4,5-Dichlorophthalic anhydride, 98%

Name: 4,5-Dichlorophthalic anhydride, 98%
Brand: Vaqora Chemicals
SKU: VQ-019001

About 4,5-Dichlorophthalic anhydride, 98%

4,5-Dichlorophthalic anhydride (CAS 942-06-3) is a monomer offered by Vaqora Chemicals at a purity of 98%. Formula C8H2Cl2O3, molecular weight 217.0 g/mol. Systematically, it is named 5,6-dichloro-2-benzofuran-1,3-dione. Alternative names: 4,5-Dichlorophthalic anhydride 98% and 5,6-dichloroisobenzofuran-1,3-dione.

The material typically appears as white to off-white powder or crystals. Key physical data: a melting point of 185-187 °C. Keep the container tightly sealed and store it in a cool, dry area. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for polymerisation, crosslinking and curing and adhesives and coatings. Our customers for this product work in polymers and plastics and paints and coatings.

Available in 1 g, 5 g and 25 g packs, 4,5-Dichlorophthalic anhydride is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Polymerisation
Crosslinking & curing
Adhesives & coatings

Industries

Specifications & identifiers

Chemical identifiers
Product name	4,5-Dichlorophthalic anhydride, 98%
Catalogue No.	VQ-019001
CAS Number	942-06-3
IUPAC name	5,6-dichloro-2-benzofuran-1,3-dione
Molecular formula	C₈H₂Cl₂O₃
Molecular weight	217 g/mol
Exact mass	215.9381
Purity / assay	98%
HSN code	29420090
InChIKey	ULSOWUBMELTORB-UHFFFAOYSA-N
SMILES	C1=C2C(=CC(=C1Cl)Cl)C(=O)OC2=O
PubChem CID	70334

Physical properties
Physical form	Crystalline
Appearance	White to off-white powder or crystals
Melting point	185-187 °C
LogP (XLogP3)	2.5
H-bond donors / acceptors	0 / 3
TPSA	43.4 Å²
Synonyms	4,5-Dichlorophthalic anhydride 98%, 4,5-Dichlorophthalic anhydride, 5,6-dichloroisobenzofuran-1,3-dione, 1,3-Isobenzofurandione, 5,6-dichloro-, 4,5-Dichlorophthalicanhydride, 5,6-Dichloro-1,3-Dihydro-2-Benzofuran-1,3-Dione, 4.5-dichlorophthalic anhydride, 4,5-Dichlorophthalic Acid, Anhydride, 4,5-Dichlorophthalic anhydride, 98%, 5,6-Dichloro-2-benzofuran-1,3-dione #

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 4,5-Dichlorophthalic anhydride, 98%?

The CAS Registry Number of 4,5-Dichlorophthalic anhydride, 98% is 942-06-3. It is also known as 4,5-Dichlorophthalic anhydride 98%, 4,5-Dichlorophthalic anhydride, 5,6-dichloroisobenzofuran-1,3-dione.

What is the molecular formula and molecular weight of 4,5-Dichlorophthalic anhydride, 98%?

4,5-Dichlorophthalic anhydride, 98% has the molecular formula C8H2Cl2O3 and a molecular weight of 217 g/mol. Its IUPAC name is 5,6-dichloro-2-benzofuran-1,3-dione.

Which grade and pack sizes of 4,5-Dichlorophthalic anhydride, 98% can I order?

We supply 4,5-Dichlorophthalic anhydride, 98% in (98%) grade, in 1 g, 5 g, 25 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 4,5-Dichlorophthalic anhydride, 98%?

Yes. Every lot of 4,5-Dichlorophthalic anhydride, 98% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 4,5-Dichlorophthalic anhydride, 98% be shipped internationally?

Yes. 4,5-Dichlorophthalic anhydride, 98% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.