API Process Intermediates & Related Compounds

3-Chlorophthalide

Name: 3-Chlorophthalide
Brand: Zemixal
SKU: ZX-012078

Reference StandardIn stock

Buy 3-Chlorophthalide (CAS 6295-21-2) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Ships from India to 120+ countries.

Pack sizes

CAS number6295-21-2

FormulaC₈H₅ClO₂

Molar mass168.57 g/mol

Physical formSolid

Purity98.9%

InChIKeyGHZPDRVHYHFILK-UHFFFAOYSA-N

IUPAC name3-chloro-3H-2-benzofuran-1-one

About 3-Chlorophthalide

3-Chlorophthalide is part of the Zemixal API Process Intermediates & Related Compounds range. Key data (Reference Standard): CAS 6295-21-2, formula C8H5ClO2 and molar mass 168.57 g/mol. It is handled as a solid.

Where it is used

API route development
Impurity fate & purge studies
Analytical method development

Handling and storage

No GHS classification is recorded for this item, but handle it with normal laboratory care.

Order it in 10 mg, 25 mg, 50 mg and 100 mg packs or ask for a bulk quotation. Each lot travels with a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.

Reference standards for Olaparib

See every impurity, metabolite and related compound we list for this API.

Olaparib standards

Typical uses

API route development
Impurity fate & purge studies
Analytical method development

Applications

Pharmaceutical Manufacturing and QC Research Labs and Universities

Specifications and identifiers

Specifications of 3-Chlorophthalide
Product name	3-Chlorophthalide
Catalogue number	ZX-012078
CAS number	6295-21-2
IUPAC name	3-chloro-3H-2-benzofuran-1-one
Molecular formula	C₈H₅ClO₂
Molar mass	168.57 g/mol
Exact mass	167.9978
Grade	Reference Standard
Purity / assay	98.9%
Physical form	Solid
XLogP3	1.7
H-bond donors / acceptors	0 / 2
Topological polar surface area	26.3 Å²
InChIKey	GHZPDRVHYHFILK-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C(OC2=O)Cl
PubChem CID	95469
Synonyms	3-Chloro-1(3H)-isobenzofuranone, 3-Chloro-1,3-dihydro-1-isobenzofuranone, 3-chloroisobenzofuran-1(3H)-one, 3-chloro-2-benzofuran-1(3h)-one, 1(3H)-Isobenzofuranone, 3-chloro-, 3-chloro-1,3-dihydro-2-benzofuran-1-one, chlorophthalide

Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.

Safety and GHS hazards

No GHS classification is on file for this item. Handle it as an unknown laboratory chemical and request the SDS with your quotation.

Pack sizes

Pack sizes of 3-Chlorophthalide
10 mg	Quoted on request
25 mg	Quoted on request
50 mg	Quoted on request
100 mg	Quoted on request

Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.

Questions about 3-Chlorophthalide

Which CAS number identifies 3-Chlorophthalide?

3-Chlorophthalide is registered under CAS 6295-21-2. You may also see it listed as 3-Chloro-1(3H)-isobenzofuranone, 3-Chloro-1,3-dihydro-1-isobenzofuranone, 3-chloroisobenzofuran-1(3H)-one. Our catalogue number for this item is ZX-012078.

What are the formula and molar mass of 3-Chlorophthalide?

For 3-Chlorophthalide, its formula is C8H5ClO2 and its molar mass is 168.57 g/mol. The systematic (IUPAC) name is 3-chloro-3H-2-benzofuran-1-one. InChIKey GHZPDRVHYHFILK-UHFFFAOYSA-N lets you match it in any structure database.

How is 3-Chlorophthalide used in pharmaceutical QC?

3-Chlorophthalide is a characterised reference material linked to Olaparib. Laboratories use it to identify and quantify this impurity during method development and validation, stability work, batch release testing and regulatory submissions.

What grade and pack sizes are available for 3-Chlorophthalide?

This listing is Reference Standard grade with 98.9% purity. Standard packs are 10 mg, 25 mg, 50 mg, 100 mg. Larger quantities and custom packing can be quoted on request.

Which documents come with 3-Chlorophthalide?

Each lot ships with a batch certificate of analysis and a 16-section GHS safety data sheet. A typical COA or specification sheet can be shared with the quotation before you order.

Can Zemixal ship 3-Chlorophthalide to my country?

Yes. 3-Chlorophthalide ships worldwide by express courier, air cargo or sea freight, quoted on the Incoterm you prefer, with full export documents.

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