5-Fluorouracil, 99%

Name: 5-Fluorouracil, 99%
Brand: Vaqora Chemicals
SKU: VQ-010686

About 5-Fluorouracil, 99%

Listed under CAS 51-21-8, 5-Fluorouracil is a fluorinated building block available from Vaqora Chemicals in Extra Pure grade, specified at 99% purity. With the molecular formula C4H3FN2O2, it has a molar mass of 130.08 g/mol. Its systematic (IUPAC) name is 5-fluoro-1H-pyrimidine-2,4-dione. It is also known as 2,4-Dihydroxy-5-fluoropyrimidine or 5-FU.

The material typically appears as a white powder. Reported physical data include a melting point of 282-286 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Danger” with 8 hazard statements. Review the Safety Data Sheet before use.

Key uses span organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing, academic and industrial research and agrochemical production.

Available in 1 g, 5 g, 25 g and 1 kg packs, 5-Fluorouracil is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	5-Fluorouracil, 99%
Catalogue No.	VQ-010686
CAS Number	51-21-8
IUPAC name	5-fluoro-1H-pyrimidine-2,4-dione
Molecular formula	C₄H₃FN₂O₂
Molecular weight	130.08 g/mol
Exact mass	130.0179
Grade	Extra Pure
Purity / assay	99%
HSN code	29335990
InChIKey	GHASVSINZRGABV-UHFFFAOYSA-N
SMILES	C1=C(C(=O)NC(=O)N1)F
PubChem CID	3385

Physical properties
Physical form	Powder
Appearance	White powder
Melting point	282-286 °C
LogP (XLogP3)	-0.9
H-bond donors / acceptors	2 / 3
TPSA	58.2 Å²
UN number	UN 2811
Synonyms	2,4-Dihydroxy-5-fluoropyrimidine, 5-FU, 5-Fluoro-2,4(1H,3H)-pyrimidinedione, Fluoroblastin, Carzonal, Timazin, 5-Fluoracil, Fluro Uracil, 5 Fluorouracil, 5-Fluoruracil, Effluderm (free base), Fluroblastin

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H312Harmful in contact with skin
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
H340May cause genetic defects
H360May damage fertility or the unborn child
H412Harmful to aquatic life with long lasting effects

Precautionary statements: P203, P261, P264, P264 + P265, P270, P271, P273, P280, P301 + P316, P302 + P352, P304 + P340, P305 + P351 + P338, P317, 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 51-21-8

AR

5-Fluorouracil, AR >99%

CAS: 51-21-8
Formula: C₄H₃FN₂O₂
MW: 130.08 g/mol

VQ-045988

EP

5-Fluorouracil, EP

CAS: 51-21-8
Formula: C₄H₃FN₂O₂
MW: 130.08 g/mol

VQ-047067

Plant Culture

5-Fluorouracil, plant tissue culture tested ≥99%

CAS: 51-21-8
Formula: C₄H₃FN₂O₂
MW: 130.08 g/mol

VQ-045572

Frequently asked questions

What is the CAS number of 5-Fluorouracil, 99%?

The CAS Registry Number of 5-Fluorouracil, 99% is 51-21-8. It is also known as 2,4-Dihydroxy-5-fluoropyrimidine, 5-FU, 5-Fluoro-2,4(1H,3H)-pyrimidinedione.

What is the molecular formula and molecular weight of 5-Fluorouracil, 99%?

5-Fluorouracil, 99% has the molecular formula C4H3FN2O2 and a molecular weight of 130.08 g/mol. Its IUPAC name is 5-fluoro-1H-pyrimidine-2,4-dione.

Which grade and pack sizes of 5-Fluorouracil, 99% can I order?

We supply 5-Fluorouracil, 99% in Extra Pure (99%) grade, in 1 g, 5 g, 25 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 5-Fluorouracil, 99%?

Yes. Every lot of 5-Fluorouracil, 99% 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 5-Fluorouracil, 99% be shipped internationally?

Yes. 5-Fluorouracil, 99% is classified as hazardous (UN 2811), 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.