3-Methylpyrazolo[1,5-a]pyrimidine-5,7-diol CAS 939979-60-9
| CAS No. | 939979-60-9 |
| Molecular Formula | C7H7N3O2 |
| Molecular Weight | 165.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 3-Methylpyrazolo[1,5-a]pyrimidine-5,7-diol (CAS 939979-60-9), a certified reference material (molecular formula C7H7N3O2, MW 165.15 g/mol) for analytical method development and quality control.
Structurally, 3-Methylpyrazolo[1,5-a]pyrimidine-5,7-diol (C7H7N3O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 165.15 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 3-Methylpyrazolo[1,5-a]pyrimidine-5,7-diol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C7H7N3O2 |
| Molecular Weight | 165.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 3 |
Related Methylpyrazolo Standards
- 2-Methylpyrazolo[1,5-a]pyrimidine-5,7-diol (CAS 939979-42-7)
- (2-Methylpyrazolo[1,5-a]pyrimidin-3-yl)methanol (CAS 1159983-06-8)
- 6-Methylpyrazolo[1,5-a]pyrimidine-3,5-diamine (CAS 357272-72-1)
- (4-Methylpyrazolo[1,5-a]pyridin-3-yl)methanol (CAS 127717-26-4)
- (6-Methylpyrazolo[1,5-a]pyridin-3-yl)methanol (CAS 1356144-57-4)
- 6-Methylpyrazolo[1,5-a]pyrimidine-3-carbaldehyde (CAS 1263059-02-4)
- 2-Methylpyrazolo[1,5-a]pyrimidine-6-carbaldehyde (CAS 933692-37-6)
- 7-Ethyl-5-methylpyrazolo[1,5-a]pyridine (CAS 133560-75-5)
Recommended Standards
- 3-Methylimidazo[1,2-c]pyrimidine-2,5(1H,3H)-dione (CAS 91996-64-4)
- 3-Nitrobenzimidamide (CAS 3459-99-2)
- 3-Methyl-5,6-dihydro-1H-pyrrolo[2,3-d]pyridazine-4,7-dione (CAS 67855-98-5)
- 3-Oxo-3-(pyridin-2-yl)propanoic acid (CAS 4939-97-3)
- 3,4,5-Trimethoxybenzothioamide (CAS 60987-94-2)
- 5-(Hydroxymethyl)pyrazine-2-carboxamide (CAS 412277-94-2)
- 4-[4-(3-Methoxybenzoyl)piperazin-1-yl]benzonitrile (CAS 478046-87-6)
- tert-Butyl 1-azaspiro[3.3]heptan-6-ylcarbamate hydrochloride (CAS 1788044-12-1)
- 5-Cyclohexyl-4-ethyl-4H-[1,2,4]triazole-3-thiol (CAS 180532-65-4)
- (Z)-Hex-3-ene-2,5-dione (CAS 17559-81-8)
- Tert-butyl 2-(tert-butylamino)acetate (CAS 916885-51-3)
- N,N-Dimethyl-7-nitrobenzo[c][1,2,5]oxadiazol-4-amine (CAS 1455-87-4)
- 3-((5-Mercapto-1,3,4-thiadiazol-2-yl)thio)propanoic acid (CAS 57658-21-6)
- Semaglutide impurity 22(OtBu-Ste-γGlu(OtBu)-AEEA-AEEA-OH) (CAS 1118767-16-0)
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