3-Cyano-2-methylbenzoic acid CAS 3843-99-0
| CAS No. | 3843-99-0 |
| Molecular Formula | C9H7NO2 |
| Molecular Weight | 161.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Cyano-2-methylbenzoic acid (CAS 3843-99-0), molecular formula C9H7NO2 and molecular weight 161.16 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Cyano-2-methylbenzoic acid (C9H7NO2) is characterized by an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 3-Cyano-2-methylbenzoic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
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.) | 1958 |
| 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)
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- 2-Cyano-2-phenylacetic Acid (CAS 14025-79-7)
- 4-Cyano-2-methylbenzoic Acid (CAS 1975-53-7)
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Recommended Standards
- 3-Aminoquinoxalin-5-ol (CAS 659729-72-3)
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- 3-Cyanophenyl acetate (CAS 55682-11-6)
- 1-(3-Bromo-4-fluorobenzyl)-4-iodo-1H-pyrazole (CAS 1494658-33-1)
- 1-(3-Aminopropyl)-1H-pyrrole-2,5-dione hydrochloride (CAS 1257852-74-6)
- Diethyl 2,2’-(1,3-Dioxolane-2,2-diyl)diacetate (CAS 71022-90-7)
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