Zidovudine EP Impurity B

Name: Zidovudine EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-024048

About Zidovudine EP Impurity B

Vaqora Chemicals supplies Zidovudine EP Impurity B, a pharmacopeial impurity of Zidovudine registered under CAS number 25526-94-7. Formula C10H13ClN2O4, molecular weight 260.67 g/mol. The IUPAC name is 1-[(2R,4S,5R)-4-chloro-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione. Common synonyms include Zidovudine - Impurity B and Zidovudine USP 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.

As a characterised impurity of Zidovudine, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory 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.

Typical applications

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

Industries

Related to Zidovudine

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

Zidovudine impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Zidovudine EP Impurity B
Catalogue No.	VQ-024048
CAS Number	25526-94-7
IUPAC name	1-[(2R,4S,5R)-4-chloro-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione
Molecular formula	C₁₀H₁₃ClN₂O₄
Molecular weight	260.67 g/mol
Exact mass	260.0564
Grade	Reference Standard
HSN code	38229090
InChIKey	KQVJDKGDGLWBQT-XLPZGREQSA-N
SMILES	CC1=CN(C(=O)NC1=O)[C@H]2C[C@@H]([C@H](O2)CO)Cl
PubChem CID	72249

Physical properties
Physical form	Solid
H-bond donors / acceptors	2 / 4
TPSA	78.9 Å²
Synonyms	Zidovudine - Impurity B, Zidovudine USP Related Compound B, 3'-Chloro-3'-deoxythymidine, Thymidine, 3'-chloro-3'-deoxy-, 1-(3-Chloro-2,3-dideoxy-beta-D-erythro-pentofuranosyl)-5-methylpyrimidine-2,4(1H,3H)-dione, 3'-deoxy-3'-chlorothymidine, 3'-Desoxy-3'-chlor-thymidin, 3'-Cl-ddT, Zidovudine impurity B RS, 3'-chloro-3'-deoxy-thymidine, 3'-Chloro-2',3'-dideoxythymidine

Safety & hazard information (GHS)

Harmful / irritant

Health hazard

Signal word: Warning

Hazard statements

H302Harmful if swallowed
H373May causes damage to organs through prolonged or repeated exposure

Precautionary statements: P260, P264, P270, P301 + P317, P319, 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 Zidovudine EP Impurity B?

The CAS Registry Number of Zidovudine EP Impurity B is 25526-94-7. It is also known as Zidovudine - Impurity B, Zidovudine USP Related Compound B, 3'-Chloro-3'-deoxythymidine.

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

Zidovudine EP Impurity B has the molecular formula C10H13ClN2O4 and a molecular weight of 260.67 g/mol. Its IUPAC name is 1-[(2R,4S,5R)-4-chloro-5-(hydroxymethyl)oxolan-2-yl]-5-methylpyrimidine-2,4-dione.

What is Zidovudine EP Impurity B used for?

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

We supply Zidovudine 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 Zidovudine EP Impurity B?

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

Yes. Zidovudine 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.