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3-Chlorophthalic Anhydride

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Origin: China

Cas No: 117-21-5

Specification: 99%min

Min order Quantity: 1 /kg

Supply Ability: 100 mt/month

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CAS No.: 117-21-5 Formula: C8H3ClO3 Molecular Weight: 182.56100

Description

3-Chlorophthalic anhydride is a monochlorinated aromatic anhydride. It is an isomer of 4-chlorophthalic anhydride and a derivative of phthalic anhydride.

Basic Info

Chemical Name	3-Chlorophthalic Anhydride
Synonyms	3-CHLOROPHTHALIC ANHYDRIDE; 1,3-Isobenzofurandione, 4-chloro-; 4-chloro-2-benzofuran-1,3-dione; 4-Chloroisobenzofuran-1,3-dione;
CAS No.	117-21-5
Molecular Formula	C8H3ClO3
Molecular Weight	182.56100
PSA	43.37000
LogP	1.65060

Properties

Appearance & Physical State	White or pale yellow crystalline powder and chunks
Density	1.594 g/cm3
Boiling Point	317.2ºC at 760 mmHg
Melting Point	123-126ºC
Flash Point	152.2ºC
Refractive Index	1.626
Vapor Pressure	0.000392mmHg at 25°C

Safety Info

Safety Statements	37/39-26
HS Code	2942000000
Risk Statements	R36/37/38
Hazard Codes	Xi

Synthesis Route

phthalic anhydride→4-Chlorophthalic Anhydride+3-Chlorophthalic Anhydride
1-Chloronaphthalene→phthalic anhydride+3-Chlorophthalic Anhydride
1,5-DICHLORONAPHTHALENE→phthalic anhydride+3-Chlorophthalic Anhydride

Precursor

phthalic acid
3-Chlorophthalic acid
3-Nitrophthalic acid
3-Nitrophthalic anhydride

Downstream Product

8-chloro-1H-3,1-benzoxazine-2,4-dione
7-Chlorophthalide
4-Chlorophthalide
5-Chloroisatoic Anhydride

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