ChemicalBook >> CAS DataBase List >>4-Chloroformylphthalic anhydride

4-Chloroformylphthalic anhydride

4-Chloroformylphthalic anhydride structure

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

Molecular Weight:: 210.57

MDL Number:: MFCD00005924

MOL File:: 1204-28-0.mol

MSDS File:: SDS

Last updated:2025-07-24 18:13:43

Product description	Number	Pack Size	Price
Trimellitic anhydride chloride 98%	T68020	100g	$52.3
Trimellitic anhydride chloride 98%	T68020	500g	$272
Trimellitic Anhydride Chloride >98.0%(T)	T1079	25g	$32
Trimellitic Anhydride Chloride >98.0%(T)	T1079	100g	$74
Trimellitic Anhydride Chloride >98.0%(T)	T1079	500g	$222
More product size

Request For Quotation

4-Chloroformylphthalic anhydride Properties

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)
Indirect Additives used in Food Contact Substances	BENZOYL CHLORIDE-3,4-DICARBOXYLIC ANHYDRIDE
FDA 21 CFR	175.300; 175.320
FDA UNII	56231EU26X
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)
UNSPSC Code	12162002
NACRES	NA.23

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS05

Signal word

Danger

Hazard statements

H314

Precautionary statements

P260-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338-P363

Hazard Codes

Risk Statements

34-29

Safety Statements

26-36/37/39-45

RIDADR

UN 3261 8/PG 2

WGK Germany

10-21

TSCA

Yes

HazardClass

PackingGroup

HS Code

29173990

NFPA 704

	0
3		0

4-Chloroformylphthalic anhydride price More Price(22)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	T68020	Trimellitic anhydride chloride 98%	1204-28-0	100g	$52.3	2023-06-20	Buy
Sigma-Aldrich	T68020	Trimellitic anhydride chloride 98%	1204-28-0	500g	$272	2023-06-20	Buy
TCI Chemical	T1079	Trimellitic Anhydride Chloride >98.0%(T)	1204-28-0	25g	$32	2025-07-31	Buy
TCI Chemical	T1079	Trimellitic Anhydride Chloride >98.0%(T)	1204-28-0	100g	$74	2025-07-31	Buy
TCI Chemical	T1079	Trimellitic Anhydride Chloride >98.0%(T)	1204-28-0	500g	$222	2025-07-31	Buy

Product number	Packaging	Price	Buy
T68020	100g	$52.3	Buy
T68020	500g	$272	Buy
T1079	25g	$32	Buy
T1079	100g	$74	Buy
T1079	500g	$222	Buy

4-Chloroformylphthalic anhydride Chemical Properties,Uses,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 synthesis

Synthesis of 4-Chloroformylphthalic anhydride from Trimellitic Anhydride

4-Chloroformylphthalic anhydride Preparation Products And Raw materials

Raw materials

Trimellitic Anhydride Thionyl chloride Cyclohexane 4-Dimethylaminopyridine

Preparation Products

5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, 5,5'-[(1-methylethylidene)di-4,1-phenylene] ester 5-Iodoisobenzofuran-1,3-dione 5-(3-phenylprop-2-ynoyl)-1,3-dihydro-2-benzofuran-1,3-dione 1,4-dichlorophthalazine-6-carbonitrile 4-Butyloxycarbonyl-1,2-benzenedicarboxylic anhydride

p-phenylenebis(trimellitate anhydride))

1of2

4-Chloroformylphthalic anhydride Suppliers

Global( 260)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Hangzhou Verychem Science And Technology Co.Ltd	+86-86-57188162785 13606544505	lucy@verychem.com	China	1146	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718; +8613336195806	sales@capot.com	China	29734	60
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21620	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29852	58
Hubei xin bonus chemical co. LTD	86-13657291602	linda@hubeijusheng.com	CHINA	22963	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49975	58
Richest Group Ltd	18017061086	oled@richest-group.com	CHINA	5600	58
Chengdu Yuanda Chemical Co., Ltd	28-85356300 +8618980937689	sales@ydachem.com	CHINA	94	58
Hebei Yanxi Chemical Co., Ltd.	+8618531123677	faithe@yan-xi.com	China	5853	58
Shanghai Daeyeon Chemicals Co., Ltd	021-64478606 +8615900664856	daeyeon001@vip.163.com	China	2062	58

Supplier	Advantage
Hangzhou Verychem Science And Technology Co.Ltd	58
Capot Chemical Co.,Ltd.	60
Henan Tianfu Chemical Co.,Ltd.	55
career henan chemical co	58
Hubei xin bonus chemical co. LTD	58
CONIER CHEM AND PHARMA LIMITED	58
Richest Group Ltd	58
Chengdu Yuanda Chemical Co., Ltd	58
Hebei Yanxi Chemical Co., Ltd.	58
Shanghai Daeyeon Chemicals Co., Ltd	58

View Lastest Price from 4-Chloroformylphthalic anhydride manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-06-20	Trimellitic Anhydride Chloride 1204-28-0	US $0.00 / kg	1kg	0.99	1000kg	Hebei Yanxi Chemical Co., Ltd.
2023-07-31	4-Chloroformylphthalic anhydride 1204-28-0	US $1.00 / kg	20kg	99%	500tons	Hebei Linwo New Material Technology Co., LTD
2023-03-27	4-Chloroformylphthalic anhydride 1204-28-0	US $25.00 / KG	1KG	0.99	50000KG/MONTH	XINGTAI XINGJIU NEW MATERIAL TECHNOLOGY CO., LTD

Trimellitic Anhydride Chloride
1204-28-0
US $0.00 / kg
0.99
Hebei Yanxi Chemical Co., Ltd.

4-Chloroformylphthalic anhydride
1204-28-0
US $1.00 / kg
99%
Hebei Linwo New Material Technology Co., LTD

4-Chloroformylphthalic anhydride
1204-28-0
US $25.00 / KG
0.99
XINGTAI XINGJIU NEW MATERIAL TECHNOLOGY CO., LTD

4-Chloroformylphthalic anhydride Spectrum

4-Chloroformylphthalic anhydride(1204-28-0)¹HNMR 4-Chloroformylphthalic anhydride(1204-28-0)Raman 4-Chloroformylphthalic anhydride(1204-28-0)FT-IR 4-Chloroformylphthalic anhydride(1204-28-0)IR

1204-28-0(4-Chloroformylphthalic anhydride)Related 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

1of4

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