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4-Chloroformylphthalic anhydride

Product Name
4-Chloroformylphthalic anhydride
CAS No.
1204-28-0
Chemical Name
4-Chloroformylphthalic anhydride
Synonyms
TMAC;TRIMELLITIC ANHYDRIDE CHLORIDE;trimellitic;1,3-dioxo-1,3-dihydroisobenzofuran-5-carbonyl chloride;TrimeL;SKL1280;AKOS BBS-00003912;itic anhydride chL;TIMTEC-BB SBB003447;4-Chloroformylphthal
CBNumber
CB6124898
Molecular Formula
C9H3ClO4
Formula Weight
210.57
MOL File
1204-28-0.mol
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4-Chloroformylphthalic anhydride Property

Melting point:
66-68 °C(lit.)
Boiling point:
302.37°C (rough estimate)
Density 
1.5015 (rough estimate)
vapor pressure 
0.017Pa at 20℃
refractive index 
1.4571 (estimate)
storage temp. 
2-8°C
solubility 
soluble in Chloroform
form 
powder to lump
color 
White to Almost white
Water Solubility 
decomposes
Sensitive 
Moisture Sensitive
BRN 
610823
InChIKey
NJMOHBDCGXJLNJ-UHFFFAOYSA-N
CAS DataBase Reference
1204-28-0(CAS DataBase Reference)
NIST Chemistry Reference
Phthalic , 4-(chloroformyl)-,anhydride(1204-28-0)
EPA Substance Registry System
5-Isobenzofurancarbonyl chloride, 1,3-dihydro-1,3-dioxo- (1204-28-0)
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Safety

Hazard Codes 
C
Risk Statements 
34-29
Safety Statements 
26-36/37/39-45
RIDADR 
UN 3261 8/PG 2
WGK Germany 
3
F 
10-21
TSCA 
Yes
HazardClass 
8
PackingGroup 
II
HS Code 
29173990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H314Causes severe skin burns and eye damage

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P363Wash contaminated clothing before reuse.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
T68020
Product name
Trimellitic anhydride chloride
Purity
98%
Packaging
100g
Price
$52.3
Updated
2023/06/20
Sigma-Aldrich
Product number
T68020
Product name
Trimellitic anhydride chloride
Purity
98%
Packaging
500g
Price
$272
Updated
2023/06/20
TCI Chemical
Product number
T1079
Product name
Trimellitic Anhydride Chloride
Purity
>98.0%(T)
Packaging
25g
Price
$32
Updated
2025/07/31
TCI Chemical
Product number
T1079
Product name
Trimellitic Anhydride Chloride
Purity
>98.0%(T)
Packaging
100g
Price
$74
Updated
2025/07/31
TCI Chemical
Product number
T1079
Product name
Trimellitic Anhydride Chloride
Purity
>98.0%(T)
Packaging
500g
Price
$222
Updated
2025/07/31
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4-Chloroformylphthalic anhydride Chemical Properties,Usage,Production

Chemical Properties

white crystalline solid

Uses

Trimellitic Anhydride Chloride can be used as a reagent to synthesize optical polyamideimides.

Synthesis Reference(s)

The Journal of Organic Chemistry, 38, p. 2557, 1973 DOI: 10.1021/jo00954a034

Flammability and Explosibility

Not classified

Synthesis

552-30-7

1204-28-0

The general procedure for the synthesis of 1,3-dioxo-1,3-dihydroisobenzofuran-5-carbonyl chloride from trimellitic anhydride was as follows: trimellitic anhydride (50 g) and cyclohexane (45 mL) were added to a reaction flask containing 4-dimethylaminopyridine (0.05 g), and heated to 90 °C. Subsequently, thionyl chloride (37.2 g, molar ratio of trimellitic anhydride to thionyl chloride 1:1.2) was added slowly and the reaction mixture was refluxed for 6 hours. Upon completion of the reaction, it was confirmed that no gas was produced. At the end of the reaction, the remaining cyclohexane and excess thionyl chloride were removed by distillation at 90 °C and the solution was recovered at -0.085 MPa. Next, the 180-190 °C fraction was collected by vacuum distillation (vacuum of 750 mmHg) to give trimellitic anhydride chloride (47.6 g). After cooling, the product was a white solid with a melting point of 67.5~68.8 °C, and the HPLC purity was 99.5% in 86.9% yield.

References

[1] Patent: CN103626729, 2016, B. Location in patent: Paragraph 0026; 0027
[2] Patent: CN106748963, 2017, A. Location in patent: Paragraph 0048; 0049; 0050; 0051
[3] Patent: CN108341796, 2018, A. Location in patent: Paragraph 0016; 0017; 0018; 0019; 0020; 0021
[4] Patent: US10093929, 2018, B2. Location in patent: Page/Page column 2-3

4-Chloroformylphthalic anhydride Preparation Products And Raw materials

Raw materials

Preparation Products

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4-Chloroformylphthalic anhydride Suppliers

China 222 Europe 1 Germany 4 India 6 Japan 3 Poland 1 South Korea 1 Switzerland 2 United Kingdom 5 United States 21 USA 1 Global 267
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View Lastest Price from 4-Chloroformylphthalic anhydride manufacturers

Hebei Yanxi Chemical Co., Ltd.
Product
Trimellitic Anhydride Chloride 1204-28-0
Price
US $0.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
1000kg
Release date
2023-09-22
XINGTAI XINGJIU NEW MATERIAL TECHNOLOGY CO., LTD
Product
4-Chloroformylphthalic anhydride 1204-28-0
Price
US $25.00/KG
Min. Order
1KG
Purity
0.99
Supply Ability
50000KG/MONTH
Release date
2022-02-14
Hebei Zhanyao Biotechnology Co. Ltd
Product
4-Chloroformylphthalic Anhydride 1204-28-0
Price
US $10.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
20 tons
Release date
2021-10-09

