Cetirizine EP Impurity A

Name: Cetirizine EP Impurity A
Brand: Vaqora Chemicals
SKU: VQ-006294

About Cetirizine EP Impurity A

Listed under CAS 303-26-4, Cetirizine EP Impurity A is a pharmacopeial impurity of Cetirizine available from Vaqora Chemicals. Its molecular formula is C17H19ClN2 and its molecular weight is 286.8 g/mol. The IUPAC name is 1-[(4-chlorophenyl)-phenylmethyl]piperazine. Alternative names: Norchlorcyclizine and 1-(p-Chloro-alpha-phenylbenzyl)piperazine.

The product is provided as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. It carries the GHS signal word “Warning” with 5 hazard statements. Review the Safety Data Sheet before use.

This Cetirizine 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.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. Stock is available for quick dispatch.

Typical applications

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

Industries

Related to Cetirizine

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

Cetirizine impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Cetirizine EP Impurity A
Catalogue No.	VQ-006294
CAS Number	303-26-4
Other CAS	894-56-4
IUPAC name	1-[(4-chlorophenyl)-phenylmethyl]piperazine
Molecular formula	C₁₇H₁₉ClN₂
Molecular weight	286.8 g/mol
Exact mass	286.1237
Grade	Reference Standard
HSN code	38229090
InChIKey	UZKBSZSTDQSMDR-UHFFFAOYSA-N
SMILES	C1CN(CCN1)C(C2=CC=CC=C2)C3=CC=C(C=C3)Cl
PubChem CID	9340

Physical properties
Physical form	Solid
LogP (XLogP3)	3.4
H-bond donors / acceptors	1 / 2
TPSA	15.3 Å²
Synonyms	Norchlorcyclizine, 1-(p-Chloro-alpha-phenylbenzyl)piperazine, 4-(4-Chlorobenzhydryl)piperazine, N-(4-Chlorobenzhydryl)piperazine, 1-[(4-Chlorophenyl)phenylmethyl]piperazine, Hydroxyzine EP Impurity A, Hydroxyzine USP Related Compound A, Levocetirizine EP Impurity A, 1-(4-Chlorobenzhydryl)piperazine, N-(p-Chlorobenzhydryl)piperazine, Piperazine, 1-[(4-chlorophenyl)phenylmethyl]-, Piperazine, 1-((4-chlorophenyl)phenylmethyl)-

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H361Suspected of damaging fertility or the unborn child

Precautionary statements: P203, P261, P264, P264 + P265, P270, P271, P280, P301 + P317, P302 + P352, P304 + P340, P305 + P351 + P338, P318, P319, P321, P330, P332 + P317, P337 + P317, P362 + P364, 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

Other grades of CAS 303-26-4

Pharma

1-(4-Chlorobenzhydryl)piperazine

CAS: 303-26-4
Formula: C₁₇H₁₉ClN₂
MW: 286.8 g/mol

VQ-012709

Frequently asked questions

What is the CAS number of Cetirizine EP Impurity A?

The CAS Registry Number of Cetirizine EP Impurity A is 303-26-4. It is also known as Norchlorcyclizine, 1-(p-Chloro-alpha-phenylbenzyl)piperazine, 4-(4-Chlorobenzhydryl)piperazine.

What is the molecular formula and molecular weight of Cetirizine EP Impurity A?

Cetirizine EP Impurity A has the molecular formula C17H19ClN2 and a molecular weight of 286.8 g/mol. Its IUPAC name is 1-[(4-chlorophenyl)-phenylmethyl]piperazine.

What is Cetirizine EP Impurity A used for?

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

We supply Cetirizine EP 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 Cetirizine EP Impurity A?

Yes. Every lot of Cetirizine EP 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 Cetirizine EP Impurity A be shipped internationally?

Yes. Cetirizine EP Impurity A 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.