Iguratimod Impurity 28 HCl CAS CATO-C4X-182628
| CAS No. | CATO-C4X-182628 |
| Molecular Formula | C16H14N2O5S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H14N2O5SHCl, Iguratimod Impurity 28 HCl contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 382.81 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
CATO supplies Iguratimod Impurity 28 HCl (CAS CATO-C4X-182628), a pharmacopoeial impurity reference standard (molecular formula C16H14N2O5SHCl, MW 382.81 g/mol) used for the identification and quantification of trace impurities in APIs.
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), Iguratimod Impurity 28 HCl 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 | C16H14N2O5S HCl |
| Molecular Weight | 382.81 g/mol |
| Purity | >95% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 10.0 |
| 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
- Roxadustat Impurity 141 (CAS CATO-C4X-2213141)
- Rivastigmine Impurity 41 (CAS CATO-C4X-138441)
- Entacapone EP Impurity C(Mixtures of tautomers) (CAS 116313-85-0)
- 6-Chlorobenzo[d]thiazole-2-carbaldehyde (CAS 854059-91-9)
- Palbociclib Impurity 10 (CAS CATO-C3D-1457)
- 3-(4-(2-Hydroxyethyl)cyclohexyl)-1,1-dimethylurea (CAS 1702726-02-0)
- 1-chloro-2-[(trifluoromethyl)sulfanyl]benzene (CAS 398-74-3)
- (5-bromo-1,3-benzoxazol-2-yl)methanamine hydrochloride (CAS 1803588-27-3)
- 5-(4-Methoxybenzyl)-[1,3]dioxolo[4,5-g]isoquinoline (CAS 55857-56-2)
- (D-Ala2)-Gastric Inhibitory Polypeptide (human) trifluoroacetate salt (CAS 444073-04-5)
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