5-Chlorouracil, 98%

Name: 5-Chlorouracil, 98%
Brand: Vaqora Chemicals
SKU: VQ-011959

About 5-Chlorouracil, 98%

Vaqora Chemicals supplies 5-Chlorouracil, a diazine derivative registered under CAS number 1820-81-1, specified at 99% purity. The compound has the formula C4H3ClN2O2, corresponding to a molecular weight of 146.53 g/mol. Its systematic (IUPAC) name is 5-chloro-1H-pyrimidine-2,4-dione. Common synonyms include 5-Chloro-2,4-dihydroxypyrimidine and 5-Chloropyrimidine-2,4(1H,3H)-dione.

In its supplied form it is white to light yellow powder or crystals. Reported physical data include a melting point of above 300 °C. Store in a tightly closed container in a cool, dry and well-ventilated place. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

Key uses span diagnostic assays and organic synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Vaqora Chemicals supplies 5-Chlorouracil in 5 g, 25 g, 100 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Diagnostic assays
Organic synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	5-Chlorouracil, 98%
Catalogue No.	VQ-011959
CAS Number	1820-81-1
IUPAC name	5-chloro-1H-pyrimidine-2,4-dione
Molecular formula	C₄H₃ClN₂O₂
Molecular weight	146.53 g/mol
Exact mass	145.9883
Purity / assay	99%
HSN code	29399900
InChIKey	ZFTBZKVVGZNMJR-UHFFFAOYSA-N
SMILES	C1=C(C(=O)NC(=O)N1)Cl
PubChem CID	15758

Physical properties
Physical form	Crystalline
Appearance	White to light yellow powder or crystals
Melting point	>300 °C
LogP (XLogP3)	-0.3
H-bond donors / acceptors	2 / 2
TPSA	58.2 Å²
Synonyms	5-Chloro-2,4-dihydroxypyrimidine, 5-Chloropyrimidine-2,4(1H,3H)-dione, 2,4(1H,3H)-Pyrimidinedione, 5-chloro-, Uracil, 5-chloro-, 4(3H)-Pyrimidinone, 5-chloro-2-hydroxy- (9CI), 5-chloro-uracil, 5-chloro-1,3-dihydropyrimidine-2,4-dione, 5-Chloropyrimidine-2,4(1H,3H)-dione (5-Chlorouracil), 2,4-Pyrimidinediol, 5-chloro- (9CI), Uracil, 5-chloro- (VAN), 5-chloro-1,2,3,4-tetrahydropyrimidine-2,4-dione, 5-chloro-2,4-pyrimidinedione

Safety & hazard information (GHS)

Toxic

Harmful / irritant

Health hazard

Signal word: Danger

Hazard statements

H301Toxic if swallowed
H302Harmful if swallowed
H341Suspected of causing genetic defects

Precautionary statements: P203, P264, P270, P280, P301 + P316, P301 + P317, P318, P321, P330, 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

Frequently asked questions

What is the CAS number of 5-Chlorouracil, 98%?

The CAS Registry Number of 5-Chlorouracil, 98% is 1820-81-1. It is also known as 5-Chloro-2,4-dihydroxypyrimidine, 5-Chloropyrimidine-2,4(1H,3H)-dione, 2,4(1H,3H)-Pyrimidinedione, 5-chloro-.

What is the molecular formula and molecular weight of 5-Chlorouracil, 98%?

5-Chlorouracil, 98% has the molecular formula C4H3ClN2O2 and a molecular weight of 146.53 g/mol. Its IUPAC name is 5-chloro-1H-pyrimidine-2,4-dione.

Which grade and pack sizes of 5-Chlorouracil, 98% can I order?

We supply 5-Chlorouracil, 98% in (99%) grade, in 5 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 5-Chlorouracil, 98%?

Yes. Every lot of 5-Chlorouracil, 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-Chlorouracil, 98% be shipped internationally?

Yes. 5-Chlorouracil, 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.