1,2,3-Trimethylisothiourea

Also known as: N,N'-Dimethylcarbamimidothioic acid methyl ester, methyl N,N'-dimethylcarbamimidothioate, N,N',S-trimethylisothiourea, methyl N,N'-dimethylimidothiocarbamate, NSC 157669, 1,2,3-Trimethyl-2-thiopseudourea

1,2,3-Trimethylisothiourea (CAS 2986-23-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C4H10N2S and a molecular weight of 118.20100 g/mol. Key properties include a boiling point of 159.8ºC at 760 mmHg, a density of 1g/cm3 and a flash point of 50.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 2986-23-4
Jingsj CID: J-1492347-8
Molecular Formula: C₄H₁₀N₂S
Molecular Weight: 118.20100 g/mol
Category: Organic Compounds
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	159.8ºC at 760 mmHg
Density	1g/cm3
Flash Point	50.5ºC
Exact Mass	118.05600
PSA	49.69000
LogP	0.94550
Vapor Pressure	2.45mmHg at 25°C
Refractive Index	1.494

Customs & Trade Information

HS Code	2930909090
Summary	2930909090. other organo-sulphur compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 1,2,3-Trimethylisothiourea?

The CAS number of 1,2,3-Trimethylisothiourea is 2986-23-4.

What are the molecular formula and molecular weight of 1,2,3-Trimethylisothiourea?

1,2,3-Trimethylisothiourea has molecular formula C4H10N2S and molecular weight 118.20100 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. "1,2,3-Trimethylisothiourea (CAS 2986-23-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1492347-8 (accessed 2026-11-09).

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