Alvimopan impurity 16 CAS CATO-C4X-114516
| CAS No. | CATO-C4X-114516 |
| Molecular Formula | C24H29NO3 |
| Molecular Weight | 379.49 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 Alvimopan impurity 16.
Alvimopan impurity 16 (CAS CATO-C4X-114516) is a certified pharmaceutical impurity reference standard with the molecular formula C24H29NO3 and a molecular weight of 379.49 g/mol.
Structurally, Alvimopan impurity 16 (C24H29NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 379.49 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C24H29NO3 |
| Molecular Weight | 379.49 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Alvimopan Standards
- Alvimopan impurity 13 (CAS CATO-C4X-114513)
- Alvimopan Impurity 3 (CAS 170098-29-0)
- Alvimopan Impurity 9 (CAS CATO-C4X-11459)
- Alvimopan impurity 10 (CAS CATO-C4X-114510)
- Alvimopan impurity 12 (CAS CATO-C4X-114512)
- Alvimopan impurity 14 (CAS CATO-C4X-114514)
- Alvimopan Impurity 4 (CAS 156130-41-5)
- Alvimopan Impurity 21 (CAS CATO-C4X-114521)
Recommended Standards
- Donepezil Impurity 73 (CAS 142698-19-9)
- Olopatadine Impurity 16 (CAS CATO-C4X-171816)
- Donepezil (CAS 120014-06-4)
- Naftidrofuryl EP impurity E (CAS 3216-60-2)
- Citalopram EP Impurity A HCl (CAS CATO-C4X-110994)
- Osimertinib Impurity 98 (CAS CATO-C4X-204598)
- Doxorubicin Impurity 29 (CAS CATO-C4X-203329)
- 1-Phenyl-3-(pyridin-3-yl)propan-2-one (CAS 1247742-78-4)
- (3-(3-Chlorophenyl)isoxazol-5-yl)methanamine hydrochloride (CAS 1159826-68-2)
- 2-Propenoic acid, 2-methyl-, methyl ester, polymer with ethyl 2-propenoate, N-(hydroxymethyl)-2-propenamide and 2-propenamide (CAS 30394-81-1)
- 4-(Chloromethyl)-2-(methylthio)pyrimidine (CAS 944902-34-5)
- 2-((5-Methyl-[1,2,4]triazolo[1,5-a]pyrimidin-7-yl)(octyl)amino)ethanol (CAS 61993-92-8)
- 1-(2-Methoxyphenyl)cyclobutan-1-amine hydrochloride (CAS 1228878-60-1)
- Semaglutide impurity 78 (CAS CATO-C4X-222678)
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