799262-17-2 5-Methyl-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylic acid MFCD04113976 CAS 799262-17-2
| CAS No. | 799262-17-2 |
| Molecular Formula | C8H7N3O3 |
| Molecular Weight | 193.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 799262-17-2 5-Methyl-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylic acid MFCD04113976 (C8H7N3O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 193.16 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.
CATO supplies 799262-17-2 5-Methyl-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-3-carboxylic acid MFCD04113976 (CAS 799262-17-2), a certified reference material (molecular formula C8H7N3O3, MW 193.16 g/mol) for analytical method development and quality control.
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.
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 | C8H7N3O3 |
| Molecular Weight | 193.16 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 3 |
Recommended Standards
- 4,5-dihydro-4-oxo-3H-Pyrrolo[3,2-d]pyrimidine-7-carboxylic acid methyl ester 779326-74-8 (CAS 779326-74-8)
- 2-Bromo-3-(trimethylsilyl)propene 2-Bromoallyltrimethylsilane 81790-10-5 (CAS 81790-10-5)
- (2z)-3-hydroxy-2-(4-nitrophenyl)acrylaldehyde 676605-99-5 (CAS 676605-99-5)
- 2-Methyl-7-oxo-4,7-dihydropyrazolo[1,5-a]pyrimidine-6-carboxylic acid 6911AC 98555-13-6 C8H7N3O3 (CAS 98555-13-6)
- Umckalin (CAS 43053-62-9)
- 2,2'-(5-(tert-Butyl)-1,3-phenylene)bis(4,4-dimethyl-4,5-dihydrooxazole) (CAS 915032-89-2)
- 1-(Methyl)-4-nitro-3-(2,2,3,3,3-D5-propyl)-1H-pyrazole-5-carboxylic Acid (CAS 1175992-94-5)
- Tolvaptan Impurity 57 (CAS CATO-C4X-195557)
- 7,9-Bis(2,6-bis((R)-1-(3,5-di-tert-butylphenyl)ethyl)-4-methylphenyl)-7H-acenaphtho[1,2-d]imidazol-9-ium chloride (CAS 2212005-59-7)
- 5,5-Dimethoxypentanal (CAS 50789-30-5)
- 3-Aminopyridazine (CAS 5469-70-5)
- 4-Fluoro-6-methylnicotinic acid (CAS 1060806-01-0)
- 4-(Trifluoromethoxy)-[1,1'-biphenyl]-2-carboxylic acid (CAS 2379321-48-7)
- Semaglutide impurity 201 (CAS CATO-C4X-2226201)
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