4H-Pyrazolo[4,3-d]pyrimidin-7-ol CAS 39464-16-9
| CAS No. | 39464-16-9 |
| Molecular Formula | C5H4N4O |
| Molecular Weight | 136.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 136.11 g/mol gives 4H-Pyrazolo[4,3-d]pyrimidin-7-ol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies 4H-Pyrazolo[4,3-d]pyrimidin-7-ol (CAS 39464-16-9), a certified reference material (molecular formula C5H4N4O, MW 136.11 g/mol) for analytical method development and quality control.
The molecular framework of 4H-Pyrazolo[4,3-d]pyrimidin-7-ol (C5H4N4O) is characterized by an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 4H-Pyrazolo[4,3-d]pyrimidin-7-ol 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 | C5H4N4O |
| Molecular Weight | 136.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 4 |
Related H Standards
- 1H-Pyrazolo[3,4-b]pyrazin-3(2H)-one (CAS 116056-01-0)
- 3H-Pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 161746-79-8)
- 1H-Pyrazolo[4,3-d]pyrimidin-7(7aH)-one (CAS 179042-24-1)
- 2H-Pyrazolo[4,3-d]pyrimidin-7(6H)-one (CAS 1797409-86-9)
- 1H-Pyrazolo[3,4-d]pyrimidin-4(7H)-one (CAS 180749-06-8)
- 1H-Pyrazolo[3,4-d]pyrimidin-4-ol (CAS 180749-08-0)
- 2H-Pyrazolo[3,4-d]pyrimidin-4-ol (CAS 180749-09-1)
- 1H-Pyrazolo[1,5-a][1,3,5]triazin-2-one (CAS 2140305-63-9)
Recommended Standards
- 4-Cyano-1H-pyrrole-2-carboxylic Acid (CAS 80242-24-6)
- 4-Hydroxyfuro[3,2-d]pyrimidine (CAS 655255-08-6)
- 4-Cyano-1H-imidazole-5-carboxamide (CAS 5372-23-6)
- 5-(Furan-2-yl)-1h-tetrazole (CAS 23650-33-1)
- 2-Oxo-2H-pyran-5-carbonitrile (CAS 129660-12-4)
- N-({[4-(methoxymethoxy)phenyl]carbamoyl}amino)methoxyformamide (CAS 1803605-46-0)
- 4-Methyl-2-(methylthio)-6-(piperazin-1-yl)pyrimidine (CAS 874782-16-8)
- 4-Iodo-2-methyl-1-(2,2,2-trifluoroethyl)-1H-imidazole (CAS 824431-97-2)
- (4,5-Dimethylpyridin-2-yl)methanamine (CAS 1159830-12-2)
- Ethene, 1,1-dichloro-, homopolymer (CAS 9002-85-1)
- Ethyl (3R,4S)-1-benzyl-4-(4-(tert-butyl)phenyl)pyrrolidine-3-carboxylate (CAS 2327184-31-4)
- 7-Bromo-2-chloro-3-fluoroquinoline (CAS 2086770-15-0)
- Sappanone A (CAS 102067-84-5)
- Renin Inhibitor Peptide (CAS 50410-01-0)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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