Aspirin Impurity 15 CAS 61414-18-4
| CAS No. | 61414-18-4 |
| Molecular Formula | C12H12O5 |
| Molecular Weight | 236.22 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Aspirin Impurity 15 (CAS 61414-18-4) is a certified pharmaceutical impurity reference standard with the molecular formula C12H12O5 and a molecular weight of 236.22 g/mol.
Structurally, Aspirin Impurity 15 (C12H12O5) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 236.22 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures Aspirin Impurity 15 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 | C12H12O5 |
| Molecular Weight | 236.22 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
Related Aspirin Standards
Recommended Standards
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- Butylphthalide Impurity 32 (CAS 33704-16-4)
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- Pregabalin impurity 107 (CAS CATO-C4X-1312107)
- Osimertinib Impurity 100 (CAS CATO-C4X-2045100)
- Finasteride EP Impurity B (CAS 103335-41-7)
- 1-Isothiazol-4-yl-ethanone (CAS 88511-36-8)
- N-(2-(3,5-dimethyl-1H-pyrazole-1-carbonyl)thiophen-3-yl)-N-ethylbenzenesulfonamide (CAS 1325306-80-6)
- Paricalcitol Impurity 24 (CAS CATO-C4X-138724)
- (2-Bromoethyl)diphenylsulfonium (CAS 247129-84-6)
- Methyl 4-hydroxy-6-(trifluoromethyl)picolinate (CAS 1060810-76-5)
- Methyl 2-(1-Boc-2-piperazinyl)acetate (CAS 183852-65-5)
- Tirzepatide Impurity 26 X TFA Salt (CAS CATO-C4X-324026)
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