2,5-Dichloro-4-pyridinecarboxaldehyde CAS 102645-33-0
| CAS No. | 102645-33-0 |
| Molecular Formula | C6H3Cl2NO |
| Molecular Weight | 176.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C6H3Cl2NO, 2,5-Dichloro-4-pyridinecarboxaldehyde contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 176.00 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
2,5-Dichloro-4-pyridinecarboxaldehyde (CAS 102645-33-0), molecular formula C6H3Cl2NO and molecular weight 176.00 g/mol, is a CATO reference standard with documented purity and traceability.
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), 2,5-Dichloro-4-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 | C6H3Cl2NO |
| Molecular Weight | 176.00 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1986 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichloro Standards
- 2-(4,5-Dichloro-1H-imidazol-1-yl)acetonitrile (CAS 159088-44-5)
- 4,6-Dichloro-2,3-dimethylpyridine (CAS 101252-84-0)
- 2,5-Dichloro-N-methylaniline (CAS 10224-70-1)
- 2,3-Dichloro-5-ethylpyridine (CAS 104310-10-3)
- 2,5-Dichloro-3,6-dimethylpyridine (CAS 125014-98-4)
- 2,3-dichloro-5-methylaniline (CAS 13711-29-0)
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- 3,6-Dichloro-2,4-dimethylpyridine (CAS 1639373-35-5)
Recommended Standards
- 4-Chloronicotinoyl chloride (CAS 100791-00-2)
- 4,5-Dichloropicolinaldehyde (CAS 1060802-04-1)
- 3-FLUORO-5-METHOXYBENZENEBORONIC ACID 3-FLUORO-5-METHOXYPHENYLBORONIC ACID 609807-25-2 BC001008 BORONIC ACID, (3-FLUORO-5-METHOXYPHENYL)- (CAS 609807-25-2)
- 4,6-Dichloronicotinaldehyde (CAS 1060811-62-2)
- Ethyl 1-aminopiperidine-4-carboxylate (CAS 6241-81-2)
- 2-Fluoro-1-methylcyclopropane-1-carboxylic acid (CAS 1314938-96-9)
- Fmoc-Ser(tBu)-OPfp (CAS 105751-13-1)
- O-Methyl-N-(pyrrolidin-3-ylmethyl)hydroxylamine (CAS 739334-93-1)
- 5-Hydroxy-2-isopropylbenzoic acid (CAS 212791-94-1)
- 5-(Azepan-1-yl)furan-2-carbaldehyde (CAS 436088-58-3)
- Cbz-L-Valinol (CAS 6216-65-5)
- 1-Benzyl-3-chloropyrrolidine-3-carbonitrile (CAS 1864016-04-5)
- 1-(4-Acetylphenyl)-2,2,2-trifluoroethan-1-one (CAS 86988-49-0)
- Glucagon receptor antagonist I (CAS 438618-32-7)
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