Esomeprazole Impurity 40 CAS 86604-80-0
| CAS No. | 86604-80-0 |
| Molecular Formula | C9H13NO2 |
| Molecular Weight | 167.21 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO supplies Esomeprazole Impurity 40 (CAS 86604-80-0), a pharmacopoeial impurity reference standard (molecular formula C9H13NO2, MW 167.21 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Esomeprazole Impurity 40 (C9H13NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 167.21 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C9H13NO2 |
| Molecular Weight | 167.21 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | >90% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1981 |
| Nitrogen Atoms | 1 |
Related Esomeprazole Standards
- Esomeprazole Impurity 105 (CAS 86604-78-6)
- Esomeprazole Impurity 115 (CAS 1424857-83-9)
- Esomeprazole Impurity 28 (CAS 577-72-0)
- Esomeprazole Impurity 44 (CAS 16133-49-6)
- Esomeprazole Impurity 66 (CAS 14248-66-9)
- Esomeprazole Impurity 39 (CAS 92806-98-9)
- Esomeprazole Impurity 97 (CAS 142885-88-9)
- Esomeprazole Impurity 106 (CAS 110464-72-7)
Recommended Standards
- Sildenafil Impurity 40 (CAS 1185292-79-8)
- Ilaprazole Impurity 234 (CAS CATO-C4X-1130234)
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- D-dihydrophenylglycine Methyl Ester (CAS CATO-C4X-114883)
- Salbutamol Impurity 218 (CAS CATO-C4X-1176218)
- Nintedanib Impurity 169 (CAS CATO-C4X-1814169)
- Sodium Fusidate EP Impurity E (CAS CATO-C4X-11975)
- 1-(3-Methylphenyl)-5-(4-phenylphenyl)-1h-pyrazole-3-carboxylic acid (CAS 955964-50-8)
- Ethyl 2-{2,4-dichloro-5-[3-(trifluoromethyl)benzamido]phenoxy}acetate (CAS 338961-36-7)
- Alprazolam EP Impurity F (CAS 37945-07-6)
- 1-(5-((2-Hydroxyethyl)sulfonyl)-2-methoxyphenyl)-3-methyl-1H-pyrazol-5(4H)-one (CAS 85409-61-6)
- Prucalopride Impurity N11 (CAS 748788-39-8)
- [1,1'-Biphenyl]-3,3'-diamine (CAS 2050-89-7)
- Tirzepatide Impurity 19 X TFA Salt (CAS CATO-C4X-324019)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com