T

Thiourea

IUPAC: thiourea

CH4N2S Organic Compounds CAS 62-56-6
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Quick Reference
Formula / NotationCH4N2S
CAS Number62-56-6
Molecular Weight76.12
Melting Point349 to 352 °F (NTP, 1992)
Boiling PointSublimes in vacuum at 302-320 °F (NTP, 1992)
Density1.405 at 68 °F (USCG, 1999) - Denser than water; will sink
Solubility10 to 50 mg/mL at 68 °F (NTP, 1992)
AppearanceThiourea appears as white or off-white crystals or powder. Sinks and mixes with water. (USCG, 1999)
Also Known AsThiocarbamide; 62-56-6; Isothiourea; Sulfourea; 2-Thiourea; Pseudothiourea; Thiuronium; Sulourea; 2-Thiopseudourea; Thiocarbonic acid diamide
CategoryOrganic Compounds

What is Thiourea?

Thiourea can cause cancer according to an independent committee of scientific and health experts.

Formula & Notation

CH4N2S

IUPAC Name: thiourea

Other Names / Synonyms: Thiocarbamide; 62-56-6; Isothiourea; Sulfourea; 2-Thiourea; Pseudothiourea; Thiuronium; Sulourea; 2-Thiopseudourea; Thiocarbonic acid diamide

Properties & Characteristics

Appearance: Thiourea appears as white or off-white crystals or powder. Sinks and mixes with water. (USCG, 1999). Molecular formula: CH4N2S. Molecular weight: 76.12 g/mol. Boiling point: Sublimes in vacuum at 302-320 °F (NTP, 1992). Melting point: 349 to 352 °F (NTP, 1992). Density: 1.405 at 68 °F (USCG, 1999) - Denser than water; will sink. Solubility: 10 to 50 mg/mL at 68 °F (NTP, 1992). Vapor pressure: 0.0028 [mmHg]. LogP: -0.8.

Physical Data

PropertyValue
Melting Point349 to 352 °F (NTP, 1992)
Boiling PointSublimes in vacuum at 302-320 °F (NTP, 1992)
Density1.405 at 68 °F (USCG, 1999) - Denser than water; will sink
Molecular Weight76.12
Solubility10 to 50 mg/mL at 68 °F (NTP, 1992)
AppearanceThiourea appears as white or off-white crystals or powder. Sinks and mixes with water. (USCG, 1999)

Uses & Applications

Used as an industrial feedstock, solvent, pharmaceutical intermediate, flavoring agent, or chemical building block.

Safety Information

Flammable or irritant. Many organic compounds are flammable liquids or vapours. Keep away from ignition sources. Consult SDS for specific hazard data.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Thiourea
Formula CH4N2S
CAS Number 62-56-6
Molecular Weight 76.12
Synonyms Thiocarbamide; 62-56-6; Isothiourea; Sulfourea; 2-Thiourea; Pseudothiourea; Thiuronium; Sulourea; 2-Thiopseudourea; Thiocarbonic acid diamide

Frequently Asked Questions

Thiourea can cause cancer according to an independent committee of scientific and health experts.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.