6-((2-Chlorophenyl)amino)-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one CAS 81016-63-9
| CAS No. | 81016-63-9 |
| Molecular Formula | C12H10ClN5O |
| Molecular Weight | 275.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C12H10ClN5O, 6-((2-Chlorophenyl)amino)-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 275.69 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 6-((2-Chlorophenyl)amino)-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one (CAS 81016-63-9), a certified reference material (molecular formula C12H10ClN5O, MW 275.69 g/mol) for analytical method development and quality control.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C12H10ClN5O |
| Molecular Weight | 275.69 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Related Chlorophenyl Standards
- Ethyl 1-(2-chlorophenyl)-5-cyano-1H-pyrazole-3-carboxylate (CAS 1269291-83-9)
- 4-(4-Chlorophenyl)-3,6-dimethylisoxazolo[3,4-d]pyridazin-7(6H)-one (CAS 135126-70-4)
- Methyl 2-(2-chlorophenyl)-4H-furo[3,2-b]pyrrole-5-carboxylate (CAS 1713640-18-6)
- 2-((2-Chlorophenyl)carbamoyl)benzoic acid (CAS 6273-12-7)
- 2-(4-Chlorophenyl)-3a,4,7,7a-tetrahydro-1H-4,7-epoxyisoindole-1,3(2H)-dione (CAS 43069-79-0)
- 3-[(2-chlorophenyl)methyl]-5-methyl-3H-[1,2,3]triazolo[4,5-d]pyrimidin-7-ol (CAS 333407-55-9)
- 6-((4-Chlorophenyl)amino)-3-methyl-1H-pyrazolo[4,3-d]pyrimidin-7(6H)-one (CAS 86831-75-6)
- Ethyl 1-(2-chlorophenyl)-5-cyano-1H-pyrazole-4-carboxylate (CAS 98476-18-7)
Recommended Standards
- 5-Chloro-2-(4-methoxybenzyl)-3-oxo-2,3-dihydropyridazine-4-carbonitrile (CAS 2817666-51-4)
- 4-Chloro-4-methyl-3-nitrobenzophenone (CAS 40306-24-9)
- 7-Chloro-8-fluoro-5-methoxy-2-(methylthio)pyrido[4,3-d]pyrimidin-4(1H)-one (CAS 2763158-77-4)
- 4-Amino-1-((2R,3R,4S,5S)-5-(chloromethyl)-3,4-dihydroxytetrahydrofuran-2-yl)-5-methylpyrimidin-2(1H)-one (CAS 2355288-62-7)
- 1-Bromo-4-methoxybutane (CAS 4457-67-4)
- Methyl 2-(m-tolylthio)acetate (CAS 190005-34-6)
- 3-(tert-Butoxycarbonyl)-3-azaspiro[5.5]undecane-7-carboxylic acid (CAS 2126163-51-5)
- 1-(4-Bromobenzyl)-2-oxo-N-(3-(trifluoromethyl)phenyl)-1,2-dihydropyridine-3-carboxamide (CAS 946379-77-7)
- 2-(Dimethylamino)butanenitrile (CAS 62737-41-1)
- 38514-03-3 4-Methyloctan-1-ol EINECS 253-976-7 (CAS 38514-03-3)
- N-[4-(1-aminoethyl)phenyl]urea (CAS 954578-48-4)
- 1-(4-Fluoro-3-nitrophenyl)-1H-pyrrole-2,5-dione (CAS 67154-40-9)
- 3,6-Dibromo-9-(4-(tert-butyl)phenyl)-9H-carbazole (CAS 741293-42-5)
- Semaglutide impurity 269 (CAS CATO-C4X-2226269)
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