Methyl 5-(4-fluorophenyl)-3-methylpyrazolo[1,5-a]pyrimidine-7-carboxylate CAS 1443279-71-7
| CAS No. | 1443279-71-7 |
| Molecular Formula | C15H12FN3O2 |
| Molecular Weight | 285.27 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 285.27 g/mol gives Methyl 5-(4-fluorophenyl)-3-methylpyrazolo[1,5-a]pyrimidine-7-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Methyl 5-(4-fluorophenyl)-3-methylpyrazolo[1,5-a]pyrimidine-7-carboxylate (CAS 1443279-71-7), molecular formula C15H12FN3O2 and molecular weight 285.27 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, fluorine substitution, Methyl 5-(4-fluorophenyl)-3-methylpyrazolo[1,5-a]pyrimidine-7-carboxylate is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 285.27 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), Methyl 5-(4-fluorophenyl)-3-methylpyrazolo[1,5-a]pyrimidine-7-carboxylate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C15H12FN3O2 |
| Molecular Weight | 285.27 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- Methyl 1-(2-fluorophenyl)-6-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1011398-46-1)
- 1-(4-Fluorophenyl)-3-methyl-5-(1H-pyrrol-1-yl)-1H-pyrazole-4-carboxylic acid (CAS 1171733-15-5)
- 3-(2-Fluorophenyl)-2,7-dimethylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid (CAS 1204296-96-7)
- 3-(3-Fluorophenyl)-2,7-dimethylpyrazolo[1,5-a]pyrimidine-6-carboxylic acid (CAS 1204297-72-2)
- 2-(2-Fluorophenyl)-5-hydroxy-6-methoxyquinolin-4(1H)-one (CAS 1256037-40-7)
- 2-(3-Fluorophenyl)-5-hydroxy-6-methoxy-4(1H)-quinolinone (CAS 1256037-41-8)
- 2-(4-Fluorophenyl)-5-hydroxy-6-methoxyquinolin-4(1H)-one (CAS 1256037-42-9)
- 4-(3-(4-Fluorophenyl)-1H-1,2,4-triazol-5-yl)-2-methoxyphenol (CAS 1416343-12-8)
Recommended Standards
- 4-(3-(2-Fluorophenyl)-1H-1,2,4-triazol-5-yl)-2-methoxyphenol (CAS 1416348-39-4)
- 2-(3-Fluoro-4-nitrophenyl)-3,4-dihydronaphthalen-1(2H)-one (CAS 1451449-29-8)
- 2-(5-((4-Fluorophenoxy)methyl)-1,3,4-oxadiazol-2-yl)aniline (CAS 1416347-89-1)
- Ethyl 2-(3-fluorophenyl)benzo[d]oxazole-5-carboxylate (CAS 1706442-82-1)
- 1-(6-Amino-3,4-dihydroquinolin-1(2H)-yl)-2,2-dimethylpropan-1-one (CAS 869947-81-9)
- 3-(Chloromethyl)-5-(thiophen-3-yl)-1,2,4-oxadiazole (CAS 184970-24-9)
- 3-Chloro-1-ethylpiperidinium chloride (CAS 50461-27-3)
- (1S,3R)-3-acetamidocyclohexane-1-carboxylic acid (CAS 1821748-41-7)
- (5Z,8Z,11Z,14Z,17Z)-Icosa-5,8,11,14,17-pentaenoyl chloride (CAS 98770-65-1)
- 2-(Benzo[d][1,3]dioxol-5-yl)furo[2,3-b]quinoxaline (CAS 922145-32-2)
- 3-Fluoro-5-methoxybenzyl Bromide (CAS 914637-29-9)
- 1-(5-(2-Aminophenyl)furan-2-yl)ethan-1-one (CAS 62144-37-0)
- Ethoxysulfonyl Chloride (CAS 625-01-4)
- Semaglutide impurity 201 (CAS CATO-C4X-2226201)
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