5-Bromo uracil, GR 98%+

Name: 5-Bromo uracil, GR 98%+
Brand: Vaqora Chemicals
SKU: VQ-011957

About 5-Bromo uracil, GR 98%+

Vaqora Chemicals supplies 5-Bromo uracil (AR grade), a diazine derivative registered under CAS number 51-20-7, specified at ≥98% purity. Formula C4H3BrN2O2, molecular weight 190.98 g/mol. Systematically, it is named 5-bromo-1H-pyrimidine-2,4-dione. Common synonyms include 5-Bromo-2,4-dihydroxypyrimidine and 5-Bromouracil.

The material typically appears as a white to off-white powder, crystals or crystalline powder. Literature values give a melting point of above 300 °C. Keep the container tightly sealed and store it in a cool, dry area. It carries the GHS signal word “Warning” with 1 hazard statement. Review the Safety Data Sheet before use.

Typical applications include organic synthesis and API synthesis. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 1 g, 5 g and 5 x 1 kg packs, 5-Bromo uracil 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-Bromo uracil, GR 98%+
Catalogue No.	VQ-011957
CAS Number	51-20-7
IUPAC name	5-bromo-1H-pyrimidine-2,4-dione
Molecular formula	C₄H₃BrN₂O₂
Molecular weight	190.98 g/mol
Exact mass	189.9378
Grade	AR
Purity / assay	≥98%
HSN code	29335990
InChIKey	LQLQRFGHAALLLE-UHFFFAOYSA-N
SMILES	C1=C(C(=O)NC(=O)N1)Br
PubChem CID	5802

Physical properties
Physical form	Crystalline
Appearance	White to off-white powder, crystals or crystalline powder
Melting point	>300 °C
LogP (XLogP3)	-0.2
H-bond donors / acceptors	2 / 2
TPSA	58.2 Å²
Synonyms	5-Bromo-2,4-dihydroxypyrimidine, 5-Bromouracil, 5-bromopyrimidine-2,4(1H,3H)-dione, Uracil, 5-bromo-, 5-Bromo-2,4(1H,3H)-pyrimidinedione, 2,4(1H,3H)-Pyrimidinedione, 5-bromo-, 5-bromo-1,2,3,4-tetrahydropyrimidine-2,4-dione, 5-BrU, 1,2,3,4-tetrahydro-5-bromo-2,4-pyrimidinedione, 5 bromouracil, 5-bromopyrimidine-2,4-diol, 5-bromo-1,3-dihydropyrimidine-2,4-dione

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, 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

Other grades of CAS 51-20-7

5-Bromo uracil

CAS: 51-20-7
Formula: C₄H₃BrN₂O₂
MW: 190.98 g/mol

VQ-046868

Frequently asked questions

What is the CAS number of 5-Bromo uracil, GR 98%+?

The CAS Registry Number of 5-Bromo uracil, GR 98%+ is 51-20-7. It is also known as 5-Bromo-2,4-dihydroxypyrimidine, 5-Bromouracil, 5-bromopyrimidine-2,4(1H,3H)-dione.

What is the molecular formula and molecular weight of 5-Bromo uracil, GR 98%+?

5-Bromo uracil, GR 98%+ has the molecular formula C4H3BrN2O2 and a molecular weight of 190.98 g/mol. Its IUPAC name is 5-bromo-1H-pyrimidine-2,4-dione.

Which grade and pack sizes of 5-Bromo uracil, GR 98%+ can I order?

We supply 5-Bromo uracil, GR 98%+ in AR (≥98%) grade, in 1 g, 5 g, 5 x 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 5-Bromo uracil, GR 98%+?

Yes. Every lot of 5-Bromo uracil, GR 98%+ 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-Bromo uracil, GR 98%+ be shipped internationally?

Yes. 5-Bromo uracil, GR 98%+ 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.