2,4-Dichloro-5-hydroxyaniline CAS 39489-79-7
| CAS No. | 39489-79-7 |
| Molecular Formula | C6H5Cl2NO |
| Molecular Weight | 178.02 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.
CATO supplies 2,4-Dichloro-5-hydroxyaniline (CAS 39489-79-7), a certified reference material (molecular formula C6H5Cl2NO, MW 178.02 g/mol) for analytical method development and quality control.
Based on its molecular formula C6H5Cl2NO, 2,4-Dichloro-5-hydroxyaniline contains an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 178.02 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 2,4-Dichloro-5-hydroxyaniline meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C6H5Cl2NO |
| Molecular Weight | 178.02 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichloro Standards
- 2,6-Dichloro-4-pyridinemethanol (CAS 101990-69-6)
- 2,3-Dichloro-4-methoxypyridine (CAS 1033203-57-4)
- 2,6-Dichloro-3-hydrazinylpyridine (CAS 1035173-57-9)
- 4,6-Dichloro-N-methylpyrimidin-2-amine (CAS 10397-15-6)
- 3,5-Dichloro-2-hydrazinopyridine (CAS 104408-23-3)
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- 4,5-Dichloro-2-methylpyridine 1-oxide (CAS 108005-02-3)
- 2,5-Dichloro-4-methoxypyridine (CAS 1122090-95-2)
Recommended Standards
- 5,6-Dichloropyridine-2,3-diamine (CAS 97941-89-4)
- benzothiophen-5-ylboronic acid (CAS 845872-49-3)
- 5,6-Dichloro-3-pyridinemethanol (CAS 54127-30-9)
- benzothiophen-7-ylboronic acid (CAS 628692-17-1)
- Nα-Benzoyl-L-arginine 4-methoxy-β-naphthylamide hydrochloride (CAS 100900-33-2)
- 4-Fluoropyrimidine-2-methanol (CAS 1806542-06-2)
- 2-Methyl-3-(1,3,4-oxadiazol-2-yl)aniline (CAS 924869-12-5)
- 4-Hydroxy-3,6-dimethyl-1,2-dihydropyridin-2-one (CAS 4664-13-5)
- 2,6-Bis(4-pyridylethynyl)toluene (CAS 865756-45-2)
- 1-(4-Propoxyphenyl)ethane-1-thiol (CAS 1039320-03-0)
- 5-(sec-Pentyl)barbituric Acid (CAS 83-29-4)
- 1-(3-Butoxy-4-methylphenyl)-2,2,2-trifluoroethanone (CAS 1443336-86-4)
- Methyl 3-(2-(2-oxo-2-((2-(trifluoromethyl)phenyl)amino)acetyl)-1H-pyrrol-1-yl)thiophene-2-carboxylate (CAS 477857-79-7)
- Semaglutide impurity 276 (CAS CATO-C4X-2226276)
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