Etodolac EP Impurity A CAS 41339-67-7
| CAS No. | 41339-67-7 |
| Molecular Formula | C15H17NO3 |
| Molecular Weight | 259.30 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Etodolac EP Impurity A (CAS 41339-67-7) is a certified pharmaceutical impurity reference standard with the molecular formula C15H17NO3 and a molecular weight of 259.30 g/mol.
Etodolac EP Impurity A (C15H17NO3) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
CATO manufactures Etodolac EP Impurity A 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 | C15H17NO3 |
| Molecular Weight | 259.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1968 |
| Nitrogen Atoms | 1 |
Related Etodolac Standards
- Etodolac EP Impurity C (Etodolac USP Related Compound A) (CAS 109518-47-0)
- Etodolac Sodium Salt (CAS 110781-63-0)
- Etodolac EP Impurity B (8-Methyl Etodolac) (CAS 41340-19-6)
- Etodolac EP Impurity J (CAS 115066-03-0)
- (R)-(-)-Etodolac (CAS 87226-41-3)
- (S)-(+)-Etodolac (CAS 87249-11-4)
- Etodolac (CAS 41340-25-4)
- 4-Oxo etodolac (CAS 111478-86-5)
Recommended Standards
- Ethyl trans-1-Boc-4-hydroxypyrrolidine-3-carboxylate (CAS 849935-83-7)
- H-Gly-Ala-Leu-OH (H-3265.0001) (CAS 22849-49-6)
- Ethyl N-(tert-butoxycarbonyl)-N-(2-oxopropyl)glycinate (CAS 873190-14-8)
- H-Gly-DL-Leu-DL-Ala-OH (CAS 78681-93-3)
- Bifonazole impurity 23 (CAS CATO-C4X-156023)
- Trifluridine Impurity 9 (CAS CATO-C4X-20569)
- Crisaborole Impurity 10 (CAS 906673-42-5)
- 2-Cyclohexylaniline (CAS 4806-81-9)
- 2-(Benzo[d]thiazol-2-ylthio)-N-(2,5-dimethylphenyl)acetamide (CAS 332898-67-6)
- 1-(4-Bromobenzyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-carbonitrile (CAS 338748-75-7)
- 1-(Isoxazol-3-yl)ethanamine (CAS 1008985-14-5)
- Methyl 6-acetyl-3,5-diaminopyrazine-2-carboxylate (CAS 135673-70-0)
- 4-Bromo-5-hydroxypicolinaldehyde (CAS 1289060-82-7)
- Des-Pro36-Tirzepatide (CAS CATO-CPTD788937)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com