3-(4-Chlorophenyl)-5-methylisoxazole-4-carboxylic acid CAS 91182-87-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 91182-87-5 |
| Molecular Formula | C11H8ClNO3 |
| Molecular Weight | 237.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(4-Chlorophenyl)-5-methylisoxazole-4-carboxylic acid (CAS 91182-87-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C11H8ClNO3. Molecular weight: 237.64 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C11H8ClNO3 |
| Molecular Weight | 237.64 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 methanol, ethanol, DMSO |
| 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chlorophenyl Standards
- 1-(2-chlorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxylic acid (CAS 103058-59-9)
- 1-(4-chlorophenyl)-5-methyl-1H-1,2,4-triazole-3-carboxylic acid (CAS 103058-60-2)
- 1-(3-Chlorophenyl)-5-methyl-1h-1,2,4-triazole-3-carboxylic acid (CAS 1060795-68-7)
- Methyl 5-(3-chlorophenyl)isoxazole-4-carboxylate (CAS 1065074-27-2)
- Methyl 4-(4-chlorophenyl)isoxazole-5-carboxylate (CAS 1072944-87-6)
- 2-(5-(4-Chlorophenyl)-4H-1,2,4-triazol-3-yl)acetic acid (CAS 1203243-07-5)
- 5-(2-Chlorophenyl)-1-methyl-1H-1,2,3-triazole-4-carboxylic acid (CAS 1267386-96-8)
- Methyl 2-(3-chlorophenyl)oxazole-4-carboxylate (CAS 154405-97-7)
Recommended Standards
- 3-(3-Chlorophenyl)-5-methyl-1,2-oxazole-4-carboxylic acid (CAS 92545-95-4)
- 3-(4-Methoxyphenyl)isoxazole-5-carbonyl chloride (CAS 890095-73-5)
- 2-Chloro-N-(5-phenyl-[1,3,4]oxadiazol-2-yl)-acetamide (CAS 7659-20-3)
- (3,4-Dichlorophenyl)(furan-3-yl)methanol (CAS 1249678-85-0)
- Tert-butyl (2,2,3,3-tetrafluoropropyl) carbonate (CAS 1980035-09-3)
- 6,7,8-Trimethoxyquinazolin-4(3H)-one (CAS 16064-19-0)
- α-[2,4-Bis(1H-1,2,4-triazol-1-yl)phenyl]-α-(1H-1,2,4-triazol-1-ylmethyl)-1H-1,2,4-triazole-1-ethanol (CAS 871550-18-4)
- (2'-Formyl[1,1'-biphenyl]-4-yl)acetonitrile (CAS 893737-87-6)
- Ethyl 4-(diethylamino)-8-isopropylquinoline-3-carboxylate (CAS 1279213-98-7)
- Peptide 434 (CAS CATO-CPTD788434)
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