5-(1-Methyl-4-nitro-1H-pyrazol-3-yl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid CAS 1004727-48-3
| CAS No. | 1004727-48-3 |
| Molecular Formula | C11H8N6O4 |
| Molecular Weight | 288.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-(1-Methyl-4-nitro-1H-pyrazol-3-yl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 1004727-48-3) is a high-purity analytical reference standard with the molecular formula C11H8N6O4 and a molecular weight of 288.22 g/mol.
Based on its molecular formula C11H8N6O4, 5-(1-Methyl-4-nitro-1H-pyrazol-3-yl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid 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 288.22 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).
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 5-(1-Methyl-4-nitro-1H-pyrazol-3-yl)pyrazolo[1,5-a]pyrimidine-2-carboxylic acid 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 | C11H8N6O4 |
| Molecular Weight | 288.22 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.) | 1988 |
| Nitrogen Atoms | 6 |
Related Methyl Standards
- 1-(2-Nitro-4-(trifluoromethyl)phenyl)piperidin-4-one (CAS 1096951-87-9)
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- 2-(2-Nitro-5-(pentafluoro-λ6-sulfanyl)phenyl)acetonitrile (CAS 1309569-29-6)
- 2-(2-Nitro-4-(pentafluoro-λ6-sulfanyl)phenyl)acetonitrile (CAS 1309569-40-1)
- 5-Methyl-4-nitro-1-(4-(trifluoromethoxy)phenyl)-1H-1,2,3-triazole (CAS 478041-04-2)
- 1-(2-Nitro-4-(trifluoromethyl)phenyl)azepane (CAS 62054-71-1)
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Recommended Standards
- Bupivacaine EP Impurity D (CAS 1037184-07-8)
- Ethyl 7-methoxy-2-(trifluoromethyl)pyrazolo[1,5-a]pyridine-4-carboxylate (CAS 1010819-95-0)
- Tetraethyl methylenediphosphonate (CAS 1660-94-2)
- N-(2-(2,4-dichlorophenoxy)ethyl)cyclohexanamine (CAS 356533-07-8)
- (R)-Xyl-SPA (CAS 1297613-75-2)
- 5-Methyl-3-oxoisoxazole-2(3H)-carboxamide (CAS 77643-87-9)
- 1-(1-Isobutylcyclopropyl)-N-methylmethanamine (CAS 1543050-52-7)
- 2-(2-Bromoallyl)-5-methylthiophene (CAS 1378867-11-8)
- Ethyl 4-hydroxy-7-methylquinoline-3-carboxylate (CAS 41460-18-8)
- 8-Fluoro-3-(pyridin-3-yl)chroman-4-one (CAS 1529771-76-3)
- 1,2-Dibromo-4-(bromomethyl)benzene (CAS 64382-93-0)
- 3-(2-Phenylethyl)pyridine (CAS 6312-09-0)
- Poly(oxy-1,2-ethanediyl), .alpha.-(4-dodecylphenyl)-.omega.-hydroxy- (CAS 26401-47-8)
- Biotinyl-Pancreatic Polypeptide (human) trifluoroacetate salt (CAS 1816258-36-2)
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