methyl 6-(4-chlorophenyl)-3-methylisoxazolo[5,4-b]pyridine-4-carboxylate CAS 878124-87-9
| CAS No. | 878124-87-9 |
| Molecular Formula | C15H11ClN2O3 |
| Molecular Weight | 302.71 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
methyl 6-(4-chlorophenyl)-3-methylisoxazolo[5,4-b]pyridine-4-carboxylate (CAS 878124-87-9) is a high-purity analytical reference standard with the molecular formula C15H11ClN2O3 and a molecular weight of 302.71 g/mol.
Structurally, methyl 6-(4-chlorophenyl)-3-methylisoxazolo[5,4-b]pyridine-4-carboxylate (C15H11ClN2O3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 302.71 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), methyl 6-(4-chlorophenyl)-3-methylisoxazolo[5,4-b]pyridine-4-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 | C15H11ClN2O3 |
| Molecular Weight | 302.71 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 |
| 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.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related methyl Standards
- N-(3-chlorophenyl)-3-(3-nitrophenyl)acrylamide (CAS 109567-63-7)
- 6-(4-Chlorophenyl)-3-ethylisoxazolo[5,4-b]pyridine-4-carboxylic acid (CAS 1263210-58-7)
- Methyl 2-[4-(4-chlorophenyl)-3-cyano-2-oxo-1,2-dihydropyridin-1-yl]acetate (CAS 478080-39-6)
- 1031605-64-7 7-(4-Chlorophenyl)-1-ethylpyrimido[4,5-d]pyrimidine-2,4(1H,3H)-dione MFCD14716310 (CAS 1031605-64-7)
- 3-(6-(3-Chlorophenyl)-[1,2,4]triazolo[4,3-b]pyridazin-3-yl)propanoic acid (CAS 1255782-22-9)
- Methyl 7-(4-chlorophenyl)-5-methyl-[1,2,4]triazolo[1,5-a]pyrimidine-2-carboxylate (CAS 1443278-84-9)
- 6-(4-Chlorophenyl)-3-methylisoxazolo[5,4-b]pyridine-4-carbohydrazide (CAS 938018-05-4)
- N-((5-(4-Chlorophenyl)-1H-1,2,4-triazol-3-yl)methyl)-4-fluoroaniline (CAS 1171359-35-5)
Recommended Standards
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- 7-Chloro-3-hydroxy-2-(2-methoxyphenyl)-3,4-dihydroquinazolin-4-one (CAS 338412-70-7)
- 7-Chloro-3-(4-methoxyphenyl)quinazoline-2,4(1H,3H)-dione (CAS 61680-18-0)
- 7-Chloro-4-methyl-4,5-dihydro-3H-benzo[e][1,4]diazepin-2-amine dihydrochloride (CAS 1784753-85-0)
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- H-Gly-Arg-Gly-Asp-Ser-Pro-Lys-OH (CAS 111119-28-9)
- 2-(Phenylselanyl)cyclohexanone (CAS 50984-16-2)
- 5-Nitrothiophene-3-carboxamide (CAS 36050-09-6)
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- 4-(Tert-butyl)benzyl (1-methyl-3-(trifluoromethyl)-1H-thieno[2,3-c]pyrazol-5-yl)carbamate (CAS 866143-88-6)
- 5,6,7,8-tetrahydroquinazolin-6-amine (CAS 933726-35-3)
- Tirzepatide Impurity 58 (CAS CATO-C4X-324058)
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