4-Chlorobenzoic acid
[CAS# 74-11-3]

Identification

• Classification: Chemical reagent >> Organic reagent >> Aromatic acid
• Name: 4-Chlorobenzoic acid
• Synonyms: PCBA
• Molecular Formula: C₇H₅ClO₂
• Molecular Weight: 156.57
• CAS Registry Number: 74-11-3
• EC Number: 200-805-9

Properties

• Melting point: 240-243 ºC
• Boiling point: 274-276 ºC (subl.)
• Flash point: 238 ºC
• Water solubility: soluble in hot water

Safety Data

• Hazard Symbols: Xn
• Risk Codes: R22;R36/37/38
• Safety Description: S26;S37/39

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Eye irritation	Eye Irrit.	2	H319
Acute toxicity	Acute Tox.	4	H302
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	3	H301
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411
Eye irritation	Eye Irrit.	2A	H319