1204-28-0, 4-Chloroformylphthalic anhydrideRelated Search:

Terephthaloyl chloride Chromium(VI) oxide Glutaric anhydride Trimellitic Anhydride Trifluoromethanesulfonic anhydride Benzenesulfonyl chloride 1,2,4-Benzenetricarboxylic acid Succinic anhydride Benzoyl chloride N-Acetylsulfanilyl chloride Caronic anhydride CIS-BUTENEDIOIC ANHYDRIDE 4-Nitrobenzenesulfonyl chloride Phthalic anhydride p-Toluoyl chloride Methyl 4-formylbenzoate 4-Nitrobenzoyl chloride Acetic anhydride

  • 1,3-Benzofurandione-5-carbonyl chloride
  • 1,3-dihydro-1,3-dioxo-5-isobenzofurancarbonylchlorid
  • 1,3-Dioxo-1,3-dihydro-2-benzofuran-5-carbonyl chloride
  • 4-(Chlorocarbonyl)phthalic anhydride
  • 4-(Chlorocarboxy)benzenedicarboxylic anhydride
  • 5-Isobenzofurancarbonyl chloride, 1,3-dihydro-1,3-dioxo-
  • 5-Isobenzofurancarbonylchloride,1,3-dihydro-1,3-dioxo-
  • Anhydrotrimellitic acid chloride
  • Phthalic anhydride, 4-(chloroformyl)-
  • trimellitic
  • Trimellitic acid anhydride 4-monoacid chloride
  • Trimellitic acid anhydride chloride
  • Trimellitic anhydride monochloride
  • 4-Chlorocarbonylbenzene-1,2-dicarboxylic anhydride
  • Trimellitic anhydride acid chloride,99%
  • TriMellitic anhydride chlori
  • 1,3-dioxo-1,3-dihydroisobenzofuran-5-carbonyl chloride
  • Trimellitic anhydride chloride,Benzene-1,2,4-tricarboxylic 1,2-anhydride 4-chloride
  • 4-Chloroformylphthal
  • 1,3-Dihydro-1,3-dioxo-2-benzofuran-5-carbonyl chloride, 1,3-Dihydro-1,3-dioxoisobenzofuran-5-carbonyl chloride, 4-(Chlorocarbonyl)phthalic acid anhydride, 5-(Chlorocarbonyl)-1,3-dihydro-1,3-dioxo-2-be nzofuran, Trimellitic acid anhydride chloride, Benzen
  • 1,3-Dihydro-1,3-dioxobenzo[c]furan-5-carbonyl chloride
  • 4-Chloroformylphthalic anhydride 98%
  • 7-Chloro-1,3-dioxo-1,3-dihydroisobenzofuran-5-carboxylic acid
  • 1,2,4-Benzenetricarboxylic acid 1,2-anhydride 4-chloride for synthesis
  • TriMellitic anhydride chloride 98%
  • BENZENE-1,2,4-TRICARBOXYLIC 1,2-ANHYDRIDE 4-CHLORIDE
  • 4-CHLOROFORMYLPHTHALIC ANHYDRIDE
  • AKOS BBS-00003912
  • 1,3-DIOXO-BENZO[C]FURAN-5-CARBOXYLIC ACID CHLORIDE
  • 1,2,4-BENZENETRICARBOXYLIC ANHYDRIDE ACID CHLORIDE
  • 1,2,4-BENZENE-TRICARBOXYLIC ACID ANHYDRIDE CHLORIDE
  • TRIMELLITIC ANHYDRIDE ACID CHLORIDE
  • TRIMELLITIC ANHYDRIDE CHLORIDE
  • TRIMELLITIC ANHYDRIDE MONO ACID CHLORIDE
  • TIMTEC-BB SBB003447
  • 1,2,4-Benzenetricarboxylic 1,2-anhydride 4-chloride~Phthalic anhydride 4-carbonyl chloride~TMAC
  • 1,2,4-benzenetricarboxylic 1,2-anhydride 4-chloride
  • phthalic anhydride 4-carbonyl chloride
  • BENZOYLCHLORIDE-3,4-DICARBOXYLICANHYDRIDE
  • 1,2,4-BENZENE-TRICARBOXYLIC ACID ANHYDRIDE CHLORIDE: 99.5%
  • TMAC
  • Anhydrous trimellitic chloride
  • 1,2,4-BENZENETRICARBOXYLIC ACID 1,2-ANHYDRIDE-4-CHLORIDE
  • 1,2-Benzene-dicarboxylic anhydride-4-formyl chloride
  • TRIMELLITICANHYDRIDECHLORIDE=1,2,4-BENZOLTRICARBONSREANHYDRIDCHLORID
  • 1,3-Dihydro-1,3-dioxo-5-isobenzofurancarbonyl chloride
  • 1,3-Dioxoisobenzofuran-5-carboxylic acid chloride
  • 4-Chlorocarbonyl-1,2-benzenedicarboxylic anhydride
  • Trimellitic anhydride chloride ,99%
  • itic anhydride chL
  • TrimeL
  • SKL1280
  • 1,3-dioxo-2-benzofuran-5-carbonyl chloride
  • Chlorinated trimellitic anhydride
  • Phthalic Anhydride-4-formyl Chloride
  • 1204-28-0
  • C18H10ClO11
  • C9H3ClO4