Nalfurafine Impurity 9 CAS 67025-97-2
| CAS No. | 67025-97-2 |
| Molecular Formula | C20H26N2O3 |
| Molecular Weight | 342.43 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Nalfurafine Impurity 9 (CAS 67025-97-2), molecular formula C20H26N2O3 and molecular weight 342.43 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Nalfurafine Impurity 9 (C20H26N2O3) 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 342.43 g/mol, it falls into the moderately-high-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
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 | C20H26N2O3 |
| Molecular Weight | 342.43 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
| Nitrogen Atoms | 2 |
Related Nalfurafine Standards
Recommended Standards
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- Temocapril HCl (CAS 110221-44-8)
- Methyl 2,3-dimethylbutanoate (CAS 30540-29-5)
- N-(4-Amino-1,2,5-oxadiazol-3-yl)acetamide (CAS 140706-47-4)
- 3-[(3-Cholamidopropyl)dimethylammonio]-1-propanesulfonate hydrate 331717-45-4 CHAPS (CAS 331717-45-4)
- 3-(3-(5-(1-Methyl-1H-pyrazol-4-yl)-1H-pyrrolo[2,3-b]pyridin-3-yl)phenyl)pentanenitrile (CAS 1956331-79-5)
- Valacyclovir (CAS 124832-26-4)
- Hexanedioic acid, polymer with N1-(2-aminoethyl)-1,2-ethanediamine and 2-octyloxirane (CAS 71608-56-5)
- 3-(9H-Carbazol-9-yl)-5-chlorophenylboronic acid (CAS 2121514-63-2)
- Cyclopropyl(4-methoxyphenyl)methanol (CAS 6552-45-0)
- Hexapeptide-9 (CAS 885024-94-2)
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