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N-Methylthiourea

Also known as: 1-Methylthiourea, 1-Methyl-2-thiourea, Methylthiourea, METU, MTH, 1-methyl-2-thio-pseudoure

N-Methylthiourea (CAS 598-52-7) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C2H6N2S and a molecular weight of 90.147 g/mol. Key properties include a melting point of 118-121 °C(lit.), a boiling point of 141.1±23.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 39.1±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H300. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
598-52-7
Jingsj CID
J-1331833-7
Molecular Formula
C2H6N2S
Molecular Weight
90.147 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point118-121 °C(lit.)
Boiling Point141.1±23.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point39.1±22.6 °C
Exact Mass90.025169
PSA70.14000
LogP-0.71
Vapor Pressure6.0±0.3 mmHg at 25°C
Refractive Index1.565

GHS Safety & Compliance

Acute ToxicitySignal word: Danger
  • H300

Customs & Trade Information

HS Code2930909090
Summary2930909090. 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 N-Methylthiourea?

The CAS number of N-Methylthiourea is 598-52-7.

What are the molecular formula and molecular weight of N-Methylthiourea?

N-Methylthiourea has molecular formula C2H6N2S and molecular weight 90.147 g/mol.

Is N-Methylthiourea hazardous?

N-Methylthiourea has GHS signal word Danger and hazard statements H300.

What are the upstream and downstream products of N-Methylthiourea?

For N-Methylthiourea, Upstream Products: Methyl isothiocyanate, O-Ethyl thiocarbamate; Downstream Products: Thiocyanic acid, Ammonia, 5-Amino-1-methyl-1H-tetrazole.

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

Last updated:

How to cite: Jingsj. "N-Methylthiourea (CAS 598-52-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1331833-7 (accessed 2026-11-09).

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