FCN437 Impurity 6 CAS CATO-C4X-33246
| CAS No. | CATO-C4X-33246 |
| Molecular Formula | C17H25NO4S |
| Molecular Weight | 339.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of FCN437 Impurity 6 is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, FCN437 Impurity 6 (CAS CATO-C4X-33246, C17H25NO4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, FCN437 Impurity 6 (C17H25NO4S) contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. 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 339.45 g/mol, it falls into the moderately-high-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.
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.
As a certified reference material (CRM), FCN437 Impurity 6 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C17H25NO4S |
| Molecular Weight | 339.45 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| 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 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- Quetiapine EP Impurity I (CAS 329216-67-3)
- FCN437 Impurity 7 (CAS CATO-C4X-33247)
- Blonanserin Impurity 3 (CAS 132811-84-8)
- Glimepiride EP Impurity J (CAS 41176-98-1)
- Loratadine Impurity 57 (CAS CATO-C4X-142657)
- Entacapone Impurity N1 (CAS 15029-36-4)
- Osimertinib Impurity 18 (CAS CATO-C4X-204518)
- Methyl 4-(4-methylphenyl)-2,4-dioxobutanoate (CAS 39757-29-4)
- 4,4'-(Dimethylsilanediyl)dibenzoic acid (CAS 17003-01-9)
- (R)-2-Hydroxypropanimidamide (CAS 760109-40-8)
- 1-Ethyl-3-vinylimidazolium bromide (CAS 34311-88-1)
- 3-Azetidinecarbonitrile trifluoroacetate (CAS 1335049-33-6)
- Bisoprolol EP Impurity G Hemifumarate (CAS 1215342-36-1(Free Base))
- Amyloid Precursor Frameshift Mutant C-Terminal Peptide trifluoroacetate salt (CAS 189125-14-2)
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