Nalmefene Impurity 1 CAS 42971-33-5
| CAS No. | 42971-33-5 |
| Molecular Formula | C17H19NO3 |
| Molecular Weight | 285.34 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Nalmefene Impurity 1 (CAS 42971-33-5), a pharmacopoeial impurity reference standard (molecular formula C17H19NO3, MW 285.34 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Nalmefene Impurity 1 (C17H19NO3) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 285.34 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.
CATO manufactures Nalmefene Impurity 1 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 | C17H19NO3 |
| Molecular Weight | 285.34 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1969 |
| Nitrogen Atoms | 1 |
Related Nalmefene Standards
- Nalmefene Impurity 23 (CAS CATO-C4X-126823)
- Nalmefene Impurity 14 (CAS 19493-09-5)
- Nalmefene Impurity 29 (CAS CATO-C4X-126829)
- Nalmefene Impurity 3 (CAS CATO-C4X-12683)
- Nalmefene Impurity 19 (CAS CATO-C4X-126819)
- Nalmefene Impurity 4 (CAS CATO-C4X-12684)
- Nalmefene Impurity N5 (CAS 91598-83-3)
- Nalmefene impurity 20 (CAS 738552-29-9)
Recommended Standards
- Posaconazole Impurity 109 (CAS CATO-C4X-1208109)
- N-Nitroso Mirabegron EP Impurity B (CAS 3032026-54-0)
- Retigabine impurity 10 (CAS CATO-C4X-13150)
- Mirabegron Impurity 120 (CAS CATO-C4X-1032120)
- Voriconazole Impurity 71 (CAS 1359667-92-7)
- Telmisartan Impurity 30 (CAS 1338830-37-7)
- Argatroban Impurity 41 (CAS CATO-C4X-100741)
- [(E)-2-bromoethenyl]cyclohexane (CAS 67478-59-5)
- 6,7,8,9-Tetrahydro-1H-imidazo[4,5-h]isoquinoline Hydrochloride (CAS 56623-99-5)
- 2-(Hydroxymethyl)-1,3-dioxolan-4-yl acetate (CAS 1823616-89-2)
- 2-[[(2-Phenyl-4-quinolinyl)carbonyl]amino]benzoic acid (CAS 85-78-9)
- 2-Methoxy-5-phenylmethanesulfonyl-phenylamine (CAS 2815-50-1)
- 2-(Adamantan-1-ylthio)ethan-1-amine (CAS 30771-87-0)
- Insulin aspart (CAS 116094-23-6)
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