Benzo[b]thien-2-yl Ketone

About Benzo[b]thien-2-yl Ketone

Benzo[b]thien-2-yl Ketone is an impurity of Zileuton carrying the CAS registry number 97978-07-9. Formula C17H10OS2, molecular weight 294.4 g/mol. The IUPAC name is bis(1-benzothiophen-2-yl)methanone. Common synonyms include 2-(Benzo[b]thien-2-oyl)benzo[b]thiophene and 2-(Benzo(b)thien-2-oyl)benzo(b)thiophene.

It is supplied as a solid. Store the standard in its sealed vial, protected from light and moisture, and follow the storage condition printed on the COA. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

This Zileuton impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

We offer Benzo[b]thien-2-yl Ketone in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Zileuton

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

Zileuton impurities

Specifications & identifiers

Chemical identifiers
Product name	Benzo[b]thien-2-yl Ketone
Catalogue No.	VQ-028776
CAS Number	97978-07-9
IUPAC name	bis(1-benzothiophen-2-yl)methanone
Molecular formula	C₁₇H₁₀OS₂
Molecular weight	294.4 g/mol
Exact mass	294.0173
Grade	Reference Standard
HSN code	38229090
InChIKey	XGEOFOPAAWHTSM-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C=C(S2)C(=O)C3=CC4=CC=CC=C4S3
PubChem CID	5330534

Physical properties
Physical form	Solid
LogP (XLogP3)	6
H-bond donors / acceptors	0 / 3
TPSA	73.6 Å²
Synonyms	2-(Benzo[b]thien-2-oyl)benzo[b]thiophene, 2-(Benzo(b)thien-2-oyl)benzo(b)thiophene, Methanone, bis(benzo[b]thien-2-yl)-, Bis(benzo(b)thien-2-yl)methanone, Bis(benzo[b]thiophen-2-yl)methanone, Methanone, bis(benzo(b)thien-2-yl)-, Bis(1H-2-indolyl)methanone 18

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H315Causes skin irritation
H317May cause an allergic skin reaction
H319Causes serious eye irritation
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H335May cause respiratory irritation

Precautionary statements: P233, P260, P261, P264, P264 + P265, P271, P272, P280, P284, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P333 + P317, P337 + P317, P342 + P316, P362 + P364, P403, 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 Benzo[b]thien-2-yl Ketone?

The CAS Registry Number of Benzo[b]thien-2-yl Ketone is 97978-07-9. It is also known as 2-(Benzo[b]thien-2-oyl)benzo[b]thiophene, 2-(Benzo(b)thien-2-oyl)benzo(b)thiophene, Methanone, bis(benzo[b]thien-2-yl)-.

What is the molecular formula and molecular weight of Benzo[b]thien-2-yl Ketone?

Benzo[b]thien-2-yl Ketone has the molecular formula C17H10OS2 and a molecular weight of 294.4 g/mol. Its IUPAC name is bis(1-benzothiophen-2-yl)methanone.

What is Benzo[b]thien-2-yl Ketone used for?

Benzo[b]thien-2-yl Ketone is supplied as a characterised reference material related to Zileuton. 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 Benzo[b]thien-2-yl Ketone can I order?

We supply Benzo[b]thien-2-yl Ketone 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 Benzo[b]thien-2-yl Ketone?

Yes. Every lot of Benzo[b]thien-2-yl Ketone 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 Benzo[b]thien-2-yl Ketone be shipped internationally?

Yes. Benzo[b]thien-2-yl Ketone 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.