5-Chloro-2-methoxyphenol CAS 3743-23-5
| CAS No. | 3743-23-5 |
| Molecular Formula | C7H7ClO2 |
| Molecular Weight | 158.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5-Chloro-2-methoxyphenol (CAS 3743-23-5), molecular formula C7H7ClO2 and molecular weight 158.58 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Chloro-2-methoxyphenol (C7H7ClO2) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5-Chloro-2-methoxyphenol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H7ClO2 |
| Molecular Weight | 158.58 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 2-Chloro-4-(hydroxymethyl)phenol (CAS 105960-29-0)
- 2-Chloro-1-(furan-2-yl)propan-1-one (CAS 106430-52-8)
- 3-Chloro-2-(hydroxymethyl)phenol (CAS 1094627-55-0)
- 4-Chloro-3-hydroxybenzyl alcohol (CAS 1261598-26-8)
- 2-Chloro-1-(4-methylfuran-2-yl)ethanone (CAS 133674-52-9)
- 2-Chloro-1-(3-methylfuran-2-yl)ethan-1-one (CAS 1502390-71-7)
- 2-Chloro-1-(2-methylfuran-3-yl)ethan-1-one (CAS 1543126-21-1)
- 3-Chloro-4-(hydroxymethyl)phenol (CAS 171569-42-9)
Recommended Standards
- 5-Chloro-2-(hydroxymethyl)phenol (CAS 64917-81-3)
- 6-(Chloromethyl)-4-methyl-2H-pyran-2-one (CAS 4394-75-6)
- 4-CHLORO-5-METHYLBENZENE-1,3-DIOL (CAS 3446-05-7)
- Piribedil Impurity 2 (CAS CATO-C4X-28132)
- N-(2-Methylbenzo[d]thiazol-5-yl)-2-phenoxyacetamide (CAS 327073-18-7)
- 2-Picoline-5-boronic acid hydrate (CAS 1072952-30-7)
- (R)-2-(2,4-bis(trifluoromethyl)phenyl)piperidine (CAS 1212980-61-4)
- (S)-N-(1-cycloheptylethyl)thietan-3-amine (CAS 1867127-36-3)
- tert-Butyl N-(3-hydroxy-3-methylcyclobutyl)carbamate (CAS 1427329-27-8)
- 5-Chloro-2-methoxy-N-(2-methoxyethyl)-4-methylbenzenesulfonamide (CAS 1087640-21-8)
- n-(4-Ethoxyphenyl)furan-2-carboxamide (CAS 60943-79-5)
- 1,2,3-Benzothiadiazole-5-carbonyl chloride 321309-32-4 benzo[d][1,2,3]thiadiazole-5-carbonyl chloride (CAS 321309-32-4)
- (3-Amino-2-hydroxyphenyl)(azetidin-1-yl)methanone (CAS 464913-37-9)
- Custom peptides (CAS CATO-CPTD788509)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com