Esketamine EP Impurity D CAS 33643-49-1
| CAS No. | 33643-49-1 |
| Molecular Formula | C13H16ClNO |
| Molecular Weight | 237.73 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Esketamine EP Impurity D (CAS 33643-49-1), molecular formula C13H16ClNO and molecular weight 237.73 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Esketamine EP Impurity D (C13H16ClNO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 237.73 g/mol, it falls into the medium-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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
CATO manufactures Esketamine 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 | C13H16ClNO |
| Molecular Weight | 237.73 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| 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.) | 1966 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Esketamine Standards
- Esketamine (CAS 33643-46-8)
- Esketamine Hydrochloride (CAS 33643-47-9)
- 【禁售不询】Esketamine Impurity N1 (CAS 6740-88-1)
- Esketamine EP Impurity C (CAS 90717-17-2)
- Esketamine Impurity 5 (CAS 86144-35-6)
- Esketamine Impurity 8 (CAS CATO-C4X-19048)
- Esketamine Impurity 9 (CAS CATO-C4X-19049)
- Esketamine Impurity 7 (CAS CATO-C4X-19047)
Recommended Standards
- Hexachloroethane-13C1 (CAS 93952-15-9)
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- 6-Chlorospiro[chroman-2,4'-piperidine] (CAS 644968-50-3)
- Ethyl 6-hydroxy-1-isopropyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylate (CAS 1354822-17-5)
- 4-Phenylthiophene-2-carboxylic acid (CAS 21676-88-0)
- 8-Azaspiro[4.5]Dec-2-en-1-one hydrochloride (CAS 2055840-13-4)
- 1-(4-Bromo-3-chlorophenyl)-1H-pyrrole-2,5-dione (CAS 303212-61-5)
- Flunarizine Impurity 19 (CAS 18903-04-3)
- N-Benzyl-1-(1-phenyl-1H-pyrazol-4-yl)methanamine (CAS 1152917-02-6)
- 4-((4-(Methoxycarbonyl)-5-methyl-3-oxo-1,3-dihydro-2H-pyrrol-2-ylidene)methyl)benzoic acid (CAS 354790-87-7)
- Isavuconazole Impurity 184 (CAS CATO-C4X-1236184)
- 1-(5-fluoro-1-benzofuran-2-yl)ethan-1-amine hydrochloride (CAS 1795283-85-0)
- Semaglutide Impurity 140 (CAS CATO-C4X-2226140)
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