Hexachlorocyclopentadiene
[CAS# 77-47-4]

Identification

• Classification: Chemical pesticide >> Insecticide intermediate
• Name: Hexachlorocyclopentadiene
• Synonyms: 1,2,3,4,5,5-Hexachlorocyclopenta-1,3-diene
• Molecular Formula: C₅Cl₆
• Molecular Weight: 272.77
• CAS Registry Number: 77-47-4
• EC Number: 201-029-3

Properties

• Density: 1.702
• Melting point: -10 ºC
• Boiling point: 239 ºC (753 mmHg)
• Refractive index: 1.5644

Safety Data

• Hazard Symbols: GHS06;GHS05;GHS09 Danger
• Hazard Statements: H330-H311-H302-H314-H400-H410
• Safety Description: S23;S39;S45

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin corrosion	Skin Corr.	1B	H314
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Acute toxicity	Acute Tox.	4	H302
Skin sensitization	Skin Sens.	1	H317
Acute toxicity	Acute Tox.	2	H310
Acute toxicity	Acute Tox.	2	H330
Acute toxicity	Acute Tox.	1	H330
Serious eye damage	Eye Dam.	1	H318
Acute toxicity	Acute Tox.	3	H311
Acute toxicity	Acute Tox.	3	H301
Eye irritation	Eye Irrit.	2	H319
Specific target organ toxicity - repeated exposure	STOT RE	1	H372
Specific target organ toxicity - single exposure	STOT SE	3	H335

• Transport Information: UN 2646