Evocalcet Impurity 20 CAS 870855-05-3
| CAS No. | 870855-05-3 |
| Molecular Formula | C23H24N2O2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Evocalcet Impurity 20 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.
CATO supplies Evocalcet Impurity 20 (CAS 870855-05-3), a pharmacopoeial impurity reference standard (molecular formula C23H24N2O2HCl, MW 396.91 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Evocalcet Impurity 20 (C23H24N2O2HCl) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 396.91 g/mol, it falls into the moderately-high-molecular-weight range. 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 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.
Physical & Chemical Properties
| Molecular Formula | C23H24N2O2 HCl |
| Molecular Weight | 396.91 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Evocalcet Standards
- Evocalcet Impurity 27 (CAS 1039631-63-4)
- Evocalcet Impurity 30 (CAS 1039631-66-7)
- Evocalcet Impurity 29 (CAS 1092366-92-1)
- Evocalcet Impurity 73 (CAS 15297-34-4)
- Evocalcet Impurity 33 HCl (CAS 1666124-29-3)
- Evocalcet impurity 52 (CAS 1666124-30-6)
- Evocalcet Impurity 4 HCl (CAS 1666124-30-6 (free base))
- Evocalcet Impurity 17 (CAS 210367-24-1)
Recommended Standards
- Varenicline Impurity 66 HCI (CAS 328055-88-5)
- Dinoprost Trometamol EP Impurity C (CAS 27415-26-5)
- Erlotinib Impurity 12 (CAS 183322-20-5)
- Icaritin Impurity 6 (CAS 794-94-5)
- 3-(Furan-3-ylmethyl)azetidine hydrochloride (CAS 2138236-20-9)
- 3,4-Difluorobenzenecarbothioamide (CAS 317319-14-5)
- Fluoresceinamine Maleic Acid Monoamide (CAS 75900-74-2)
- Lodoxamide lmpurity 11 (CAS 67451-38-1)
- 5-Fluoro-2-methoxy-4-nitroaniline (CAS 1435806-78-2)
- 302798-54-5 (Leu31,Pro34)-Neuropeptide Y (13-36) (human, rat) MFCD00672463 (CAS 302798-54-5)
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