1-(2,4-Dihydroxy-6-methylphenyl)-2-phenoxyethan-1-one CAS 956239-87-5
| CAS No. | 956239-87-5 |
| Molecular Formula | C20H23ClN2O2 |
| Molecular Weight | 358.86 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 1-(2,4-Dihydroxy-6-methylphenyl)-2-phenoxyethan-1-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 358.86 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
1-(2,4-Dihydroxy-6-methylphenyl)-2-phenoxyethan-1-one (CAS 956239-87-5), molecular formula C20H23ClN2O2 and molecular weight 358.86 g/mol, is a CATO reference standard with documented purity and traceability.
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 | C20H23ClN2O2 |
| Molecular Weight | 358.86 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dihydroxy Standards
- 1,1'-(6,6'-Dihydroxy-5,5'-dimethoxy-[1,1'-biphenyl]-3,3'-diyl)bis(propan-1-one) (CAS 18592-97-7)
- 1,8-Dihydroxy-3-methyl-2-phenethylanthracene-9,10-dione (CAS 62955-02-6)
- 2,4-Dihydroxy-3-tosylquinoline-7-carboxylic acid (CAS 892271-80-6)
- (3α,5β,7β)-3,7-Dihydroxy-24-norcholane-23-nitrile (CAS 118316-12-4)
- 1',4-Dihydroxy Midazolam (1.0mg/ml in Acetonitrile) (CAS 64740-68-7)
- 2-(2,4-Dihydroxy-5-methoxyphenyl)-5-hydroxy-6,7-dimethoxy-4H-chromen-4-one (CAS 83162-82-7)
- 5,6-Dihydroxy-2-(4-hydroxy-3-methoxyphenyl)-3,7-dimethoxy-4H-chromen-4-one (CAS 23370-16-3)
- 1,4-Dihydroxy-2-(2-methoxybenzyl)anthracene-9,10-dione (CAS 63776-13-6)
Recommended Standards
- 5-Chloro-2-((1-(thiophen-2-ylsulfonyl)piperidin-4-yl)oxy)pyridine (CAS 1448044-27-6)
- 1-(4-Chlorophenyl)-2-hydroxy-4-(4-phenyl-1-piperazinyl)-1-butanone (CAS 51037-53-7)
- tert-Butyl 1-(2-chloropyridin-4-yl)-4,5-dihydro-1H-benzo[c]azepine-2(3H)-carboxylate (CAS 1445951-02-9)
- 2-Chloro-N-(3-(2-phenylmorpholino)propyl)benzamide (CAS 954046-88-9)
- (E)-3-(5-Bromo-2-methoxypyridin-3-yl)acrylic acid (CAS 1228963-18-5)
- 2,4-Diamino-6-methylpyrimidine-5-carbonitrile (CAS 7466-13-9)
- n-(Sec-butyl)-2-(4-oxothiazolidin-3-yl)acetamide (CAS 1209177-03-6)
- N-(4-amino-3-methylphenyl)-3-chlorobenzamide (CAS 1285097-46-2)
- 1-(6-Bromo-4-hydroxypyridin-3-yl)ethanone (CAS 1260672-38-5)
- N,N-Dimethyl-4-phenyl-1H-imidazole-1-carboxamide (CAS 73462-95-0)
- (S)-3,4-Dimethyloxazolidine-2,5-dione (CAS 58311-53-8)
- 4-(((1-Ethyl-1H-pyrazol-4-yl)amino)methyl)-2-methoxyphenol (CAS 1006464-15-8)
- 4-Cyano-3-methoxybenzoic acid (CAS 102362-00-5)
- Semaglutide impurity 257 (CAS CATO-C4X-2226257)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com