3-Methylpyridine-2-carboxylic Acid CAS 4021-07-2
| CAS No. | 4021-07-2 |
| Molecular Formula | C7H7NO2 |
| Molecular Weight | 137.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-Methylpyridine-2-carboxylic Acid (C7H7NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 137.14 g/mol, it falls into the low-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
3-Methylpyridine-2-carboxylic Acid (CAS 4021-07-2), molecular formula C7H7NO2 and molecular weight 137.14 g/mol, is a CATO reference standard with documented purity and traceability.
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), 3-Methylpyridine-2-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.
Physical & Chemical Properties
| Molecular Formula | C7H7NO2 |
| Molecular Weight | 137.14 g/mol |
| Purity | >95% |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Methylpyridine Standards
- 4-Methylpyridine-3-carboxylic acid (CAS 3222-50-2)
- 5-Ethyl-2-methylpyridine 1-oxide (CAS 768-44-5)
- 6-Methylpyridine-2-ethanol (CAS 934-78-1)
- 4-Methylpyridine-3-boronic Acid (CAS 148546-82-1)
- 2-Methylpyridine-3-boronic Acid (CAS 899436-71-6)
- 2-Methylpyridine-4-boronic Acid (CAS 579476-63-4)
- 3-Methylpyridine-2-boronic Acid (CAS 930303-26-7)
- 3-Methylpyridine-4-boronic Acid (CAS 894808-72-1)
Recommended Standards
- 【禁售不询】Anthranilic acid (CAS 118-92-3)
- 3,4-Methylenedioxyaniline (CAS 14268-66-7)
- Trigonelline (CAS 535-83-1)
- 5-Methylpyrazine-2-carboxamide (CAS 5521-57-3)
- 2-Bromo-5-(difluoromethyl)-6-iodonicotinic acid (CAS 1805415-66-0)
- (1,2,3,4-Tetrahydronaphthalen-2-yl)methanamine hydrochloride (CAS 136759-34-7)
- 4-(((2-Hydroxyethyl)(methyl)amino)methyl)-3-iodobenzoic acid (CAS 1131622-46-2)
- 3-(prop-1-en-2-yl)furan-2-carboxylic acid (CAS 2289744-96-1)
- Phosphoric acid, lanthanum(3+) salt (CAS 13778-59-1)
- 3-Bromo-5-(2-fluoropropan-2-yl)benzoic acid (CAS 2648588-81-0)
- (R)-2-Amino-3-mercapto-2-methylpropanoic acid (CAS 441317-73-3)
- 3-Bromo-4-((trifluoromethyl)thio)phenol (CAS 1639457-45-6)
- Methyl 2-[(2,4-dichlorobenzoyl)amino]-3-(4-methoxyanilino)acrylate (CAS 1164529-79-6)
- Semaglutide impurity 01 (CAS 1998701-31-7)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com