ChemicalBook > CAS DataBase List > 3-CHLOROPHTHALIC ANHYDRIDE

3-CHLOROPHTHALIC ANHYDRIDE

Product Name: 3-CHLOROPHTHALIC ANHYDRIDE
CAS No.: 117-21-5
Chemical Name: 3-CHLOROPHTHALIC ANHYDRIDE
Synonyms: Ktoyupd;3-CHLOROPHTHALIC;3-CHLOROPHTHALIC ANHYDRIDE;3 -Chlorophthalic anhydrid;3-CHLOROPHTHALIC ANHYDRIDE 98%;3-CHLOROPHTHALIC ACID ANHYDRIDE;4-Chloro-1,3-isobenzofurandione;4-chloro-2-benzofuran-1,3-dione;3-CHLOROPHTHALIC ANHYDRIDE, 95+%;3-Chlorophthalic anhydride, tech
CBNumber: CB0693567
Molecular Formula: C8H3ClO3
Formula Weight: 182.56
MOL File: 117-21-5.mol

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3-CHLOROPHTHALIC ANHYDRIDE Property

Melting point:: 123-126 °C
Boiling point:: 170°C(lit.)
Density: 1.594±0.06 g/cm3(Predicted)
vapor pressure: 0.02-0.08Pa at 25℃
storage temp.: Inert atmosphere,Room Temperature
form: Crystalline Powder and Chunks
color: White or pale yellow
InChI: InChI=1S/C8H3ClO3/c9-5-3-1-2-4-6(5)8(11)12-7(4)10/h1-3H
InChIKey: UERPUZBSSSAZJE-UHFFFAOYSA-N
SMILES: C1(=O)C2=C(C(Cl)=CC=C2)C(=O)O1
LogP: 2.713
CAS DataBase Reference: 117-21-5(CAS DataBase Reference)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 37/39-26
HS Code: 29173995

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word: Danger
Hazard statements: H318Causes serious eye damage
Precautionary statements: P280Wear protective gloves/protective clothing/eye protection/face protection.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: S663077
Product name: 3-CHLOROPHTHALIC ANHYDRIDE
Purity: Aldrich<sup>CPR</sup>
Packaging: 1 unit
Price: $185
Updated: 2025/07/31

Sigma-Aldrich

Product number: S663077
Product name: 3-CHLOROPHTHALIC ANHYDRIDE
Purity: AldrichCPR
Packaging: 50MG
Price: $179
Updated: 2024/03/01

TCI Chemical

Product number: C3489
Product name: 3-Chlorophthalic Anhydride
Purity: >98.0%(GC)
Packaging: 5g
Price: $35
Updated: 2025/07/31

TCI Chemical

Product number: C3489
Product name: 3-Chlorophthalic Anhydride
Purity: >98.0%(GC)
Packaging: 25g
Price: $137
Updated: 2025/07/31

TRC

Product number: C380578
Product name: 3-Chlorophthalic Anhydride
Packaging: 5g
Price: $75
Updated: 2021/12/16

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3-CHLOROPHTHALIC ANHYDRIDE Chemical Properties,Usage,Production

Chemical Properties

White or pale yellow crystalline powder and chunks

Uses

3-chlorophthalic anhydride is mainly used for the synthesis of polyimide engineering plastic properties. Also be used as drug or pesticide intermediates.

Synthesis Reference(s)

[1] Preparation of 3-chlorophthalic anhydride. CA1090814A

Synthesis

react phthalic anhydride with chlorine in the presence of a strong non-volatile Lewis acid at a controlled rate not to exceed 50% conversion of the phthalic anhydride reactant to obtain substantially pure 3-chlorophthalic anhydride at a temperature of about 200°C. to 240°C., and re-covering said substantially pure 3-chlorophthalic anhydride.[1]

3-CHLOROPHTHALIC ANHYDRIDE Preparation Products And Raw materials

Raw materials

Preparation Products

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3-CHLOROPHTHALIC ANHYDRIDE Suppliers

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View Lastest Price from 3-CHLOROPHTHALIC ANHYDRIDE manufacturers

Asia Chem I and E (Jiangsu) Co Ltd

Product: 3-Chlorophthalic anhydride 117-21-5
Price: US $48.85/Kg/Drum
Min. Order: 25Kg/Drum
Purity: 98.00%HPLC
Supply Ability: 5tons/month
Release date: 2021-11-09

Zhuozhou Wenxi import and Export Co., Ltd

Product: 3-CHLOROPHTHALIC ANHYDRIDE 117-21-5
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-08-11

Longyan Tianhua Biological Technology Co., Ltd

Product: 3-CHLOROPHTHALIC ANHYDRIDE 117-21-5
Price: US $40.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 1000kg
Release date: 2020-11-19

117-21-5, 3-CHLOROPHTHALIC ANHYDRIDERelated Search:

4-Chlorophthalide Methyl 2-chlorobenzoate Phthalic anhydride 4-CHLORO-2-METHYLBENZYL ALCOHOL 97 Methyl 3-chlorobenzoate 2-Chlorobenzoic acid 3,6-Dichlorophthalic anhydride Tetrachlorophthalic anhydride 3-CHLOROPHTHALIC ANHYDRIDE 7-Chlorophthalide 4-CHLOROPHTHALIC ANHYDRIDE 95+%,5-Chlorophthalic anhydride,4-CHLOROPHTHALIC ANHYDRIDE,CHLOROPHTHALIC ANHYDRIDE 3-Chloro-2-methylbenzoic acid 2-CHLORO-6-METHYLBENZALDEHYDE 2-CHLORO-6-METHYLBENZOIC ACID 3-CHLORO-O-XYLENE 3-Choro-2-formylbenzoic acid 2-CARBOXY-3-CHLORO-BENZENALDEHYDE CHLOROPHTHALIC ANHYDRIDE 10G [R]

4-chloro-1,3-dihydro-2-benzofuran-1,3-dione

4-Chloro-2-benzofuran-1,3-dione, 4-Chloroisobenzofuran-1,3-dione

3-CHLOROPHTHALIC ANHYDRIDE 98%

1,3-Isobenzofurandione, 4-chloro-

Ktoyupd

3-CHLOROPHTHALIC ACID ANHYDRIDE

3-CHLOROPHTHALIC ANHYDRIDE

4-Chloro-isobenzofuran-1,3-dione

3-Chlorophthalic anhydride, tech

3-CHLOROPHTHALIC ANHYDRIDE, 95+%

3-Chloro-1,2-benzenedicarboxylic anhydride

4-Chloro-1,3-isobenzofurandione

4-Chloroisobenzofuran-1,3-Dione,>98%

3-CHLOROPHTHALIC

TIANFUCHEM--High purity 117-21-5 3-CHLOROPHTHALIC ANHYDRIDE

4-chloro-2-benzofuran-1,3-dione

3-Chlorophthalic anhydride, tech grade

3-Chlorophthalic acid anhydride in Acetonitrile

4-Chloro-isobenzofuran-1,3-dione 99%

3 -Chlorophthalic anhydrid

117-21-5

C8H3CIO3

API Intermediate

Anhydride

Phthalic Acids, Esters and Derivatives

Acids and Derivatives

API intermediates