2,4-Dichloro-3,5-Dimethylphenol CAS 133-53-9
| CAS No. | 133-53-9 |
| Molecular Formula | C8H8Cl2O |
| Molecular Weight | 191.05 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies 2,4-Dichloro-3,5-Dimethylphenol (CAS 133-53-9), a certified reference material (molecular formula C8H8Cl2O, MW 191.05 g/mol) for analytical method development and quality control.
2,4-Dichloro-3,5-Dimethylphenol (C8H8Cl2O) contains a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H8Cl2O |
| Molecular Weight | 191.05 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- 1,2-Dichloro-5-methoxy-3-methylbenzene (CAS 112369-07-0)
- 1,3-Dichloro-5-ethoxybenzene (CAS 120388-54-7)
- 1,3-Dichloro-5-(methoxymethyl)benzene (CAS 130625-06-8)
- (2,6-Dichloro-3-methylphenyl)methanol (CAS 1378814-84-6)
- 2,6-Dichloro-3,4-dimethylphenol (CAS 1570-67-8)
- 2,6-Dichloro-4-methylbenzenemethanol (CAS 173310-45-7)
- (4,5-Dichloro-2-methylphenyl)methanol (CAS 1785226-43-8)
- 2,3-Dichloro-4-methylbenzyl alcohol (CAS 1803779-26-1)
Recommended Standards
- 4-Chloro-2-(Chloromethyl)-1-Methoxybenzene (CAS 7035-11-2)
- (2,6-Dichloro-3-methylphenyl)hydrazine (CAS 1099660-40-8)
- 4,5-dichloro-2-ethylphenol (CAS 52016-71-4)
- 4,6-Dichloro-2-propylpyrimidine (CAS 1197-28-0)
- 2-Amino-N,N-diethyl-5-fluorobenzamide (CAS 1152508-69-4)
- (4R)-4-FLUORO-L-PROLINE HCL (CAS 60604-36-6)
- 3-Chloro-N-(thiazol-2-yl)propanamide (CAS 26774-38-9)
- Telmisartan Impurity 68 (CAS CATO-C4X-135968)
- (R,E)-(3-((tert-Butoxycarbonyl)amino)but-1-en-1-yl)boronic acid (CAS 2324786-36-7)
- 4-(4-Ethylpiperazin-1-yl)-2-methylaniline (CAS 757192-75-9)
- 4-[(4-Fluorophenyl)methyl]-3-[1-(5-methylthiophene-2-carbonyl)piperidin-4-yl]-4,5-dihydro-1H-1,2,4-triazol-5-one (CAS 1775311-16-4)
- 1-(4-Methyl-2-morpholinopyrimidin-5-yl)ethan-1-one (CAS 66373-28-2)
- Warfarin Impurity 12 (CAS CATO-C4X-142912)
- Calcitonin C-Terminal Flanking Peptide (human) XTFA (CAS 85916-47-8（free base）)
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