1-(5-Chloro-2,4-dihydroxyphenyl)propan-1-one CAS 85131-64-2
| CAS No. | 85131-64-2 |
| Molecular Formula | C9H9ClO3 |
| Molecular Weight | 200.62 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-2,4-dihydroxyphenyl)propan-1-one (CAS 85131-64-2), molecular formula C9H9ClO3 and molecular weight 200.62 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 1-(5-Chloro-2,4-dihydroxyphenyl)propan-1-one (C9H9ClO3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. 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 200.62 g/mol, it falls into the medium-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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H9ClO3 |
| Molecular Weight | 200.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; 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.) | 1981 |
| Halogen Content | Cl-containing |
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Recommended Standards
- 1-(3-Chloro-4-methoxyphenyl)-2-hydroxyethan-1-one (CAS 927802-05-9)
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- 1-(2-Chloro-6-nitrophenyl)-N-methylmethanamine (CAS 94108-15-3)
- 1-(5-Chloro-2-methoxyphenyl)urea (CAS 202823-21-0)
- (2E,6E,10E,14E)-3,7,11,15,19-Pentamethylicosa-2,6,10,14,18-pentaen-1-ol (CAS 22488-05-7)
- N-(4-Chlorobenzyl)-2-((6-((2-chlorobenzyl)amino)pyrimidin-4-yl)thio)acetamide (CAS 1251699-02-1)
- (4R)-4-Aminopyrrolidin-2-one dihydrochloride (CAS 1909288-00-1)
- Furan-2-yl(2-methoxyphenyl)methanol (CAS 60907-93-9)
- 5-Chloro-2,3-dihydro-1H-inden-4-ol (CAS 90649-72-2)
- (S)-Benzyl 3-(aminomethyl)piperidine-1-carboxylate (CAS 1217977-05-3)
- Ethyl (E)-2-(2-phenylhydrazono)propanoate (CAS 13732-33-7)
- ((2R,3R,4S,5R)-3,4,5,6-Tetrahydroxy-1-oxohexan-2-yl)sulfamic acid (CAS 4607-22-1)
- 3,3,6,8-Tetramethyl-1-tetralone (CAS 5409-55-2)
- Insulin Degludec Impurity 6 (CAS CATO-C4X-21576)
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