Fludarabine Phosphate EP Impurity B

Name: Fludarabine Phosphate EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-029033

About Fludarabine Phosphate EP Impurity B

Fludarabine Phosphate EP Impurity B (CAS 3373-53-3) is a pharmacopeial impurity of Fludarabine offered by Vaqora Chemicals. With the molecular formula C5H5N5O, it has a molar mass of 151.13 g/mol. Systematically, it is named 6-amino-1,7-dihydropurin-2-one. Common synonyms include Fludarabine Phosphate - Impurity B and Isoguanine.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Pharmaceutical QC and development laboratories use this impurity standard of Fludarabine to develop and validate HPLC methods, to set specification limits and to document impurity profiles in ANDA and DMF submissions. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Fludarabine Phosphate EP Impurity B 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

Related to Fludarabine

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

Fludarabine impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Fludarabine Phosphate EP Impurity B
Catalogue No.	VQ-029033
CAS Number	3373-53-3
IUPAC name	6-amino-1,7-dihydropurin-2-one
Molecular formula	C₅H₅N₅O
Molecular weight	151.13 g/mol
Exact mass	151.0494
Grade	Reference Standard
HSN code	38229090
InChIKey	DRAVOWXCEBXPTN-UHFFFAOYSA-N
SMILES	C1=NC2=NC(=O)NC(=C2N1)N
PubChem CID	76900

Physical properties
Physical form	Solid
LogP (XLogP3)	-1.7
H-bond donors / acceptors	3 / 2
TPSA	91.9 Å²
Synonyms	Fludarabine Phosphate - Impurity B, Isoguanine, 2-hydroxyadenine, 6-amino-7H-purin-2-ol, 6-Amino-1,3-dihydro-2H-purin-2-one, 2-oxoadenine, 2-Oxyadenine, 2-OH-Ade, 6-amino-3,7-dihydro-2H-purin-2-one, 2-Hydroxy-6-aminopurine, 6-Amino-2-hydroxypurine, 6-amino-9H-purin-2-ol

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation

Precautionary statements: P264, P264 + P265, P280, P302 + P352, P305 + P351 + P338, P321, P332 + P317, P337 + P317, P362 + P364

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 Fludarabine Phosphate EP Impurity B?

The CAS Registry Number of Fludarabine Phosphate EP Impurity B is 3373-53-3. It is also known as Fludarabine Phosphate - Impurity B, Isoguanine, 2-hydroxyadenine.

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

Fludarabine Phosphate EP Impurity B has the molecular formula C5H5N5O and a molecular weight of 151.13 g/mol. Its IUPAC name is 6-amino-1,7-dihydropurin-2-one.

What is Fludarabine Phosphate EP Impurity B used for?

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

We supply Fludarabine Phosphate 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 Fludarabine Phosphate EP Impurity B?

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

Yes. Fludarabine Phosphate 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.