4-Chloro-2-(hydroxymethyl)-6-nitrophenol CAS 77691-34-0
| CAS No. | 77691-34-0 |
| Molecular Formula | C7H6ClNO4 |
| Molecular Weight | 203.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 4-Chloro-2-(hydroxymethyl)-6-nitrophenol 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.
4-Chloro-2-(hydroxymethyl)-6-nitrophenol (CAS 77691-34-0) is a high-purity analytical reference standard with the molecular formula C7H6ClNO4 and a molecular weight of 203.58 g/mol.
4-Chloro-2-(hydroxymethyl)-6-nitrophenol (C7H6ClNO4) contains an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. It is notably hygroscopic, halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C7H6ClNO4 |
| Molecular Weight | 203.58 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 sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chloro Standards
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Recommended Standards
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- TEST03 (CAS 74504-53-3)
- 3-Cyclopropoxy-2-isopropylisonicotinonitrile (CAS 1243352-62-6)
- Iodocholine iodide (CAS 28508-22-7)
- Methyl 2-(2-chloro-4-formylphenoxy)isonicotinate (CAS 1415719-34-4)
- Rel-tert-butyl ((1R,2S)-2-(4-bromophenyl)cyclopropyl)carbamate (CAS 907196-03-6)
- (2-Fluoro-6-(pyrrolidin-1-yl)pyridin-3-yl)methanol (CAS 1228666-05-4)
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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