3-Chloro-1,2-benzisothiazole

Name: 3-Chloro-1,2-benzisothiazole
Brand: Vaqora Chemicals
SKU: VQ-013015

About 3-Chloro-1,2-benzisothiazole

Listed under CAS 7716-66-7, 3-Chloro-1,2-benzisothiazole is a process intermediate or related compound of Lurasidone available from Vaqora Chemicals. Formula C7H4ClNS, molecular weight 169.63 g/mol. Its systematic (IUPAC) name is 3-chloro-1,2-benzothiazole. Common synonyms include 3-Chlorobenzo[d]isothiazole and 1,2-Benzisothiazole, 3-chloro-.

The product is provided as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Process chemists and analysts use it when developing synthetic routes to Lurasidone, tracking process-related impurities and validating analytical methods. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies 3-Chloro-1,2-benzisothiazole in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. Stock is available for quick dispatch.

Typical applications

API route development
Impurity fate & purge studies
Analytical method development

Industries

Related to Lurasidone

View every impurity, metabolite and intermediate we list for Lurasidone.

Lurasidone impurities

Specifications & identifiers

Chemical identifiers
Product name	3-Chloro-1,2-benzisothiazole
Catalogue No.	VQ-013015
CAS Number	7716-66-7
IUPAC name	3-chloro-1,2-benzothiazole
Molecular formula	C₇H₄ClNS
Molecular weight	169.63 g/mol
Exact mass	168.9753
Grade	Reference Standard
HSN code	2933
InChIKey	BCPVKLRBQLRWDQ-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C(=NS2)Cl
PubChem CID	598190

Physical properties
Physical form	Solid
LogP (XLogP3)	3.3
H-bond donors / acceptors	0 / 2
TPSA	41.1 Å²
Synonyms	3-Chlorobenzo[d]isothiazole, 3-Chloro-1,2-benzisothiazole, 1,2-Benzisothiazole, 3-chloro-, 3-Chloro-benzo[d]isothiazole, 3-Chlorobenzo[d]isothia-zole, 3-Chloro-1,2-benzoisothiazole, 3-chloro-(1,2-benzisothiazole), 3-Chloro-1,2-benzisothiazole, 99%

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 3-Chloro-1,2-benzisothiazole?

The CAS Registry Number of 3-Chloro-1,2-benzisothiazole is 7716-66-7. It is also known as 3-Chlorobenzo[d]isothiazole, 3-Chloro-1,2-benzisothiazole, 1,2-Benzisothiazole, 3-chloro-.

What is the molecular formula and molecular weight of 3-Chloro-1,2-benzisothiazole?

3-Chloro-1,2-benzisothiazole has the molecular formula C7H4ClNS and a molecular weight of 169.63 g/mol. Its IUPAC name is 3-chloro-1,2-benzothiazole.

What is 3-Chloro-1,2-benzisothiazole used for?

3-Chloro-1,2-benzisothiazole is supplied as a characterised reference material related to Lurasidone. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of 3-Chloro-1,2-benzisothiazole can I order?

We supply 3-Chloro-1,2-benzisothiazole in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg, 250 mg, 500 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 3-Chloro-1,2-benzisothiazole?

Yes. Every lot of 3-Chloro-1,2-benzisothiazole 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 3-Chloro-1,2-benzisothiazole be shipped internationally?

Yes. 3-Chloro-1,2-benzisothiazole 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.