3-Chlorophenyl isocyanate

Synonym(s):3-Isocyanato chlorobenzene

CAS NO.：2909-38-8
Empirical Formula: C7H4ClNO
Molecular Weight: 153.57
MDL number: MFCD00002016
EINECS: 220-822-5
SAFETY DATA SHEET (SDS)
Update Date: 2025-09-25 17:15:13

What is 3-Chlorophenyl isocyanate?

Chemical properties

clear colourless to slightly yellow liquid

The Uses of 3-Chlorophenyl isocyanate

3-Chlorophenyl Isocyanate is an intermediate product in the manufacture of monuron, and m-chlorophenyl isocyanate (II). A useful research chemical.

The Uses of 3-Chlorophenyl isocyanate

3-Chlorophenyl isocyanate (3-isocyanato chlorobenzene) was used in the preparation of cis-4-[N-(3-chlorophenyl)carbamoloxyl]-2-butenyl-trimethylammoniumiodide.

Safety Profile

Poison by inhalation and ingestion. A flammable liquid when exposed to heat or flame. When heated to decomposition it emits toxic fumes of Cl-, CN-, and NOx. See also ESTERS and THIO CYANATES .

Properties of 3-Chlorophenyl isocyanate

Melting point:	-4 °C (lit.)
Boiling point:	113-114 °C/43 mmHg (lit.)
Density	1.26 g/mL at 25 °C (lit.)
refractive index	n20/D 1.559(lit.)
Flash point:	188 °F
storage temp.	0-10°C
solubility	Decomposes
form	Liquid
color	Clear colorless to slightly yellow
Odor	irritating odor
Water Solubility	Decomposes
Sensitive	Moisture Sensitive
BRN	742445
CAS DataBase Reference	2909-38-8(CAS DataBase Reference)
NIST Chemistry Reference	Benzene, 1-chloro-3-isocyanato-(2909-38-8)
EPA Substance Registry System	m-Chlorophenyl isocyanate (2909-38-8)

Safety information for 3-Chlorophenyl isocyanate

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05 Skull and Crossbones Acute Toxicity GHS06 Environment GHS09
GHS Hazard Statements	H314:Skin corrosion/irritation H317:Sensitisation, Skin H330:Acute toxicity,inhalation H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	P260:Do not breathe dust/fume/gas/mist/vapours/spray. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.