ChemicalBook > CAS DataBase List > 4-Chlorophthalic anhydride
4-Chlorophthalic anhydride
- Product Name
- 4-Chlorophthalic anhydride
- CAS No.
- 118-45-6
- Chemical Name
- 4-Chlorophthalic anhydride
- Synonyms
- 5-Chloroisobenzofuran-1,3-dione;CHLOROPHTHALIC ANHYDRIDE;4-Chlorophthalic;Chlorophtalicanhydre,95%;4-Chlorophtalic anhydride;4-Chlorophthalic anhydrid;5-Chlorophthalic anhydride;ChlorophthalicAnhydride,4-;4-CHLOROPHTHALIC ANHYDRIDE;oroisobenzofuran-1,3-dione
- CBNumber
- CB2751645
- Molecular Formula
- C8H3ClO3
- Formula Weight
- 182.56
- MOL File
- 118-45-6.mol
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4-Chlorophthalic anhydride Property
- Melting point:
- 96°C
- Boiling point:
- 290 °C
- Density
- 1.594±0.06 g/cm3(Predicted)
- vapor pressure
- 0.058-0.058Pa at 25℃
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- solubility
- soluble in Toluene
- form
- Solid:particulate/powder
- color
- White to Almost white
- InChI
- InChI=1S/C8H3ClO3/c9-4-1-2-5-6(3-4)8(11)12-7(5)10/h1-3H
- InChIKey
- BTTRMCQEPDPCPA-UHFFFAOYSA-N
- SMILES
- C1(=O)C2=C(C=C(Cl)C=C2)C(=O)O1
- LogP
- 2.713
- CAS DataBase Reference
- 118-45-6(CAS DataBase Reference)
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Safety
- Risk Statements
- 36/37/38
- Safety Statements
- 26-36/37/39
- HS Code
- 2932990090
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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.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P310Immediately call a POISON CENTER or doctor/physician.
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N-Bromosuccinimide Price
TCI Chemical
- Product number
- C1328
- Product name
- 4-Chlorophthalic Anhydride
- Purity
- >98.0%(GC)(T)
- Packaging
- 5g
- Price
- $111
- Updated
- 2025/07/31
TCI Chemical
- Product number
- C1328
- Product name
- 4-Chlorophthalic Anhydride
- Purity
- >98.0%(GC)(T)
- Packaging
- 25g
- Price
- $440
- Updated
- 2025/07/31
TRC
- Product number
- C380573
- Product name
- 4-Chlorophthalic Anhydride
- Packaging
- 1g
- Price
- $55
- Updated
- 2021/12/16
Apolloscientific
- Product number
- OR322098
- Product name
- 4-Chlorophthalic anhydride
- Packaging
- 5g
- Price
- $122
- Updated
- 2021/12/16
AK Scientific
- Product number
- G528
- Product name
- 4-Chlorophthalic Anhydride
- Packaging
- 5g
- Price
- $14
- Updated
- 2021/12/16
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4-Chlorophthalic anhydride Chemical Properties,Usage,Production
Chemical Properties
4-Chlorophthalic anhydride has a melting point of around 99 °C. Like most acid anhydrides, it can hydrolyze in the presence of water.
Uses
4-chlorophthalic anhydride is an important monomer synthesis of polyimide and polyimide is considered to be the highest tolerance has been industrialized in the polymer and the shape and chemical stability of other materials can not like the outburst strength, wear resistance and extreme temperatures, excellent, has been widely used in aviation, aerospace, microelectronics and atom to the field of high technology. 4- of 4-chlorophthalic anhydride is mainly used in the synthesis of diphenyl ether dianhydride anhydride, two single and two double ether, thioether dianhydride anhydride two, two, and two amine polymerization ring was a series of polyimide engineering plastic with excellent performance. 4- of 4-chlorophthalic anhydride is not only the ideal raw material for the synthesis of various intermediates of polyimide, and can be used as a drug or pesticide.
Synthesis Reference(s)
Tetrahedron Letters, 23, p. 371, 1982 DOI: 10.1016/S0040-4039(00)86833-1
Preparation
A preparation method of 4-chlorophthalic anhydride uses monosodium phthalic acid as a raw material, uses water as a medium, uses a weak alkali solution as a pH regulator of a reaction system, and directly performs chlorination reaction with chlorine gas. The weak alkali solution is used as the pH regulator of the reaction system, which is beneficial to stabilizing the pH value of the reaction system, and can obtain high-yield 4-chlorophthalic acid monosodium coarse salt. The crude salt is desalted, dehydrated and closed to obtain a crude product of 4-chlorophthalic anhydride, which is purified by rectification to obtain high-purity 4-chlorophthalic anhydride.
4-Chlorophthalic anhydride Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 4-Chlorophthalic anhydride manufacturers
Hangzhou Verychem Science And Technology Co.Ltd
- Product
- 4-Chlorophthalic anhydride 118-45-6
- Price
- US $0.00-0.00/kg
- Min. Order
- 100kg
- Purity
- 0.99
- Supply Ability
- 100 tons
- Release date
- 2025-10-24
HEBEI SHENGSUAN CHEMICAL INDUSTRY CO.,LTD
- Product
- 4-Chlorophthalic anhydride 118-45-6
- Price
- US $990.00-800.00/ton
- Min. Order
- 1ton
- Purity
- 99%
- Supply Ability
- 5000
- Release date
- 2024-08-19
Asia Chem I and E (Jiangsu) Co Ltd
- Product
- 4-Chlorophthalic anhydride 118-45-6
- Price
- US $48.84/Kg/Drum
- Min. Order
- 25Kg/Drum
- Purity
- 99.00%HPLC
- Supply Ability
- 5tons/month
- Release date
- 2021-11-09
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