Flucytosine EP Impurity B

Name: Flucytosine EP Impurity B
Brand: Vaqora Chemicals
SKU: VQ-022679

About Flucytosine EP Impurity B

Vaqora Chemicals supplies Flucytosine EP Impurity B, a pharmacopeial impurity of Fluorouracil registered under CAS number 56177-80-1. With the molecular formula C6H7FN2O2, it has a molar mass of 158.13 g/mol. Systematically, it is named 2-ethoxy-5-fluoro-1H-pyrimidin-6-one. It is also known as Fluorouracil EP Impurity F or Ethoxy-5-fluoro-4(3H)-pyrimidinone.

It is supplied as a solid. Reference materials should be stored sealed and away from light and moisture, as specified on the accompanying COA. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

As a characterised impurity of Fluorouracil, it is used for analytical method development, method validation (AMV) and routine quality-control testing, and it supports ANDA and DMF regulatory filings. Buyers come mainly from pharmaceutical manufacturing and academic and industrial research.

Available in 10 mg, 25 mg, 50 mg and 100 mg packs, Flucytosine 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 Fluorouracil

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

Fluorouracil impurities

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Flucytosine EP Impurity B
Catalogue No.	VQ-022679
CAS Number	56177-80-1
IUPAC name	2-ethoxy-5-fluoro-1H-pyrimidin-6-one
Molecular formula	C₆H₇FN₂O₂
Molecular weight	158.13 g/mol
Exact mass	158.0492
Grade	Reference Standard
HSN code	38229090
InChIKey	XREDGJFKPWBNRQ-UHFFFAOYSA-N
SMILES	CCOC1=NC=C(C(=O)N1)F
PubChem CID	92041

Physical properties
Physical form	Solid
LogP (XLogP3)	0.4
H-bond donors / acceptors	1 / 4
TPSA	50.7 Å²
Synonyms	Fluorouracil EP Impurity F, Ethoxy-5-fluoro-4(3H)-pyrimidinone, Fluorouracil - Impurity F, 2-Ethoxy-5-fluorouracil, 2-Ethoxy-5-fluoropyrimidin-4(3H)-one, 2-Ethoxy-5-fluoro-4(3H)-pyrimidinone, 2-ethoxy-5-fluoropyrimidin-4(1H)-one, 2-Ethoxy-5-fluoro-1H-pyrimidin-4-one, 5-Fluoro-2-ethoxy-4(1H)pyrimidinone, 2-Ethoxy-5-fluoro-4-pyrimidinone, Fluorouracil Impurity F, 5-Fluoro-2-ethoxy-4-pyrimidinone

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 Flucytosine EP Impurity B?

The CAS Registry Number of Flucytosine EP Impurity B is 56177-80-1. It is also known as Fluorouracil EP Impurity F, Ethoxy-5-fluoro-4(3H)-pyrimidinone, Fluorouracil - Impurity F.

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

Flucytosine EP Impurity B has the molecular formula C6H7FN2O2 and a molecular weight of 158.13 g/mol. Its IUPAC name is 2-ethoxy-5-fluoro-1H-pyrimidin-6-one.

What is Flucytosine EP Impurity B used for?

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

We supply Flucytosine 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 Flucytosine EP Impurity B?

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

Yes. Flucytosine 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.