Praziquantel EP Impurity B

Name: Praziquantel EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-023533

About Praziquantel EP Impurity B

Listed under CAS 125273-86-1, Praziquantel EP Impurity B is a pharmacopeial impurity of Praziquantel available from Vaqora Chemicals. Its molecular formula is C19H22N2O2 and its molecular weight is 310.4 g/mol. Systematically, it is named 2-(cyclohexanecarbonyl)-6,7-dihydro-3H-pyrazino[2,1-a]isoquinolin-4-one. It is also known as Praziquantel - Impurity B or Praziquantel Related Compound B.

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 “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Pharmaceutical QC and development laboratories use this impurity standard of Praziquantel to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies Praziquantel EP Impurity B in 10 mg, 25 mg, 50 mg and 100 mg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

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

Industries

Related to Praziquantel

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

Praziquantel impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Praziquantel EP Impurity B
Catalogue No.	VQ-023533
CAS Number	125273-86-1
IUPAC name	2-(cyclohexanecarbonyl)-6,7-dihydro-3H-pyrazino[2,1-a]isoquinolin-4-one
Molecular formula	C₁₉H₂₂N₂O₂
Molecular weight	310.4 g/mol
Exact mass	310.1681
Grade	Reference Standard
HSN code	38229090
InChIKey	RAZNCTHEBQFYML-UHFFFAOYSA-N
SMILES	C1CCC(CC1)C(=O)N2CC(=O)N3CCC4=CC=CC=C4C3=C2
PubChem CID	20345828

Physical properties
Physical form	Solid
LogP (XLogP3)	2.8
H-bond donors / acceptors	0 / 2
TPSA	40.6 Å²
Synonyms	Praziquantel - Impurity B, Praziquantel Related Compound B, Didehydro praziquantel, 2-(Cyclohexylcarbonyl)-2,3,6,7-tetrahydro-4H-pyrazino (2,1-a)isoquinolin-4-one, 2-(Cyclohexylcarbonyl)-2,3,6,7-tetrahydro-4H-pyrazino(2,1-a)isoquinolin-4-one, 2-(Cyclohexylcarbonyl)-2,3,6,7-tetrahydro-4H-pyrazino[2,1-a]isoquinolin-4-one, 4H-Pyrazino(2,1-a)isoquinolin-4-one, 2-(cyclohexylcarbonyl)-2,3,6,7-tetrahydro-, 4H-Pyrazino[2,1-a]isoquinolin-4-one, 2-(cyclohexylcarbonyl)-2,3,6,7-tetrahydro-, 2-(cyclohexylcarbonyl)-2,3,6,7-tetrahydro-4h-pyrazino [2,1-a]isoquinolin-4-one, Praziquantel specified impurity B, 1,2-Deshydro Praziquantel, 2-(cyclohexanecarbonyl)-6,7-dihydro-2H-pyrazino[2,1-a]isoquinolin-4(3H)-one

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H412Harmful to aquatic life with long lasting effects

Precautionary statements: P264, P270, P273, P301 + P317, P330, 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 Praziquantel EP Impurity B?

The CAS Registry Number of Praziquantel EP Impurity B is 125273-86-1. It is also known as Praziquantel - Impurity B, Praziquantel Related Compound B, Didehydro praziquantel.

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

Praziquantel EP Impurity B has the molecular formula C19H22N2O2 and a molecular weight of 310.4 g/mol. Its IUPAC name is 2-(cyclohexanecarbonyl)-6,7-dihydro-3H-pyrazino[2,1-a]isoquinolin-4-one.

What is Praziquantel EP Impurity B used for?

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

We supply Praziquantel 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 Praziquantel EP Impurity B?

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

Yes. Praziquantel 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.