1-(5-Chloro-4-hydroxypyridin-3-yl)ethan-1-one CAS 1393533-50-0
| CAS No. | 1393533-50-0 |
| Molecular Formula | C7H6ClNO2 |
| Molecular Weight | 171.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
1-(5-Chloro-4-hydroxypyridin-3-yl)ethan-1-one (CAS 1393533-50-0), molecular formula C7H6ClNO2 and molecular weight 171.58 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 1-(5-Chloro-4-hydroxypyridin-3-yl)ethan-1-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 171.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 1-(5-Chloro-4-hydroxypyridin-3-yl)ethan-1-one 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 | C7H6ClNO2 |
| Molecular Weight | 171.58 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
- 3-chloro-4-hydroxybenzamide (CAS 1007578-86-0)
- 4-Chloro-2-methoxynicotinaldehyde (CAS 1008451-58-8)
- 6-Chloro-N'-hydroxypicolinimidamide (CAS 1042151-12-1)
- 2-Chloro-4-hydroxybenzamide (CAS 1046818-83-0)
- 2-Chloro-6-hydroxybenzamide (CAS 1056958-24-7)
- 4-Chloro-5-methoxypyridine-2-carbaldehyde (CAS 1060801-63-9)
- 2-Chloro-5-methoxyisonicotinaldehyde (CAS 1060801-65-1)
- 6-Chloro-5-methoxynicotinaldehyde (CAS 1060801-67-3)
Recommended Standards
- 2-Amino-4-chloro-6-methylpyrimidine-5-carbaldehyde (CAS 1378822-81-1)
- 6-Acetyl-3-chloropyridin-2(1H)-one (CAS 1393539-12-2)
- 5-Chloro-6-methylpicolinic acid (CAS 137778-19-9)
- 2-(Chloromethyl)-4-hydroxynicotinaldehyde (CAS 1393543-56-0)
- (S)-tert-Butyl 2-((S)-sec-butyl)piperazine-1-carboxylate hydrochloride (CAS 1217442-47-1)
- 3-isopropoxyprop-1-yne (CAS 53135-63-0)
- 2-Bromo-1-propoxy-4-(trifluoromethyl)benzene (CAS 1881329-92-5)
- 4-(6-Chloropyridin-3-yl)thiazol-2-amine (CAS 885279-42-5)
- 1-Phenyl-3-trifluoromethyl-1H-pyrazole-4-carbonyl chloride (CAS 1003579-29-0)
- 4-Chloro-7-methyl-1H-indazole-3-carboxylic acid (CAS 1000340-69-1)
- 2,6-Dimethyl-[1,2,4]triazolo[1,5-c]pyrimidin-5(6H)-one (CAS 452324-04-8)
- (S)-2-((tert-butoxycarbonyl)amino)-4,4,4-trifluoro-3,3-dimethylbutanoic acid (CAS 2242426-52-2)
- N-((3-methylcyclobutyl)methyl)cyclopentanamine (CAS 1399656-83-7)
- Tau Peptide (379-408) trifluoroacetate salt (CAS 1246357-53-8)
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