Etoricoxib p-toluenesulfonic acid CAS 287930-71-6
| CAS No. | 287930-71-6 |
| Molecular Formula | C18H15ClN2O2S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Etoricoxib p-toluenesulfonic acid is closely related to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
Etoricoxib p-toluenesulfonic acid (CAS 287930-71-6), molecular formula C18H15ClN2O2SC7H8O3S and molecular weight 531.04 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of Etoricoxib p-toluenesulfonic acid (C18H15ClN2O2SC7H8O3S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Etoricoxib p-toluenesulfonic 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 | C18H15ClN2O2S C7H8O3S |
| Molecular Weight | 531.04 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Etoricoxib Standards
- Etoricoxib Impurity 18 (CAS 1027162-35-1)
- Etoricoxib Impurity 3 (CAS 10297-73-1)
- Etoricoxib Impurity 82 (CAS 107825-28-5)
- Etoricoxib D4 (CAS 1131345-14-6)
- Etoricoxib Impurity 37 (CAS 118362-28-0)
- Etoricoxib Impurity 13 (CAS 1350206-14-2)
- Etoricoxib Impurity 40 (CAS 1352804-27-3)
- Etoricoxib Impurity 5 Lithium Salt (CAS 1421227-96-4)
Recommended Standards
- 2-methyl-2-(2-methylphenyl)propan-1-amine (CAS 1176768-39-0)
- 5,5-Difluoro-2-azaspiro[3.3]heptane (CAS 1330765-36-0)
- 1-(2-Bromoallyl)-4-(tert-butyl)benzene (CAS 842140-27-6)
- 1-(4-Fluorophenyl)-3-((4-methoxyphenyl)amino)propan-1-one (CAS 37155-08-1)
- 3-amino-6,7-dihydro-1h,5h-pyrazolo[1,2-a]pyrazol-1-one (CAS 69386-85-2)
- (Lys4)-Sarafotoxin C acetate salt (CAS 1219444-22-0)
- 5-Methoxyphthalazine (CAS 1381770-02-0)
- 2,5-Dichlorobenzoyl cyanide (CAS 64985-85-9)
- 2-(Thiophen-2-yl)-1H-pyrrole (CAS 52707-46-7)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
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