Provenance

Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.

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Substance profile

Thioquinox

Thioquinox is a brownish yellow solid and is odorless.

CAS 93-75-4 C9H4N2S3 236.3 g/mol Warning

01 · Identification

What Thioquinox is

Thioquinox is a brownish yellow solid and is odorless. Its molecular formula is C9H4N2S3 and its molecular weight is 236.3 g/mol. It melts at 180 °C, is practically insoluble in water.

Under the GHS it carries the signal word Warning.

CAS number93-75-4
EC number202-272-8
Index number613-019-00-X
Molecular formulaC9H4N2S3
Molecular weight236.3 g/mol

Other names for Thioquinox

  • thioquinox (ISO)
  • 2-thio-1,3-dithiolo(4,5,b)quinoxaline

02 · GHS classification

Hazards and label elements

Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.

Signal wordWarning
Hazard statements assigned to Thioquinox
CodeHazard statement
H302 Harmful if swallowed.

Precautionary statements: P270, P301, P312, P330

03 · Physical and chemical properties

Thioquinox properties

Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.

Property Value Conditions Source
Melting point 180 °C (356 °F) HSDB
Solubility Slightly soluble in acetone, methanol. Anhydrous ethanol, -petroleum ether and kerosene HSDB
Insoluble in water HSDB
PRACTICALLY INSOL IN MOST ORG SOLVENTS HSDB
Vapor pressure 1e-7 mmHg at 20 °C HSDB
6e-8 mmHg Haz-Map

Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.

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