Ethyl 3-chloro-5-ethoxy-4-((2-methylbenzyl)oxy)benzoate CAS 1706457-95-5
| CAS No. | 1706457-95-5 |
| Molecular Formula | C19H21ClO4 |
| Molecular Weight | 348.82 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 Ethyl 3-chloro-5-ethoxy-4-((2-methylbenzyl)oxy)benzoate.
Ethyl 3-chloro-5-ethoxy-4-((2-methylbenzyl)oxy)benzoate (CAS 1706457-95-5), molecular formula C19H21ClO4 and molecular weight 348.82 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Ethyl 3-chloro-5-ethoxy-4-((2-methylbenzyl)oxy)benzoate (C19H21ClO4) is characterized by a flavonoid core, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), 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.
As a certified reference material (CRM), Ethyl 3-chloro-5-ethoxy-4-((2-methylbenzyl)oxy)benzoate 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.
Physical & Chemical Properties
| Molecular Formula | C19H21ClO4 |
| Molecular Weight | 348.82 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Halogen Content | Cl-containing |
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Recommended Standards
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- Bisphenol F Glycidyl (2-Chloro-1-propanol) Ether (CAS 194672-61-2)
- 8-Chloro-4-hydroxy-N-(5-isopropyl-1,3,4-thiadiazol-2-yl)quinoline-3-carboxamide (CAS 951975-08-9)
- 3-hydroxy-4-[(2-Methoxy-5-methyl-4-sulfophenyl)azo]-2,7-Naphthalenedisulfonic acid trisodium salt (CAS 61660-30-8)
- Boc-D-His-OH (CAS 50654-94-9)
- 5,7-Dibromochroman-4-amine (CAS 1359703-22-2)
- (R,R)-2-Bn-Sabox-Bn (CAS 2634687-70-8)
- Emtricitabine Impurity 58 (CAS CATO-C4X-123258)
- Cefaclor Impurity 23 (CAS 1426173-90-1)
- 4-Allyl-5-((3,4-dimethylphenoxy)methyl)-4H-1,2,4-triazole-3-thiol (CAS 669740-12-9)
- 3-(2-((Dimethylamino)methyl)-1-hydroxycyclopentyl)phenol (CAS 73825-72-6)
- 5-Bromo-2-mercaptobenzoic acid (CAS 61954-80-1)
- Semaglutide Impurity 144 (CAS 394210-59-4)
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