2-Chloro-1-(2-hydroxy-5-methylphenyl)ethan-1-one CAS 22307-94-4
| CAS No. | 22307-94-4 |
| Molecular Formula | C9H9ClO2 |
| Molecular Weight | 184.62 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2-Chloro-1-(2-hydroxy-5-methylphenyl)ethan-1-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 184.62 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
2-Chloro-1-(2-hydroxy-5-methylphenyl)ethan-1-one (CAS 22307-94-4) is a high-purity analytical reference standard with the molecular formula C9H9ClO2 and a molecular weight of 184.62 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H9ClO2 |
| Molecular Weight | 184.62 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1963 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-(3-Chloro-4-methylphenyl)acetic acid (CAS 1000515-63-8)
- 2-(2-chloro-3-methylphenyl)acetic acid (CAS 1000518-49-9)
- 2-Chloro-5-methoxy-4-methylbenzaldehyde (CAS 100948-46-7)
- 2-Chloro-6-(cyclopropylmethoxy)pyrazine (CAS 1019493-28-7)
- 3-Chloro-6-(cyclopropylmethoxy)pyridazine (CAS 1019619-79-4)
- 2-Chloro-6-ethoxybenzaldehyde (CAS 1021230-95-4)
- 3-Chloro-4-methoxybenzimidamide (CAS 102151-35-9)
- 3-Chloro-2-methylbenzhydrazide (CAS 1022873-06-8)
Recommended Standards
- 2-Chloro-1-(2-hydroxy-3-methylphenyl)ethan-1-one (CAS 75717-51-0)
- 2-Chloro-1-(2-methoxyphenyl)ethanone (CAS 53688-19-0)
- 2-Amino-N-(3-chlorophenyl)acetamide (CAS 690947-13-8)
- 2-Chloro-1-(3-methoxyphenyl)ethan-1-one (CAS 82772-51-8)
- 4’-Hydroxy-2’-(trifluoromethyl)acetophenone (CAS 220227-53-2)
- 1,2-Dichloro-4-(3-nitrophenyl)benzene (CAS 1365271-51-7)
- 1-(2-Iodophenyl)-N-methylmethanamine (CAS 113258-86-9)
- 2,6-Dichloro-3-phenylpropiophenone (CAS 898788-99-3)
- (S)-2-(Pyrrolidin-3-yloxy)pyridine hydrochloride (CAS 1421020-28-1)
- (S)-3-Amino-3-(3,5-dimethoxyphenyl)propanoic acid (CAS 792183-19-8)
- 3-Fluoro-5-(methoxycarbonyl)benzeneboronic acid pinacol ester, 97% (CAS 1016979-31-9)
- 4-Chloro-N'-methyl-N'-[2-(methylsulfanyl)quinazolin-4-yl]benzohydrazide (CAS 341968-18-1)
- 2-(4-ethylphenyl)pyrazolo[1,5-a]pyrazin-4(5H)-one (CAS 1338666-34-4)
- Des-Ala21-Tirzepatide (CAS CATO-CPTD788952)
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