(6aS)-Dextromethorphan Impurity 9 CAS CATO-C4X-11579
| CAS No. | CATO-C4X-11579 |
| Molecular Formula | C18H25NO |
| Molecular Weight | 271.40 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including (6aS)-Dextromethorphan Impurity 9.
(6aS)-Dextromethorphan Impurity 9 (CAS CATO-C4X-11579) is a certified pharmaceutical impurity reference standard with the molecular formula C18H25NO and a molecular weight of 271.40 g/mol.
Structurally, (6aS)-Dextromethorphan Impurity 9 (C18H25NO) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. 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 271.40 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C18H25NO |
| Molecular Weight | 271.40 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related aS Standards
- Dextromethorphan impurity 23 (CAS 125-70-2)
- Dextromethorphan EP Impurity D (CAS 1453167-99-1)
- Dextromethorphan Impurity 15 (CAS 51072-34-5)
- Dextromethorphan-D3 (CAS 524713-56-2)
- Dextromethorphan Impurity 11 (CAS 28973-48-0)
- Dextromethorphan Impurity 12 (CAS 51745-05-2)
- Dextromethorphan Impurity 14 (Mixture of Rotamers) (CAS 29144-31-8)
- Dextromethorphan Impurity 21 (CAS 51773-23-0)
Recommended Standards
- Albendazole Impurity 21 (CAS 20735-00-6)
- N-[(5-phenylthiophen-2-yl)methyl]cyclohexanamine (CAS 1152881-01-0)
- Lauroylsarcosine (CAS 97-78-9)
- <I>N</I>-Tosyl-5-methyl-3,4-hexadienylamine (CAS 156900-59-3)
- Landiolol Impurity 92 (CAS CATO-C4X-262192)
- Baclofen Impurity 64 (CAS CATO-C4X-101264)
- Vonoprazan Impurity 278 (CAS CATO-C4X-1020278)
- 4-Chloro-5H-pyrrolo[3,2-d]pyrimidine-7-carbonitrile (CAS 1311275-24-7)
- N-(3-Fluoro-4-methylphenyl)acetamide (CAS 458-10-6)
- 1-[3-(aminomethyl)azetidin-1-yl]-2-methoxyethan-1-one (CAS 1492291-50-5)
- (3,4-Dihydro-2h-1,4-benzoxazin-2-yl)methanol hydrochloride (CAS 90609-95-3)
- Arotinolol Impurity 78 (CAS CATO-C4X-185478)
- 2-[(Pyridin-3-yl)methyl]-2,11-dihydro-1H-6-oxa-2,5-diazatetracene-1,11-dione (CAS 303995-56-4)
- Galanin Message Associated Peptide (44-59) amide (CAS 125455-59-6)
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