4-[4-[5-(5-Chloro-6-isopropoxy-3-pyridyl)-1,2,4-oxadiazol-3-yl]-1-indolyl]butanoic Acid CAS 1034688-30-6
| CAS No. | 1034688-30-6 |
| Molecular Formula | C22H21ClN4O4 |
| Molecular Weight | 440.88 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 440.88 g/mol gives 4-[4-[5-(5-Chloro-6-isopropoxy-3-pyridyl)-1,2,4-oxadiazol-3-yl]-1-indolyl]butanoic Acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-[4-[5-(5-Chloro-6-isopropoxy-3-pyridyl)-1,2,4-oxadiazol-3-yl]-1-indolyl]butanoic Acid (CAS 1034688-30-6), molecular formula C22H21ClN4O4 and molecular weight 440.88 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-[4-[5-(5-Chloro-6-isopropoxy-3-pyridyl)-1,2,4-oxadiazol-3-yl]-1-indolyl]butanoic Acid (C22H21ClN4O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 440.88 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).
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.
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.
Physical & Chemical Properties
| Molecular Formula | C22H21ClN4O4 |
| Molecular Weight | 440.88 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Chloro Standards
- 4-(4-((3-(5-Chloro-2-methoxyphenyl)ureido)methyl)phenoxy)-N-methylpicolinamide (CAS 1349244-89-8)
- N-(4-{[3-chloro-5-(trifluoromethyl)pyridin-2-yl]methyl}phenyl)-4-methylbenzene-1-sulfonamide (CAS 478246-36-5)
- 3-Chloro-2-oxopropyl 2-(N-((4,6-dimethylpyrimidin-2-yl)carbamoyl)sulfamoyl)benzoate (CAS 1781241-33-5)
- 4-[2-[5-Chloro-1,2-dihydro-2-oxo-1-(phenylmethyl)-3H-indol-3-ylidene]hydrazinyl]benzenesulfonamide (CAS 2380245-48-5)
- N-(5-Chloro-3-(phenylsulfonyl)-1H-indol-2-yl)-2-phenoxyacetamide (CAS 918493-89-7)
- (E)-[3-(4-{4-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]piperazin-1-yl}phenyl)-3-oxopropylidene](methyl)oxidoazanium (CAS 303151-65-7)
- 1-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-N'-[(1E)-(4-methoxyphenyl)methylidene]piperidine-4-carbohydrazide (CAS 338761-38-9)
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Recommended Standards
- CC-885 (CAS 1010100-07-8)
- RSL3 (CAS 1219810-16-8)
- Dapagliflozin Impurity 25 (CAS 2452300-94-4)
- Dapagliflozin Impurity 211 (CAS CATO-C4X-1138211)
- 1-Fluoro-2-methyl-4-(2-methylallyl)benzene (CAS 869493-79-8)
- 4-Bromo-6-fluoro-2-methyl-2,3-dihydro-1H-inden-1-one (CAS 892575-68-7)
- 4-Ethoxynicotinic acid (CAS 53623-62-4)
- (3aS,7aR)-Tert-butyl octahydro-1H-pyrrolo[2,3-c]pyridine-1-carboxylate hydrochloride (CAS 2459946-42-8)
- 2-Amino-4-cyano-5-imidazolecarboxamide (CAS 125815-68-1)
- 1-(4-(Bromomethyl)phenyl)-1H-1,2,4-triazole (CAS 58419-69-5)
- N-(7-Methoxy-2-oxo-2H-chromen-3-yl)acetamide (CAS 33259-45-9)
- 7A-hydroxy-3,6-dimethyl-5,6,7,7a-tetrahydrobenzofuran-2(4H)-one (CAS 71656-71-8)
- N-((1-Ethyl-5-fluoro-3-methyl-1H-pyrazol-4-yl)methyl)-2-morpholinoethan-1-amine hydrochloride (CAS 1856067-16-7)
- Neuropeptide Y, human (CAS 98264-90-5)
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