(2,4-Dichloro-6-methylphenoxy)acetic acid CAS 13333-87-4
| CAS No. | 13333-87-4 |
| Molecular Formula | C9H8Cl2O3 |
| Molecular Weight | 235.06 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies (2,4-Dichloro-6-methylphenoxy)acetic acid (CAS 13333-87-4), a certified reference material (molecular formula C9H8Cl2O3, MW 235.06 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H8Cl2O3, (2,4-Dichloro-6-methylphenoxy)acetic acid contains a carboxylic acid 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 235.06 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C9H8Cl2O3 |
| Molecular Weight | 235.06 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1960 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
- Ethyl 4,5-dichloro-2-hydroxybenzoate (CAS 104391-51-7)
- Methyl 4,5-dichloro-2-methoxybenzoate (CAS 1239783-16-4)
- Ethyl 2,4-dichloro-3-hydroxybenzoate (CAS 129788-29-0)
- Ethyl 2,4-dichloro-6-hydroxybenzoate (CAS 132629-98-2)
- 2-(2,6-Dichloro-4-methylphenoxy)acetic Acid (CAS 15118-82-8)
- 2-(2,4-Dichloro-5-methylphenoxy)acetic acid (CAS 1556-01-0)
- 2-(2,5-Dichloro-4-methylphenoxy)acetic acid (CAS 1585-30-4)
- Methyl 2,5-dichloro-3-methoxybenzoate (CAS 165377-90-2)
Recommended Standards
- 4-Bromo-2-formylthiophene-3-carboxylic acid (CAS 1334640-34-4)
- 2-(3,4-Dichlorophenyl)-2-methoxyacetic acid (CAS 13911-20-1)
- 3-(2,3-Dichlorophenyl)-3-hydroxypropanoic acid (CAS 1251330-76-3)
- 5-Bromo-2-formylthiophene-3-carboxylic acid (CAS 1397285-28-7)
- 2-Chloro-4,5-difluorobenzo[d]thiazole (CAS 898748-69-1)
- N2,N6-Bis(benzyloxycarbonyl)-L-homoglutamine (CAS 88462-80-0)
- 2-(4-Bromo-3-fluorophenoxy)nicotinonitrile (CAS 1516062-79-5)
- tert-Butyl (7S,8aS)-rel-7-amino-octahydropyrrolo[1,2-a]piperazine-2-carboxylate (CAS 1214629-88-5)
- (R)-Methoprene (CAS 65733-17-7)
- 3-Phenylthietan-3-ol (CAS 66982-46-5)
- 2-chloro-3-(dibromomethyl)Thiophene (CAS 57846-02-3)
- 5-(Bromomethyl)-2,3-dihydrobenzofuran (CAS 196598-26-2)
- 1-Cyclopentyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidine-5-carbonitrile (CAS 1242281-88-4)
- Protein Kinase C (alpha) Peptide (CAS 159939-84-1)
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