2-Chloro-3-pyridinecarboxaldehyde CAS 36404-88-3
| CAS No. | 36404-88-3 |
| Molecular Formula | C6H4ClNO |
| Molecular Weight | 141.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 2-Chloro-3-pyridinecarboxaldehyde (CAS 36404-88-3), a certified reference material (molecular formula C6H4ClNO, MW 141.56 g/mol) for analytical method development and quality control.
2-Chloro-3-pyridinecarboxaldehyde (C6H4ClNO) contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), 2-Chloro-3-pyridinecarboxaldehyde 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.) | 1967 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 5-chloro-1-methylpyrazole-4-carbonitrile (CAS 111493-52-8)
- 2-(4-Chloro-1H-pyrazol-1-yl)acetonitrile (CAS 113336-23-5)
- 4-Chloro-3-pyridinecarboxaldehyde (CAS 114077-82-6)
- 2-(4-Chloro-1H-pyrazol-3-yl)acetonitrile (CAS 1708160-38-6)
- 4-Chloro-1-methyl-1h-pyrazole-3-carbonitrile (CAS 175204-86-1)
- 3-Chloro-2-pyridinecarbaldehyde (CAS 206181-90-0)
- 4-Chloro-2-pyridinecarboxaldehyde (CAS 63071-13-6)
- 5-Chloro-1-methyl-1H-imidazole-2-carbonitrile (CAS 36941-61-4)
Recommended Standards
- 2-(5-Chlorofuran-2-yl)acetonitrile (CAS 1936457-37-2)
- 3-Chloroisonicotinaldehyde (CAS 72990-37-5)
- Isonicotinoyl chloride (CAS 14254-57-0)
- 5-(Chloromethyl)furan-3-carbonitrile (CAS 59414-01-6)
- 4-Allylanisole (CAS 140-67-0)
- 1-Ethyl-5-methyl-4-nitro-1h-pyrazole (CAS 1001500-30-6)
- Methyl (4-((4-(thiophen-3-yl)piperidin-1-yl)sulfonyl)phenyl)carbamate (CAS 1797290-69-7)
- 1-(4-Methoxyphenyl)-n-methylmethanesulfonamide (CAS 1420961-22-3)
- [3-(trifluoromethyl)-1H-pyrazol-5-yl]hydrazine (CAS 2566599-97-9)
- 6-Fluoro-4-formylpyridine-2-sulfonyl chloride (CAS 1393530-71-6)
- 3-(Difluoromethyl)-2-fluoro-4-iodopyridine (CAS 1446786-38-4)
- 5-Bromobenzo[b]thiophene-3-carbaldehyde (CAS 16296-72-3)
- 7,7-Difluoro-3,4,6,7,8,9-hexahydropyrazino[1,2-a]indol-1(2H)-one (CAS 1433990-14-7)
- Semaglutide impurity 236 (CAS CATO-C4X-2226236)
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