Ebastine EP Impurity D CAS 97928-18-2
| CAS No. | 97928-18-2 |
| Molecular Formula | C19H29NO2 |
| Molecular Weight | 303.44 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.
CATO supplies Ebastine EP Impurity D (CAS 97928-18-2), a pharmacopoeial impurity reference standard (molecular formula C19H29NO2, MW 303.44 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a steroid core, an amide group, a hydroxyl group, an ether linkage, Ebastine EP Impurity D is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 303.44 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
CATO manufactures Ebastine EP Impurity D 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 | C19H29NO2 |
| Molecular Weight | 303.44 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 1 |
Related Ebastine Standards
- Ebastine Impurity 18 (CAS CATO-C4X-202918)
- Ebastine Impurity 16 (CAS CATO-C4X-202916)
- Ebastine Impurity 19 (CAS CATO-C4X-202919)
- Ebastine Impurity 17 (CAS CATO-C4X-202917)
- Ebastine Impurity 24 (CAS CATO-C4X-202924)
- Ebastine Impurity 25 (CAS CATO-C4X-202925)
- Ebastine Impurity 9 (CAS 632-50-8)
- Ebastine EP Impurity C (CAS 58258-01-8)
Recommended Standards
- Dyclonine Impurity 16 (CAS CATO-C4X-188116)
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- Phenylalanine impurity 1 (CAS 90988-28-6)
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- Lovastatin Impurity 42 (CAS CATO-C4X-168442)
- 2-Amino-5-iodopyridin-3-ol (CAS 1454852-94-8)
- 2-(2-Methoxyphenyl)-2-methylcyclopropan-1-amine hydrochloride (CAS 1354954-14-5)
- 1'-Amino-[1,1'-bi(cyclopropane)]-1-carboxylic acid hydrochloride (CAS 2270909-75-4)
- 4-Hydroxylidocaine (CAS 39942-41-1)
- Methyl 4-((3-bromophenyl)amino)-4-oxobutanoate (CAS 300727-43-9)
- 5-methylbenzothiophene-3-sulfonyl chloride (CAS 90273-32-8)
- Semaglutide Impurity 155 (x TFA Salt) (CAS CATO-C4X-2226155)
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