(5-Chloro-2-hydroxy-1,3-phenylene)dimethanol CAS 17026-49-2
| CAS No. | 17026-49-2 |
| Molecular Formula | C8H9ClO3 |
| Molecular Weight | 188.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
(5-Chloro-2-hydroxy-1,3-phenylene)dimethanol (CAS 17026-49-2) is a high-purity analytical reference standard with the molecular formula C8H9ClO3 and a molecular weight of 188.61 g/mol.
The molecular framework of (5-Chloro-2-hydroxy-1,3-phenylene)dimethanol (C8H9ClO3) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C8H9ClO3 |
| Molecular Weight | 188.61 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1961 |
| Halogen Content | Cl-containing |
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Recommended Standards
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- tert-Butyl 5-amino-3-(1-(tert-butoxycarbonyl)piperidin-4-yl)-1H-indazole-1-carboxylate (CAS 2577379-42-9)
- n-(3-Methoxybenzyl)adamantan-1-amine (CAS 416891-29-7)
- 2-Benzoyl-3-phenylacrylic acid (CAS 64235-44-5)
- Methyl 4-bromo-2-methyl-5-nitrobenzoate (CAS 22364-35-8)
- Irganox® 3125 (CAS 34137-09-2)
- Methyl 3-fluoro-2-formylbenzoate (CAS 97711-50-7)
- Semaglutide impurity 194 (CAS CATO-C4X-2226194)
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