Tolbutamide EP Impurity C

Name: Tolbutamide EP Impurity C
Brand: Vaqora Chemicals
SKU: VQ-034317

About Tolbutamide EP Impurity C

Listed under CAS 1156-19-0, Tolbutamide EP Impurity C is a pharmacopeial impurity standard available from Vaqora Chemicals. With the molecular formula C14H21N3O3S, it has a molar mass of 311.4 g/mol. The IUPAC name is 1-(azepan-1-yl)-3-(4-methylphenyl)sulfonylurea. It is also known as Tolazamide or Tolbutamide - Impurity C.

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. It carries the GHS signal word “Danger” with 1 hazard statement. Review the Safety Data Sheet before use.

Pharmaceutical QC and development laboratories use this impurity standard of the parent drug substance to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. It is used across pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Tolbutamide EP Impurity C is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Pharmacopeial method verification
Impurity profiling
QC release testing
ANDA / DMF filings

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Tolbutamide EP Impurity C
Catalogue No.	VQ-034317
CAS Number	1156-19-0
IUPAC name	1-(azepan-1-yl)-3-(4-methylphenyl)sulfonylurea
Molecular formula	C₁₄H₂₁N₃O₃S
Molecular weight	311.4 g/mol
Exact mass	311.1304
Grade	Reference Standard
HSN code	38229090
InChIKey	OUDSBRTVNLOZBN-UHFFFAOYSA-N
SMILES	CC1=CC=C(C=C1)S(=O)(=O)NC(=O)NN2CCCCCC2
PubChem CID	5503

Physical properties
Physical form	Solid
LogP (XLogP3)	1.5
H-bond donors / acceptors	2 / 4
TPSA	86.9 Å²
Synonyms	Tolazamide, Tolbutamide - Impurity C, Norglycin, Tolazolamide, 1-(Hexahydro-1-azepinyl)-3-p-tolylsulfonylurea, 1-(Hexahydro-1H-azepin-1-yl)-3-(p-tolylsulfonyl)urea, N-(p-Toluenesulfonyl)-N'-hexamethyleniminourea, 4-(p-Tolylsulfonyl)-1,1-hexamethylenesemicarbazide, N-(azepan-1-ylcarbamoyl)-4-methylbenzenesulfonamide, Benzenesulfonamide, N-[[(hexahydro-1H-azepin-1-yl)amino]carbonyl]-4-methyl-, Urea, 1-(hexahydro-1H-azepin-1-yl)-3-(p-tolylsulfonyl)-, Benzenesulfonamide, N-(((hexahydro-1H-azepin-1-yl)amino)carbonyl)-4-methyl-

Safety & hazard information (GHS)

Health hazard

Signal word: Danger

Hazard statements

H370Causes damage to organs

Precautionary statements: P260, P264, P270, P308 + P316, P321, 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

Other grades of CAS 1156-19-0

Extra Pure

p-Toluenesulfonyl urea, extra pure >97%

CAS: 1156-19-0
Formula: C₁₄H₂₁N₃O₃S
MW: 311.4 g/mol

VQ-020067

Frequently asked questions

What is the CAS number of Tolbutamide EP Impurity C?

The CAS Registry Number of Tolbutamide EP Impurity C is 1156-19-0. It is also known as Tolazamide, Tolbutamide - Impurity C, Norglycin.

What is the molecular formula and molecular weight of Tolbutamide EP Impurity C?

Tolbutamide EP Impurity C has the molecular formula C14H21N3O3S and a molecular weight of 311.4 g/mol. Its IUPAC name is 1-(azepan-1-yl)-3-(4-methylphenyl)sulfonylurea.

Which grade and pack sizes of Tolbutamide EP Impurity C can I order?

We supply Tolbutamide EP Impurity C 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 Tolbutamide EP Impurity C?

Yes. Every lot of Tolbutamide EP Impurity C 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 Tolbutamide EP Impurity C be shipped internationally?

Yes. Tolbutamide EP Impurity C 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.