2-Chloro-4-nitroaniline

Synonym(s):1-Amino-2-chloro-4-nitrobenzene;2-Chloro-4-nitroaniline;4-Amino-3-chloronitrobenzene

CAS NO.：121-87-9
Empirical Formula: C6H5ClN2O2
Molecular Weight: 172.57
MDL number: MFCD00007665
EINECS: 204-502-2
SAFETY DATA SHEET (SDS)
Update Date: 2026-01-13 11:22:46

What is 2-Chloro-4-nitroaniline?

Chemical properties

yellow crystalline powder

The Uses of 2-Chloro-4-nitroaniline

Intermediate in manufacture of dyes.

Synthesis Reference(s)

The Journal of Organic Chemistry, 51, p. 5039, 1986 DOI: 10.1021/jo00375a062

General Description

Yellow crystalline powder.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

2-Chloro-4-nitroaniline can react with oxidizing materials.

Hazard

Toxic by ingestion and inhalation.

Health Hazard

TOXIC; inhalation, ingestion or skin contact with material may cause severe injury or death. Contact with molten substance may cause severe burns to skin and eyes. Avoid any skin contact. Effects of contact or inhalation may be delayed. Fire may produce irritating, corrosive and/or toxic gases. Runoff from fire control or dilution water may be corrosive and/or toxic and cause pollution.

Fire Hazard

Combustible material: may burn but does not ignite readily. When heated, vapors may form explosive mixtures with air: indoors, outdoors and sewers explosion hazards. Contact with metals may evolve flammable hydrogen gas. Containers may explode when heated. Runoff may pollute waterways. Substance may be transported in a molten form.

Properties of 2-Chloro-4-nitroaniline

Melting point:	107 °C
Boiling point:	320℃
Density	1.5000
refractive index	1.6460 (estimate)
Flash point:	205 °C
storage temp.	Store below +30°C.
solubility	0.23g/l
form	powder to crystal
pka	-1.05±0.10(Predicted)
color	Light yellow to Yellow to Orange
PH	7 (0.23g/l, H2O, 20℃)
Water Solubility	0.23 g/L (20 ºC)
BRN	638657
Stability:	Stable. Incompatible with strong oxidizing agents, strong bases, strong acids.
CAS DataBase Reference	121-87-9(CAS DataBase Reference)
NIST Chemistry Reference	Benzenamine, 2-chloro-4-nitro-(121-87-9)
EPA Substance Registry System	2-Chloro-4-nitroaniline (121-87-9)

Safety information for 2-Chloro-4-nitroaniline

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07 Environment GHS09
GHS Hazard Statements	H302:Acute toxicity,oral H411:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes	P273:Avoid release to the environment.