5-Chloropyridine-2-carbaldehyde CAS 31181-89-2
| CAS No. | 31181-89-2 |
| Molecular Formula | C6H4ClNO |
| Molecular Weight | 141.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 5-Chloropyridine-2-carbaldehyde (C6H4ClNO) is characterized by an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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).
CATO supplies 5-Chloropyridine-2-carbaldehyde (CAS 31181-89-2), a certified reference material (molecular formula C6H4ClNO, MW 141.56 g/mol) for analytical method development and quality control.
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), 5-Chloropyridine-2-carbaldehyde 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 | C6H4ClNO |
| Molecular Weight | 141.56 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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.) | 1965 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloropyridine Standards
- 6-Chloropyridine-3-carboxaldehyde (CAS 23100-12-1)
- 2-Chloropyridine-4-methanol (CAS 100704-10-7)
- 6-Chloropyridine-2,4-diamine (CAS 1206248-43-2)
- 4-Chloropyridine-3,5-diamine (CAS 1221716-06-8)
- 3-Chloropyridine-2,4-diamine (CAS 1232431-15-0)
- 2-Chloropyridine-3,5-diamine (CAS 5632-81-5)
- 3-Chloropyridine-2,5-diamine (CAS 813425-48-8)
- 3-Chloropyridine-4-methanol (CAS 79698-53-6)
Recommended Standards
- 5-Chloro-1-methyl-1H-imidazole-2-carbonitrile (CAS 36941-61-4)
- 6-Chloro-2-pyridinecarbaldehyde (CAS 54087-03-5)
- 5-(Chloromethyl)furan-3-carbonitrile (CAS 59414-01-6)
- 4-Chloro-2-pyridinecarboxaldehyde (CAS 63071-13-6)
- Heptyl hexanoate (CAS 6976-72-3)
- 2-Iodo-4-methoxybenzyl bromide (CAS 332124-25-1)
- 2-((5-(4-Chlorophenyl)-1,3,4-oxadiazol-2-yl)thio)-N-(4-nitrophenyl)acetamide (CAS 84327-87-7)
- 2,3-Diamino-N-(4-(trifluoromethyl)phenyl)benzamide (CAS 1421933-32-5)
- Chlorobis(2-isopropoxyphenyl)phosphine (CAS 1219589-19-1)
- Dexmedetomidine Impurity 27 (CAS 78162-58-0)
- (2,6-Dimethyl-4-propoxyphenyl)(methyl)sulfane (CAS 1379322-45-8)
- 2-(4,5-Dimethyl-1H-imidazol-2-yl)acetic acid (CAS 1314968-45-0)
- 3-(Pentylamino)benzonitrile (CAS 1021115-47-8)
- Biotinyl-S6 Phosphate Acceptor Peptide trifluoroacetate salt (CAS 1815618-12-2)
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