4-Cyano-2-methylbenzoic Acid CAS 1975-53-7
| CAS No. | 1975-53-7 |
| Molecular Formula | C9H7NO2 |
| Molecular Weight | 161.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-Cyano-2-methylbenzoic Acid is closely related to an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-Cyano-2-methylbenzoic Acid (CAS 1975-53-7), molecular formula C9H7NO2 and molecular weight 161.16 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C9H7NO2, 4-Cyano-2-methylbenzoic Acid contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 161.16 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), 4-Cyano-2-methylbenzoic 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.
Physical & Chemical Properties
| Molecular Formula | C9H7NO2 |
| Molecular Weight | 161.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 1 |
Related Cyano Standards
- 2-Cyano-1,4-benzodioxan (CAS 1008-92-0)
- 2-Cyano-4-methylbenzoic acid (CAS 1195306-28-5)
- 2-Cyano-5-methylbenzoic acid (CAS 1261758-80-8)
- 5-Cyano-3-methylpicolinamide (CAS 1356037-34-7)
- 3-Cyano-4-methylbenzoic acid (CAS 138642-93-0)
- 2-Cyano-2-phenylacetic Acid (CAS 14025-79-7)
- 5-Cyano-2-methylbenzoic acid (CAS 1975-54-8)
- (R)-4-(Cyano(hydroxy)methyl)-1-methyl-1H-pyrrole-2-carbonitrile (CAS 437709-71-2)
Recommended Standards
- 3-Cyanobenzohydrazide (CAS 19731-01-2)
- 2-Cyanobenzohydrazide (CAS 19731-00-1)
- 3-(Pyridin-4-yl)isoxazol-5-amine (CAS 19790-96-6)
- 1,3-Bis(hydroxymethyl)-1,3,5-triazinan-2-one (CAS 19708-68-0)
- 2-(2-(Difluoromethoxy)-6-fluoro-4-methylphenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2913572-69-5)
- (3-Fluoro-4-(methylsulfonyl)phenyl)methanol (CAS 1564471-90-4)
- (3-Methylcyclohexyl)(2-methylphenyl)methanone (CAS 1248127-98-1)
- 3-Thiomorpholineethanol (CAS 171351-31-8)
- 2-(2,4-Dinitrophenyl)cyclohexanone O-(2-fluorobenzyl)oxime (CAS 478249-71-7)
- 5-(2-Bromophenyl)-1,3,4-oxadiazol-2-amine (CAS 109060-65-3)
- 1H-Indazole-3-carboxamide (CAS 90004-04-9)
- 3-(Bromomethyl)bicyclo[4.2.0]octa-1,3,5-triene (CAS 250337-98-5)
- (2S)-1-methylazetidine-2-carboxylic acid (CAS 255882-95-2)
- Semaglutide impurity 197 (CAS CATO-C4X-2226197)
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