Etoricoxib Impurity 82 CAS 107825-28-5
| CAS No. | 107825-28-5 |
| Molecular Formula | C13H17NOS2 |
| Molecular Weight | 267.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Etoricoxib Impurity 82 (CAS 107825-28-5), a pharmacopoeial impurity reference standard (molecular formula C13H17NOS2, MW 267.41 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Etoricoxib Impurity 82 (C13H17NOS2) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 267.41 g/mol, it falls into the medium-molecular-weight range. 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.
As a certified reference material (CRM), Etoricoxib Impurity 82 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 | C13H17NOS2 |
| Molecular Weight | 267.41 g/mol |
| Purity | ≥95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
Related Etoricoxib Standards
- Etoricoxib Impurity 72 (CAS CATO-C4X-108072)
- Etoricoxib Impurity 14 (CAS 307531-95-9)
- Etoricoxib Impurity 35 (CAS 40061-50-5)
- Etoricoxib Impurity 27 (CAS 221615-72-1)
- Etoricoxib Impurity 76 (CAS CATO-C4X-108076)
- Etoricoxib Impurity 88 (CAS CATO-C4X-108088)
- Etoricoxib Impurity 41 (CAS 60891-70-5)
- Etoricoxib Impurity 38 (CAS CATO-C4X-108038)
Recommended Standards
- 4-Hydroxy-7-methoxy-2-phenyl quinoline 20430-72-2 A1-04932 (CAS 20430-72-2)
- Mirogabalin Impurity 114 (CAS CATO-C4X-2924114)
- tert-Butyl undec-10-yn-1-ylcarbamate (CAS 2502300-66-3)
- 4-(((tert-Butyldimethylsilyl)oxy)methyl)-1,2,3-oxathiazolidine 2,2-dioxide (CAS 2383507-59-1)
- Eszopiclone Impurity 26 (CAS 7560-85-2)
- Cefaclor Impurity 64 (CAS CATO-C4X-127064)
- Etoricoxib Impurity 2 (CAS 316149-01-6)
- (4-Amino-2,3-dichlorophenyl)boronic acid (CAS 2304748-34-1)
- 6-Ethyl-2-hydroxyquinoline-3-carbonitrile (CAS 937672-23-6)
- 2-[(4-Methoxyphenyl)methyl]-4-(5-methyl-1,2,4-oxadiazol-3-yl)-1H,2H,3H,5H,6H,7H,8H,9H-pyrimido[1,6-a]azepine-1,3-dione (CAS 1775439-13-8)
- (3-Chloro-benzyl)-(2-trifluoromethylsulfanylethyl)-amine (CAS 1208079-59-7)
- Flumetralin (CAS 62924-70-3)
- 3-(4-Hydroxyphenyl)-1-(4-methoxyphenyl)prop-2-en-1-one (CAS 69704-15-0)
- 103244-41-3 Insulin-like Growth Factor-II fragment 33-40 Ser-Arg-Val-Ser-Arg-Arg-Ser-Arg (CAS 103244-41-3)
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