3,4-DIMETHYLPHENYL ISOCYANATE Property

Boiling point:

85 °C2 mm Hg(lit.)

Density 

1.051 g/mL at 25 °C(lit.)

refractive index 

n20/D 1.536(lit.)

Flash point:

198 °F

Water Solubility 

Hydrolyzes in water.

Sensitive 

Moisture Sensitive

BRN 

775149

CAS DataBase Reference

51163-27-0

Safety

Hazard Codes 

Xn

Risk Statements 

20/21/22-36/37/38

Safety Statements 

23-26-36

RIDADR 

UN 2206 6.1/PG 2

WGK Germany 

3

HazardClass 

6.1

PackingGroup 

III

HS Code 

2929100090

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H227Combustible liquid

H300Fatal if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H330Fatal if inhaled

H334May cause allergy or asthma symptoms or breathing difficulties if inhaled

H335May cause respiratory irritation

Precautionary statements

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P320Specific treatment is urgent (see … on this label).

P330Rinse mouth.

P405Store locked up.

3,4-DIMETHYLPHENYL ISOCYANATE Chemical Properties,Usage,Production

Uses

3,4-Dimethylphenyl isocyanate is used as a pharmaceutical intermediate.

Definition

ChEBI: An isocyanate that consists of phenyl isocyanate bearing two additional methyl substituents at positions 3 and 4.