4,5-Dichlorophthalic anhydride

CAS 942-06-3C8H2Cl2O3Polymer Science

4,5-Dichlorophthalic anhydride (CAS: 942-06-3), a chemical compound with the formula C8H2Cl2O3 and a molecular weight of 217.01 g/mol, is primarily utilised as a monomer in polymer science and materials science. It serves as a key building block for synthesising various polymers and organic compounds. This product is supplied by Tech Serve Solutions with an assay of 98%.

Synonyms: C8H2Cl2O34,5-Dichloro-1,3-isobenzofurandione

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4,5-Dichlorophthalic anhydride (C8H2Cl2O3) — chemical structure, CAS 942-06-3; Materials Science, fine chemical supplied by Tech Serve Solutions

Anhydride MonomersMaterials ScienceMonomersPolymer Science

01 /Applications

Monomer for Polymer Synthesis

4,5-Dichlorophthalic anhydride acts as a crucial monomer in the creation of advanced polymers. Its structure allows for incorporation into polymer chains, modifying properties for specific material science applications.

Intermediate in Organic Synthesis

This anhydride serves as a versatile intermediate in organic chemistry. It can be employed in various reactions to synthesise more complex organic molecules and fine chemicals for research and industrial purposes.

Materials Science Research

The unique dichlorinated phthalic anhydride structure makes it valuable in materials science research. It can be used to develop new materials with specific thermal, electrical, or mechanical characteristics.

02 /Properties

Molecular weight	217.01
Empirical formula	C8H2Cl2O3
Assay	98%
Melting point	185-187 °C(lit.)

03 /Safety & handling

GHS hazard pictogram: Harmful / irritant (GHS07) — Harmful / irritant

Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust, fume, gas or vapours
P305IF IN EYES

Protective equipment	dust mask type N95 (US), Eyeshields, Gloves
Water hazard class (WGK, DE)	3
Hazard codes (EU)	Xi
Risk statements (R)	36/37/38
Safety statements (S)	26-37/39

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

942-06-3

MDL number

MFCD00075034

PubChem substance

24860254

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is 4,5-Dichlorophthalic anhydride used for?

4,5-Dichlorophthalic anhydride is primarily used as a monomer in polymer science and materials science, and as an intermediate in organic synthesis.

What is the CAS number and formula for 4,5-Dichlorophthalic anhydride?

The CAS number for 4,5-Dichlorophthalic anhydride is 942-06-3, and its molecular formula is C8H2Cl2O3.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies 4,5-Dichlorophthalic anhydride with a minimum assay of 98%. This is considered a technical/research grade, and TSS does not represent it as USP, BP, or EP grade.

How should 4,5-Dichlorophthalic anhydride be handled safely?

4,5-Dichlorophthalic anhydride is a Warning substance that causes skin irritation (H315), serious eye irritation (H319), and may cause respiratory irritation (H335). Appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves, should be worn. Ensure adequate ventilation.

How is 4,5-Dichlorophthalic anhydride packed and exported?

We offer flexible packaging options to meet diverse needs and expertly handle export documentation and logistics for global distribution.

How can I request a quote or sample?

To request a quote or a sample, please contact our sales team through the website or by telephone. Please specify the required quantity and your delivery details.