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CAS 99-63-8

Isophthaloyl Chloride

The meta isomer of terephthaloyl chloride, giving polymer chemists a route to amorphous, more soluble high-performance resins.

Dyes Polymer

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Full specification and impurity profile
Safety and technical data sheets
Samples for qualification
Commercial terms and lead time

Specification

Product data

CAS Number

99-63-8

Molecular Formula

C₈H₄Cl₂O₂

Molecular Weight

203.02 g/mol

Synonyms

Isophthalic acid dichloride; Benzene-1; 3-dicarboxylic acid dichloride; 1; 3-Benzenedicarbonyl chloride

To be suppliedAppearance, assay, impurity limits, packaging, UN number, hazard class, HS code and storage conditions are managed as product fields in WordPress. Add them per product under Products → edit → Specification / Logistics & Safety and they will appear in this table automatically.

Downstream molecules

What this product makes

Molecules our customers synthesise from this intermediate. Useful if you are searching by finished active rather than by raw material.

Poly(p-phenyleneisophthalamide)Polyether ketone ketoneAmorphous polyarylateDitophalVat Yellow 23Vat Orange 17Vat Yellow 26

Documentation

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About this product

Isophthaloyl Chloride is supplied to dyestuff and polymer manufacturers. It is produced by chlorination of the corresponding aromatic dicarboxylic acid with thionyl chloride made on site. Because we are backward integrated into thionyl chloride, quality and supply continuity for this product sit within our own control rather than a supplier’s.

Downstream use

Customers use this intermediate in the synthesis of the molecules listed above. If you are working towards one of them — or a structurally related target — our technical team can advise on route, stoichiometry and handling.

Ordering and documentation

Full specification, impurity profile, safety data sheet, technical data sheet and packaging options are issued on request. Samples are available for qualification. Tell us your target volume and specification and we will confirm lead time and commercial terms.