5-(3-Cyanophenyl)isoxazole-3-carboxylic Acid CAS 956360-07-9
| CAS No. | 956360-07-9 |
| Molecular Formula | C11H6N2O3 |
| Molecular Weight | 214.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-(3-Cyanophenyl)isoxazole-3-carboxylic Acid 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.
5-(3-Cyanophenyl)isoxazole-3-carboxylic Acid (CAS 956360-07-9), molecular formula C11H6N2O3 and molecular weight 214.18 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5-(3-Cyanophenyl)isoxazole-3-carboxylic Acid (C11H6N2O3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 214.18 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C11H6N2O3 |
| Molecular Weight | 214.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 2 |
Related Cyanophenyl Standards
- 3-(3-Cyanophenyl)-1,2-oxazole-5-carboxylic acid (CAS 1152531-77-5)
- 3-(4-Cyanophenyl)isoxazole-5-carboxylic acid (CAS 1152531-86-6)
- 5-(4-Cyanophenyl)isoxazole-3-carboxylic Acid (CAS 1375064-45-1)
- 5-(3-Cyanophenyl)-4H-1,2,4-triazole-3-carboxylic acid (CAS 944906-65-4)
- 5-(4-cyanophenyl)-1,3-oxazole-4-carboxylic acid (CAS 914220-32-9)
- N-(3-cyanophenyl)-2,2,2-trifluoroacetamide (CAS 141990-92-3)
- (3-Cyanophenyl)boronic acid, neopentyl glycol ester (CAS 214360-45-9)
- 4-(3-Cyanophenyl)-2-fluorophenol (CAS 1261978-55-5)
Recommended Standards
- 5-(2-Nitrophenyl)furan-2-carbonitrile (CAS 57666-58-7)
- 5-Acetamido-2,6-dioxohexahydropyrimidine-4-carboxamide (CAS 61212-06-4)
- 4-Nitrobenzo[cd]indol-2(1H)-one (CAS 28440-62-2)
- 5-Amino-3-(carboxymethyl)-4-oxo-1,4,5,6-tetrahydropyridine-2-carboxylic acid (CAS 84986-74-3)
- Piperidin-4-yl(pyridin-2-yl)methanol dihydrochloride (CAS 1609400-29-4)
- Methyl 2-([2,2'-bipyridin]-6-ylmethoxy)benzoate (CAS 192227-33-1)
- 4-Methoxyfuro[2,3-b]pyridine (CAS 193624-92-9)
- 2-chloro-N-{[(2,2,2-trifluoroethyl)amino]carbonyl}acetamide (CAS 870692-94-7)
- (2Z)-2-[(3-Nitrophenyl)methylidene]-1-azabicyclo[2.2.2]octan-3-one (CAS 875299-80-2)
- 4-Cyano-5-(difluoromethyl)-3-hydroxy-2-iodopyridine (CAS 1805355-04-7)
- [1-(2,3-dihydro-1-benzofuran-2-yl)ethyl](methyl)amine hydrochloride (CAS 21645-93-2)
- Polyethylene Glycol Monooleyl Ether (n=approx. 20) (CAS 9004-98-2)
- Maytansinoid DM4 (CAS 799840-96-3)
- Biotinyl-Glucagon (1-29) (human, rat, porcine) trifluoroacetate salt (CAS 1802086-28-7)
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