Iguratimod Impurity 38 HCl CAS CATO-C4X-182638
| CAS No. | CATO-C4X-182638 |
| Molecular Formula | C10H13ClN2O4S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Iguratimod Impurity 38 HCl (CAS CATO-C4X-182638, C10H13ClN2O4SHCl) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Iguratimod Impurity 38 HCl (C10H13ClN2O4SHCl) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 329.19 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).
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 | C10H13ClN2O4S HCl |
| Molecular Weight | 329.19 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Iguratimod Standards
- Iguratimod Impurity 9 (CAS 10298-80-3)
- Iguratimod Impurity 40 (CAS 1179354-65-4)
- Iguratimod Impurity 39 (CAS 123662-92-0)
- Iguratimod Impurity 114 (CAS 123663-48-9)
- Iguratimod (CAS 123663-49-0)
- Iguratimod Impurity 48 (CAS 123663-50-3)
- Iguratimod Impurity 112 (CAS 123664-39-1)
- Iguratimod Impurity 3 (CAS 123664-52-8)
Recommended Standards
- Upadacitinib Impurity 134 (CAS CATO-C4X-2405134)
- Solifenacin EP impurity F HCl (CAS 180468-40-0)
- Sorafenib Impurity 41 (CAS 1129683-83-5)
- 6-Hydrazinyl-n,n-bis(propan-2-yl)pyridine-3-sulfonamide (CAS 627838-41-9)
- 4-Methyl-N-((S)-1-oxo-3-phenyl-1-(((S,E)-5-phenyl-1-(phenylsulfonyl)pent-1-en-3-yl)amino)propan-2-yl)piperazine-1-carboxamide hydrochloride (CAS 502960-92-1)
- 5'-(Tert-butyl)-[1,1':3',1"-terphenyl]-3,3"-dicarboxylic acid (CAS 2451082-07-6)
- 1-Methylethyl 2-chloro-4-iodo-3-pyridinecarboxylate (CAS 1315559-88-6)
- 1,2,5,6-Tetrahydrothiopyrano[2,3-c]pyrazol-3(4H)-one (CAS 58509-71-0)
- 1-Methyl-4-nitro-1h-pyrrole-2-carboxamide (CAS 13138-77-7)
- Semaglutide impurity 276 (CAS CATO-C4X-2226276)
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