7-Hydroxy-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxylic acid CAS 40775-86-8
| CAS No. | 40775-86-8 |
| Molecular Formula | C7H6N4O3 |
| Molecular Weight | 194.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
7-Hydroxy-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxylic acid (CAS 40775-86-8) is a high-purity analytical reference standard with the molecular formula C7H6N4O3 and a molecular weight of 194.15 g/mol.
Based on its molecular formula C7H6N4O3, 7-Hydroxy-5-methyl-[1,2,4]triazolo[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 194.15 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.
Physical & Chemical Properties
| Molecular Formula | C7H6N4O3 |
| Molecular Weight | 194.15 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 methanol, ethanol, DMSO, water |
| 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.) | 1968 |
| Nitrogen Atoms | 4 |
Related Hydroxy Standards
- (7-Hydroxy[1,2,4]triazolo-[1,5-a]pyrimidin-6-yl)acetic acid (CAS 1338495-14-9)
- 2-(7-Hydroxy-[1,2,4]triazolo[1,5-a]pyrimidin-5-yl)acetic acid (CAS 85871-89-2)
- 4-(Hydroxy(methyl)phosphoryl)-2-(methylamino)butanoic acid (CAS 89222-30-0)
- 1-Hydroxy-3-oxo-1,3-dihydroisobenzofuran-4-carboxylic acid (CAS 14671-41-1)
- 12-hydroxy-4,6,11-trioxatricyclo[7.3.0.0^{3,7}]dodeca-1(9),2,7-trien-10-one (CAS 62869-57-2)
- 3-Hydroxy-4-nitroisoindolin-1-one (CAS 39830-63-2)
- 4-Hydroxy-3-methoxy-2-nitrobenzonitrile (CAS 677335-32-9)
- 4-Hydroxy-3-methoxy-5-nitrobenzonitrile (CAS 79743-73-0)
Recommended Standards
- 7-Amino-5-methyl-[1,2,5]oxadiazolo[3,4-b]pyridine-6-carboxylic acid (CAS 2179277-99-5)
- Methyl 5-oxo-5,8-dihydro-[1,2,4]triazolo[4,3-a]pyrimidine-7-carboxylate (CAS 34102-78-8)
- 6-Methoxy-3-nitroimidazo[1,2-b]pyridazine (CAS 37990-39-9)
- Methyl 7-oxo-4,7-dihydro-[1,2,4]triazolo[1,5-a]pyrimidine-5-carboxylate (CAS 34102-77-7)
- (S)-2-((tert-Butoxycarbonyl)(ethyl)amino)propanoic acid (CAS 91292-56-7)
- N-benzyl-2-methoxynaphthalene-1-sulfinamide (CAS 477714-09-3)
- 5-Bromo-2-methylisonicotinaldehyde (CAS 1060810-15-2)
- 5-(Benzyloxy)-1,3-dioxane (CAS 41128-92-1)
- (1H-Benzo[d]imidazol-2-yl)difluoromethyl vinylcarbamate (CAS 387394-11-8)
- 2-(Methyl(phenyl)amino)acetonitrile (CAS 36602-08-1)
- (1-(3-Chloro-4-methylphenyl)-1H-1,2,3-triazol-4-yl)methanamine (CAS 1247756-60-0)
- 6-Chloro-2-(2,4-dimethylphenyl)quinoline-4-carbonyl chloride (CAS 1160263-13-7)
- [(3-Methoxy-benzyl)-methyl-amino]-acetic acid (CAS 947013-82-3)
- Des-Pro36-37-Tirzepatide (CAS CATO-CPTD788938)
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