4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one

Name: 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one
Brand: Vaqora Chemicals
SKU: VQ-037823

About 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one

Listed under CAS 4506-53-0, 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one is an impurity of Ketotifen available from Vaqora Chemicals. With the molecular formula C13H8OS, it has a molar mass of 212.27 g/mol. Systematically, it is named 6-thiatricyclo[8.4.0.03,7]tetradeca-1(14),3(7),4,8,10,12-hexaen-2-one.

The product is provided as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. Good laboratory practice and suitable PPE are recommended during handling.

Pharmaceutical QC and development laboratories use this impurity standard of Ketotifen to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Analytical method development
Method validation (AMV)
QC release testing
ANDA / DMF filings

Industries

Related to Ketotifen

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

Ketotifen impurities

Specifications & identifiers

Chemical identifiers
Product name	4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one
Catalogue No.	VQ-037823
CAS Number	4506-53-0
IUPAC name	6-thiatricyclo[8.4.0.03,7]tetradeca-1(14),3(7),4,8,10,12-hexaen-2-one
Molecular formula	C₁₃H₈OS
Molecular weight	212.27 g/mol
Exact mass	212.0296
Grade	Reference Standard
HSN code	38229090
InChIKey	AKYJPOPHGMQXHH-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C=CC3=C(C2=O)C=CS3
PubChem CID	4097274

Physical properties
Physical form	Solid
LogP (XLogP3)	3.6
H-bond donors / acceptors	0 / 2
TPSA	45.3 Å²

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 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one?

The CAS Registry Number of 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one is 4506-53-0.

What is the molecular formula and molecular weight of 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one?

4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one has the molecular formula C13H8OS and a molecular weight of 212.27 g/mol. Its IUPAC name is 6-thiatricyclo[8.4.0.03,7]tetradeca-1(14),3(7),4,8,10,12-hexaen-2-one.

What is 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one used for?

4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one is supplied as a characterised reference material related to Ketotifen. 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 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one can I order?

We supply 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one?

Yes. Every lot of 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one 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 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one be shipped internationally?

Yes. We export 4H-Benzo[4,5]cyclohepta[1,2-b]thiophen-4-one worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.