2-(3,5-Dichloro-2-hydroxyphenyl)acetic acid CAS 38692-69-2
| CAS No. | 38692-69-2 |
| Molecular Formula | C8H6Cl2O3 |
| Molecular Weight | 221.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(3,5-Dichloro-2-hydroxyphenyl)acetic acid 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.
CATO supplies 2-(3,5-Dichloro-2-hydroxyphenyl)acetic acid (CAS 38692-69-2), a certified reference material (molecular formula C8H6Cl2O3, MW 221.04 g/mol) for analytical method development and quality control.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2-(3,5-Dichloro-2-hydroxyphenyl)acetic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 221.04 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 | C8H6Cl2O3 |
| Molecular Weight | 221.04 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.) | 1968 |
| Halogen Content | Cl-containing |
Related Dichloro Standards
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- Methyl 2,4-dichloro-3-hydroxybenzoate (CAS 129788-30-3)
- 4,5-Dichloro-2-(2-oxopropyl)pyridazin-3(2H)-one (CAS 130159-58-9)
- Methyl 2,6-dichloro-3-hydroxybenzoate (CAS 142601-42-1)
- 3,4-Dichloro-2-methoxybenzoic acid (CAS 155382-86-8)
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- Methyl 2,4-dichloro-5-hydroxybenzoate (CAS 1806282-22-3)
Recommended Standards
- 2-(3,4-Dichlorophenyl)-2-hydroxyacetic acid (CAS 56071-99-9)
- 2-(3,5-Dichlorophenyl)-2-hydroxyacetic acid (CAS 35599-94-1)
- 2-(2,6-Dichlorophenyl)-2-hydroxyacetic acid (CAS 35599-93-0)
- 2-(3,5-Dichlorophenyl)-2-oxo-acetaldehyde (CAS 93291-00-0)
- Acetyl-<SUP>13</SUP>C<SUB>2</SUB>-<SC>L</SC>-carnitine hydrochloride (CAS 1219093-38-5)
- 2-(4-Amino-2-(trifluoromethyl)phenyl)acetonitrile (CAS 1824663-54-8)
- Tert-butyl 8-amino-2-azadispiro[3.1.3(6).1(4)]Decane-2-carboxylate (CAS 2167233-72-7)
- 4,5-Dibromothiophene-2-sulfonyl chloride (CAS 81606-31-7)
- Minocycline EP Impurity G DiTFA salt (CAS 601455-95-2(free base))
- Methyl 2-(3-((tert-butoxycarbonyl)amino)bicyclo[1.1.1]pentan-1-yl)acetate (CAS 1995848-08-2)
- Trimethyl((3'-nitro-[1,1'-biphenyl]-4-yl)oxy)silane (CAS 923294-79-5)
- N-(4-phenylthiazol-2-yl)-2-(m-tolylthio)acetamide (CAS 338957-85-0)
- 4-Ethyl 2-methyl 5-amino-3-(2-methoxy-2-oxoethyl)thiophene-2,4-dicarboxylate (CAS 853723-86-1)
- Semaglutide impurity 89 (CAS CATO-C4X-222689)
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