5-Chloro-6-hydroxy-2-methylpyrimidin-4(3H)-one CAS 1194-76-9
| CAS No. | 1194-76-9 |
| Molecular Formula | C25H26O4 |
| Molecular Weight | 390.47 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Chloro-6-hydroxy-2-methylpyrimidin-4(3H)-one (C25H26O4) contains a flavonoid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
5-Chloro-6-hydroxy-2-methylpyrimidin-4(3H)-one (CAS 1194-76-9), molecular formula C25H26O4 and molecular weight 390.47 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Chloro-6-hydroxy-2-methylpyrimidin-4(3H)-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C25H26O4 |
| Molecular Weight | 390.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Chloro Standards
- 7-Chloro-8-iodo-6-(trifluoromethyl)quinazoline-2,4(1H,3H)-dione (CAS 2655729-07-8)
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- (5-Chloro-2-iodophenyl)(2-fluoro-6-methoxyphenyl)methanone (CAS 1233025-91-6)
- 6-Chloro-N-[(4-fluorophenyl)methyl]-5-iodopyridine-3-carboxamide (CAS 1610377-01-9)
- 2-Chloro-3-[4-(4-chlorophenyl)cyclohexyl-d5]-1,4-naphthalenedione (CAS 1189507-64-9)
- Ethyl 2-({[3-chloro-5-(trifluoromethyl)pyridin-2-yl]amino}methylidene)-4,4,4-trifluoro-3-oxobutanoate (CAS 1823194-75-7)
- 2-(3-Chloro-5-(trifluoromethyl)pyridin-2-yl)-4-(2,6-difluorophenyl)-5-methyl-2,4-dihydro-3H-1,2,4-triazol-3-one (CAS 861206-32-8)
- 3-Acetyl-5-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl](methyl)amino}-3aH,4H,5H,6H,6aH-pyrrolo[3,4-d][1,2]oxazole-4,6-dione (CAS 337920-09-9)
Recommended Standards
- Etofenprox-carboxy (CAS 117252-00-3)
- Tert-butyl (2S,4S)-4-hydroxy-2-(2-(4-methoxyphenyl)pyrrolidine-1-carbonyl)pyrrolidine-1-carboxylate (CAS 1246639-53-1)
- 3-[2-(Morpholine-4-carbonyl)-phenoxy]-piperidine-1-carboxylic acid tert-butyl ester (CAS 1146080-58-1)
- 1-Benzyl 5-(tert-butyl) (2R,3aS,7aR)-2-(hydroxymethyl)hexahydro-1H-pyrrolo[3,2-c]pyridine-1,5(4H)-dicarboxylate (CAS 1250993-22-6)
- (3-((1,4-Dioxa-8-azaspiro[4.5]Decan-8-yl)methyl)phenyl)(4-bromophenyl)methanone (CAS 898761-71-2)
- 2,4-Dichloro-1-{2-[(4-chlorophenyl)sulfanyl]ethoxy}benzene (CAS 338792-76-0)
- 3-(Cyclopropylmethyl)morpholine (CAS 1337410-09-9)
- 2-Bromo-6-(trifluoromethyl)quinazoline (CAS 1394839-81-6)
- 4-[1-(Boc-amino)cyclobutyl]aniline (CAS 1259224-00-4)
- Acrylamide-d5 (CAS 108152-65-4)
- (3,4-Dimethoxy-benzyl)-thiazol-2-yl-amine (CAS 1515147-36-0)
- 2-(2-Aminopyrimidin-4-yl)-4-chlorophenol (CAS 925003-43-6)
- Ethyl 2-amino-2-(2,3-dihydrobenzofuran-5-yl)acetate (CAS 1218682-88-2)
- Urotensin II-Related Peptide (human, mouse, rat) (CAS 342878-90-4)
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