6-Chlorouracil , 99% , 4270-27-3

Synonym(s):
4-Chloro-2,6-dihydroxypyrimidine;6-Chloro-2,4-dihydroxypyrimidine;6-Chlorouracil

CAS NO.：4270-27-3

Empirical Formula: C4H3ClN2O2

Molecular Weight: 146.53

MDL number: MFCD00014595

EINECS: 224-258-0

PRODUCT Properties

• Melting point: 290-295°C
• Boiling point: 300°C
• Density: 1.61±0.1 g/cm3(Predicted)
• storage temp.: Keep in dark place,Sealed in dry,Room Temperature
• solubility: Soluble in Ammonium Hydroxide
• pka: 6.24±0.10(Predicted)
• form: Solid
• color: White
• Water Solubility: 4.885g/L(25 ºC)
• BRN: 120492
• InChI: InChI=1S/C4H3ClN2O2/c5-2-1-3(8)7-4(9)6-2/h1H,(H2,6,7,8,9)
• InChIKey: PKUFNWPSFCOSLU-UHFFFAOYSA-N
• SMILES: C1(=O)NC(Cl)=CC(=O)N1
• CAS DataBase Reference: 4270-27-3(CAS DataBase Reference)
• NIST Chemistry Reference: 6-Chlorouracil(4270-27-3)

Description and Uses

Chlorouracil (4-Chlorouracil; 6-Chlorouracil) is a halogenated uracil that is useful in studies of the effects of halogenation on nucleic acid base-pair stability and alkali metal ion affinity. Reaction of 6-chlorouracil with 4-(dimethylamino)pyridine, 4-methylpyridine, and pyridin-4-yl-morpholine yielded pyridinium-substituted uracils as chlorides which were converted into pyridinium uracilates by deprotonation. These heterocyclic mesomeric betaines are cross-conjugated and thus possess separate cationic (pyridinium) and anionic (uracilate) moieties. Calculations and X-ray single crystal analyses may be used to characterize these systems and to compare the salts with the betaines.

Safety

• Symbol(GHS): GHS07
• Signal word: Warning
• Hazard statements: H315-H319-H335
• Precautionary statements: P261-P264-P271-P280-P302+P352-P305+P351+P338
• Hazard Codes: Xi
• Risk Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• HazardClass: IRRITANT
• HS Code: 29335990