Pirenzepine EP Impurity B

Name: Pirenzepine EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-035008

About Pirenzepine EP Impurity B

Pirenzepine EP Impurity B is a pharmacopeial impurity of Pirenzepine carrying the CAS registry number 885-70-1. Formula C12H9N3O, molecular weight 211.22 g/mol. Its systematic (IUPAC) name is 5,11-dihydropyrido[2,3-b][1,4]benzodiazepin-6-one. Alternative names: LS 75 and 11H-Pyrido[2,3-b][1,4]benzodiazepin-6(5H)-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. It carries the GHS signal word “Warning” with 2 hazard statements. Review the Safety Data Sheet before use.

This Pirenzepine impurity supports analytical method development and validation (AMV), batch release testing and the impurity sections of ANDA and DMF filings. It is used across pharmaceutical manufacturing and academic and industrial research.

We offer Pirenzepine EP Impurity B in 10 mg, 25 mg, 50 mg and 100 mg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

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

Industries

Related to Pirenzepine

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

Pirenzepine impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Pirenzepine EP Impurity B
Catalogue No.	VQ-035008
CAS Number	885-70-1
IUPAC name	5,11-dihydropyrido[2,3-b][1,4]benzodiazepin-6-one
Molecular formula	C₁₂H₉N₃O
Molecular weight	211.22 g/mol
Exact mass	211.0746
Grade	Reference Standard
HSN code	38229090
InChIKey	MIRBIZDDMSFTKY-UHFFFAOYSA-N
SMILES	C1=CC=C2C(=C1)C(=O)NC3=C(N2)N=CC=C3
PubChem CID	70169

Physical properties
Physical form	Solid
LogP (XLogP3)	1.6
H-bond donors / acceptors	2 / 3
TPSA	54 Å²
Synonyms	5,6-Dihydro-6-oxo-11H-pyrido-[2,3-b][1,4]benzodiazepine, Pirenzepine dihydrochloride monohydrate - Impurity B, 5,11-Dihydro-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one, LS 75, 5,11-Dihydro-6H-pyrido(2,3-b)(1,4)benzodiazepin-6-one, 5,6-Dihydro-6-oxo-11H-pyrido[2,3-b][1,4]benzodiazepine, 11H-Pyrido[2,3-b][1,4]benzodiazepin-6(5H)-one, 2,4,9-triazatricyclo[9.4.0.0^{3,8}]pentadeca-1(11),3(8),4,6,12,14-hexaen-10-one, 5,11-dihydro-6H-pyrido-[2,3-b][1,4]-benzodiazepi, 5,11-dihydro-6H-pyrido[2,3-b][1,4]benzodiazepin- 6-one, (6H)Pyrido[2,3-b][1,4]benzodiazepin-6-one, 5,11-dihydro-, 5,11-dihydro-6H-benzo[e]pyrido[3,2-b][1,4]diazepin-6-one

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H317May cause an allergic skin reaction
H319Causes serious eye irritation

Precautionary statements: P261, P264 + P265, P272, P280, P302 + P352, P305 + P351 + P338, P321, P333 + P317, P337 + P317, P362 + P364, 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 Pirenzepine EP Impurity B?

The CAS Registry Number of Pirenzepine EP Impurity B is 885-70-1. It is also known as 5,6-Dihydro-6-oxo-11H-pyrido-[2,3-b][1,4]benzodiazepine, Pirenzepine dihydrochloride monohydrate - Impurity B, 5,11-Dihydro-6H-pyrido[2,3-b][1,4]benzodiazepin-6-one.

What is the molecular formula and molecular weight of Pirenzepine EP Impurity B?

Pirenzepine EP Impurity B has the molecular formula C12H9N3O and a molecular weight of 211.22 g/mol. Its IUPAC name is 5,11-dihydropyrido[2,3-b][1,4]benzodiazepin-6-one.

What is Pirenzepine EP Impurity B used for?

Pirenzepine EP Impurity B is supplied as a characterised reference material related to Pirenzepine. 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 Pirenzepine EP Impurity B can I order?

We supply Pirenzepine EP Impurity B 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 Pirenzepine EP Impurity B?

Yes. Every lot of Pirenzepine EP Impurity B 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 Pirenzepine EP Impurity B be shipped internationally?

Yes. Pirenzepine EP Impurity B 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.