Zileuton - Impurity A | CAS 171370-49-3

Name: Zileuton - Impurity A
Brand: Vaqora Chemicals
SKU: VQ-028775

About Zileuton - Impurity A

Zileuton - Impurity A (CAS 171370-49-3) is an impurity of Zileuton offered by Vaqora Chemicals. Formula C11H12N2OS, molecular weight 220.29 g/mol. Its systematic (IUPAC) name is 1-(1-benzothiophen-2-yl)ethylurea. Common synonyms include Zileuton USP Related Compound A and Zileuton Related Compound A.

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. Good laboratory practice and suitable PPE are recommended during handling.

This Zileuton impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Zileuton - Impurity A 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 Zileuton

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

Zileuton impurities

Specifications & identifiers

Chemical identifiers
Product name	Zileuton - Impurity A
Catalogue No.	VQ-028775
CAS Number	171370-49-3
IUPAC name	1-(1-benzothiophen-2-yl)ethylurea
Molecular formula	C₁₁H₁₂N₂OS
Molecular weight	220.29 g/mol
Exact mass	220.067
Grade	Reference Standard
HSN code	38229090
InChIKey	CKVDCQYUEYONIA-UHFFFAOYSA-N
SMILES	CC(C1=CC2=CC=CC=C2S1)NC(=O)N
PubChem CID	10104880

Physical properties
Physical form	Solid
LogP (XLogP3)	1.9
H-bond donors / acceptors	2 / 2
TPSA	83.4 Å²
Synonyms	Zileuton USP Related Compound A, Zileuton Related Compound A, N-(1-Benzo(b)thien-2-ylethyl)urea, N-(1-Benzo(b)thien-2-ylethyl) urea, Urea, (1-benzo(b)thien-2-ylethyl)-, Urea, N-(1-benzo(b)thien-2-ylethyl)-, [1-(1-benzothiophen-2-yl)ethyl]urea, N-(1-Benzo-[b]thien-2-ylethyl)urea, 1-(1-(benzo[b]thiophen-2-yl)ethyl)urea, 1-[1-(1-Benzothiophen-2-yl)ethyl]urea

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 Zileuton - Impurity A?

The CAS Registry Number of Zileuton - Impurity A is 171370-49-3. It is also known as Zileuton USP Related Compound A, Zileuton Related Compound A, N-(1-Benzo(b)thien-2-ylethyl)urea.

What is the molecular formula and molecular weight of Zileuton - Impurity A?

Zileuton - Impurity A has the molecular formula C11H12N2OS and a molecular weight of 220.29 g/mol. Its IUPAC name is 1-(1-benzothiophen-2-yl)ethylurea.

What is Zileuton - Impurity A used for?

Zileuton - Impurity A 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 Zileuton - Impurity A can I order?

We supply Zileuton - Impurity A 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 Zileuton - Impurity A?

Yes. Every lot of Zileuton - Impurity A 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 Zileuton - Impurity A be shipped internationally?

Yes. We export Zileuton - Impurity A worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.