6-Methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid CAS 1545972-44-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 1545972-44-8 |
| Molecular Formula | C8H11N3O2 |
| Molecular Weight | 181.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Description
6-Methyl-4H,5H,6H,7H-pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (CAS 1545972-44-8) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C8H11N3O2. Molecular weight: 181.19 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C8H11N3O2 |
| Molecular Weight | 181.19 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 3 |
Recommended Standards
- Ethyl 2,6-diaminonicotinate (CAS 154378-58-2)
- Ethyl 1-methyl-2-oxo-1,2-dihydropyridine-3-carboxylate (CAS 15506-19-1)
- Methyl 5,6,7,8-tetrahydroimidazo[1,2-a]pyrazine-8-carboxylate (CAS 1543378-25-1)
- 2-(4-(N-cyclopropylsulfamoyl)phenoxy)acetic acid (CAS 890094-43-6)
- 2-Trifluoromethylpyrrolidine-1-sulfonamide (CAS 1389313-50-1)
- 5-(3,4-Difluorophenyl)-4,5-dihydro-1,2-oxazole-3-carboxylic acid (CAS 1018170-52-9)
- 5-Amino-3-(trifluoromethyl)isoxazole-4-carboxylic acid (CAS 132066-38-7)
- 9H-Indeno[1,2-b]pyrazin-9-one (CAS 93194-44-6)
- 2'-Bromo-[1,1'-biphenyl]-4-carboxylic acid (CAS 3808-94-4)
- Semaglutide Impurity 115 (CAS CATO-C4X-2226115)
Why CATO?
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