4-(3,5-Dimethyl-1H-1,2,4-triazol-1-yl)-3-methyl-1H-pyrazol-5-ol CAS 1207259-90-2
| CAS No. | 1207259-90-2 |
| Molecular Formula | C8H11N5O |
| Molecular Weight | 193.21 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.
4-(3,5-Dimethyl-1H-1,2,4-triazol-1-yl)-3-methyl-1H-pyrazol-5-ol (CAS 1207259-90-2), molecular formula C8H11N5O and molecular weight 193.21 g/mol, is a CATO reference standard with documented purity and traceability.
4-(3,5-Dimethyl-1H-1,2,4-triazol-1-yl)-3-methyl-1H-pyrazol-5-ol (C8H11N5O) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C8H11N5O |
| Molecular Weight | 193.21 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 |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 5 |
Related Dimethyl Standards
- 1-((4,5-Dimethyl-4h-1,2,4-triazol-3-yl)methyl)-1h-1,2,3-triazol-4-amine (CAS 1511565-15-3)
- 1-{5,7-dimethyl-4H,7H-[1,2,3,4]tetrazolo[1,5-a]pyrimidin-6-yl}ethan-1-one (CAS 1803585-36-5)
- 1-{4,5-dimethyl-4H,7H-[1,2,3,4]tetrazolo[1,5-a]pyrimidin-6-yl}ethan-1-one (CAS 1803609-25-7)
- Dimethyl-N,N-diisopropylphosphoramidite (CAS 122194-07-4)
- 2,2-DIMETHYL-2,3-DIHYDROQUINOLIN-4(1H)-ONE (CAS 132588-91-1)
- Dimethyl N,N-Diisopropylphosphoramidite (CAS 29952-64-5)
- 3,3-Dimethyl-6-nitro-2,3-dihydrobenzofuran (CAS 1135494-44-8)
- 1-(2,4-Dimethyl-5-nitrophenyl)ethan-1-one (CAS 13621-23-3)
Recommended Standards
- (5-Methyl-1,2,4-oxadiazol-3-yl)(1-methyl-1h-pyrazol-4-yl)methanamine (CAS 1155536-36-9)
- 2-Amino-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine-4-carboxamide (CAS 1223748-53-5)
- 2-(4-Amino-1h-pyrazol-1-yl)-N-(2-cyanoethyl)acetamide (CAS 1152867-27-0)
- (1-(2-(1H-pyrazol-1-yl)ethyl)-1H-1,2,3-triazol-4-yl)methanol (CAS 1251127-81-7)
- (S)-(2-chlorophenyl)(cyclopropyl)methanamine (CAS 1075715-53-5)
- 4-(3-Iodophenyl)-1h-pyrazole (CAS 1399654-75-1)
- (3AR,6S,6aR)-6-((S)-1-((tert-butyldimethylsilyl)oxy)ethyl)-2,2-dimethyltetrahydro-4H-cyclopenta[d][1,3]dioxol-4-one (CAS 1638744-51-0)
- cis-4-aminocyclohexanecarbonitrile;hydrochloride (CAS 1387445-51-3)
- 4-(2-[(4-Fluorophenyl)sulfanyl]ethyl)piperidine hydrochloride (CAS 1454653-52-1)
- N-(2-(6-(Methylthio)-4-(piperidin-1-yl)-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethyl)thiophene-2-carboxamide (CAS 941942-05-8)
- Ethyl 3-bromo-1-(difluoromethyl)-1H-pyrazole-4-carboxylate (CAS 1713713-58-6)
- 5-Amino-6-bromonicotinic acid (CAS 1292765-17-3)
- 1-(4-Phenylthiazol-2-yl)-5-(trifluoromethyl)-1H-pyrazole-4-carboxylic acid (CAS 159885-80-0)
- Tirzepatide Impurity 13 (CAS CATO-C4X-324013)
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