1-(2-Nitrophenyl)-1h,4h,5h-pyrazolo[3,4-d]pyrimidin-4-one CAS 65973-97-9
| CAS No. | 65973-97-9 |
| Molecular Formula | C11H7N5O3 |
| Molecular Weight | 257.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 1-(2-Nitrophenyl)-1h,4h,5h-pyrazolo[3,4-d]pyrimidin-4-one (CAS 65973-97-9), a certified reference material (molecular formula C11H7N5O3, MW 257.20 g/mol) for analytical method development and quality control.
Based on its molecular formula C11H7N5O3, 1-(2-Nitrophenyl)-1h,4h,5h-pyrazolo[3,4-d]pyrimidin-4-one contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 257.20 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).
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 | C11H7N5O3 |
| Molecular Weight | 257.20 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 methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 5 |
Related Nitrophenyl Standards
- 1-(2-Nitrophenyl)-1H-purin-6(7H)-one (CAS 144106-37-6)
- 1-(3-Nitrophenyl)-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 65973-98-0)
- 1-(4-Nitrophenyl)-1h,4h,5h-pyrazolo[3,4-d]pyrimidin-4-one (CAS 65973-99-1)
- 6-(4-Nitrophenyl)furo[2,3-d]pyrimidin-2(3H)-one (CAS 920507-06-8)
- 1-(2-Nitrophenyl)-5-(trifluoromethyl)-1H-pyrazole (CAS 1269291-12-4)
- 1-(4-Nitrophenyl)-4-(trifluoromethyl)-1H-pyrazole (CAS 1393125-56-8)
- 1-(4-Nitrophenyl)-5-(trifluoromethyl)-1h-pyrazole (CAS 215500-55-3)
- N'-(4-nitrophenyl)benzohydrazide (CAS 1088-95-5)
Recommended Standards
- (E)-4,4,5,5,5-pentafluoro-1-(piperidin-1-yl)pent-1-en-3-one (CAS 866144-15-2)
- (4-Bromophenyl)(trimethylsilyl)methanone (CAS 75748-11-7)
- (4-Bromobutyl)trimethoxysilane (CAS 226558-82-3)
- 1,3-Dioxoisoindolin-2-yl furan-2-carboxylate (CAS 63591-87-7)
- (e)-3-(2-(Dimethylamino)phenyl)acrylic acid (CAS 199679-45-3)
- N-(2-(1H-Indol-3-yl)ethyl)-2-(2-methoxyphenyl)acetamide (CAS 847769-80-6)
- 2-Chloropyrido[3,2-d]pyrimidin-4(3H)-one (CAS 2031259-38-6)
- (6-Bromobenzo[d][1,3]dioxol-4-yl)boronic acid (CAS 1150114-39-8)
- 3-Bromo-2-hydroxy-4,5-dimethylbenzaldehyde (CAS 886503-97-5)
- Tetracontyl palmitate (CAS 120784-87-4)
- (5-(Tert-butyl)-2-hydroxyphenyl)(cyclopropyl)methanone (CAS 1249212-34-7)
- 3-Methoxy-4-thiocyanatophenol (CAS 6130-37-6)
- 3-Amino-4-hydroxy-1H-pyrazolo[4,3-c]pyridine-7-carboxylic acid (CAS 120581-76-2)
- (Leu31,Pro3?)-Neuropeptide Y (porcine) trifluoroacetate salt (CAS 125580-28-1)
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