylthio)-1,3,4-thiadiazole-2(3H)-thione is 90567-39-8.

What are the molecular formula and molecular weight of 3-(Hydroxymethyl)-5-(methylthio)-1,3,4-thiadiazole-2(3H)-thione?

3-(Hydroxymethyl)-5-(methylthio)-1,3,4-thiadiazole-2(3H)-thione has molecular formula C4H6N2OS3 and molecular weight 194.29800 g/mol.

What are the upstream and downstream products of 3-(Hydroxymethyl)-5-(methylthio)-1,3,4-thiadiazole-2(3H)-thione?

For 3-(Hydroxymethyl)-5-(methylthio)-1,3,4-thiadiazole-2(3H)-thione, Upstream Products: Formaldehyde, 5-(Methylthio)-1,3,4-thiadiazole-2-thiol.

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. "3-(Hydroxymethyl)-5-(methylthio)-1,3,4-thiadiazole-2(3H)-thione (CAS 90567-39-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1516956-9 (accessed 2026-11-09).

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