2,6-Diisocyanatotoluene
[CAS# 91-08-7]

Identification

• Classification: Pharmaceutical intermediate >> Heterocyclic compound intermediate >> Pyrimidine compound >> Alcohol
• Name: 2,6-Diisocyanatotoluene
• Synonyms: 2-Methyl-1,3-phenylene diisocyanate; 2-Methyl-m-phenylene isocyanate; Toluene 2,6-diisocyanate; Tolylene 2,6-diisocyanate; m-Tolylene diisocyanate
• Molecular Formula: C₉H₆N₂O₂
• Molecular Weight: 174.16
• CAS Registry Number: 91-08-7
• EC Number: 202-039-0

Properties

• Solubility: Very slightly soluble (0.21 g/L) (25 ºC), Calc.^*
• Density: 1.22 g/cm^3**
• Melting point: 85-110 ºC^***
• Boiling point: 246-247 ºC (1.22 Torr)^****
• Refractive index: 1.5708 (589.3 nm 20 ºC)^**
• Flash point: 110.5±29.3 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2017 ACD/Labs)

^** "Hazardous Substances Data Bank" data were obtained from the National Library of Medicine (US)

^*** Meckel, Rolf; DE 1151116 1963.

^**** Moutet, Andre; FR 1474836 1967.

Safety Data

• Hazard Symbols: GHS06;GHS08 Danger
• Hazard Statements: H351-H330-H335-H315-H319-H334-H317-H412

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Carcinogenicity	Carc.	2	H351
Eye irritation	Eye Irrit.	2	H319
Skin sensitization	Skin Sens.	1	H317
Respiratory sensitization	Resp. Sens.	1	H334
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Chronic hazardous to the aquatic environment	Aquatic Chronic	3	H412
Acute toxicity	Acute Tox.	2	H330
Acute toxicity	Acute Tox.	1	H330
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Specific target organ toxicity - single exposure	STOT SE	3	H336
Germ cell mutagenicity	Muta.	2	H341
Specific target organ toxicity - repeated exposure	STOT RE	1	H372
Specific target organ toxicity - single exposure	STOT SE	2	H371