2-(3,4-Dichlorophenyl)-2-hydroxyacetic acid CAS 56071-99-9
| CAS No. | 56071-99-9 |
| Molecular Formula | C8H6Cl2O3 |
| Molecular Weight | 221.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 2-(3,4-Dichlorophenyl)-2-hydroxyacetic acid.
2-(3,4-Dichlorophenyl)-2-hydroxyacetic acid (CAS 56071-99-9), molecular formula C8H6Cl2O3 and molecular weight 221.04 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H6Cl2O3, 2-(3,4-Dichlorophenyl)-2-hydroxyacetic 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 221.04 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.
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 manufactures 2-(3,4-Dichlorophenyl)-2-hydroxyacetic acid 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.
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.) | 1973 |
| Halogen Content | Cl-containing |
Related Dichlorophenyl Standards
- 2-(2,3-Dichlorophenyl)-2-hydroxyacetic acid (CAS 35599-91-8)
- 2-(2,4-Dichlorophenyl)-2-hydroxyacetic acid (CAS 7554-78-1)
- 2-(2,6-Dichlorophenyl)-2-hydroxyacetic acid (CAS 35599-93-0)
- 2-(3,5-Dichlorophenyl)-2-hydroxyacetic acid (CAS 35599-94-1)
- 2-(3,5-Dichlorophenyl)-2-oxo-acetaldehyde (CAS 93291-00-0)
- 2,4-Dichlorophenyl methyl carbonate (CAS 5335-03-5)
- 1-(2,4-Dichlorophenyl)-2-methoxyethan-1-ol (CAS 1514244-63-3)
- 1-(2,4-Dichlorophenyl)propane-1,3-diol (CAS 862188-30-5)
Recommended Standards
- 2-(3,5-Dichloro-2-hydroxyphenyl)acetic acid (CAS 38692-69-2)
- 2-(1-Bromoethyl)-1,4-difluorobenzene (CAS 655-10-7)
- 2,3-Dichloro-4-methoxybenzoic acid (CAS 55901-80-9)
- 1-Bromo-4-ethyl-2,3-difluoro-benzene (CAS 928304-50-1)
- 2,4-Bis(allyloxy)-6-(decyloxy)-1,3,5-triazine (CAS 85896-26-0)
- 2-((tert-Butoxycarbonyl)amino)-5-methylthiazole-4-carboxylic acid (CAS 547763-09-7)
- 1-((Tetrahydrofuran-3-yl)methyl)-1H-pyrazol-5-amine (CAS 1052564-96-1)
- 1-(4-Butoxy-3-methylphenyl)ethanone (CAS 14794-63-9)
- (Z)-[(4-Bromophenyl)[2-(4-chlorophenyl)cyclopropyl]methylidene][(2-chloro-6-fluorophenyl)methoxy]amine (CAS 338416-02-7)
- 5-bromo-6-fluoro-1H-indole-3-carboxylic acid (CAS 1638772-16-3)
- Methyl 3-(1,3,5-trimethyl-1H-pyrazol-4-yl)propanoate (CAS 1208460-15-4)
- 5,8-Dimethoxy-2,3-diphenylquinoxaline (CAS 19506-24-2)
- 3-Aminocyclohexanecarbonitrile (CAS 1314937-63-7)
- Eledoisin Related Peptide (CAS 2990-43-4)
Why CATO?
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