Iguratimod Impurity 39 CAS 123662-92-0
| CAS No. | 123662-92-0 |
| Molecular Formula | C18H16N2O6S |
| Molecular Weight | 388.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Iguratimod Impurity 39 (CAS 123662-92-0), a pharmacopoeial impurity reference standard (molecular formula C18H16N2O6S, MW 388.39 g/mol) used for the identification and quantification of trace impurities in APIs.
Iguratimod Impurity 39 (C18H16N2O6S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
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 | C18H16N2O6S |
| Molecular Weight | 388.39 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 |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Iguratimod Standards
- Iguratimod Impurity 40 (CAS 1179354-65-4)
- Iguratimod Impurity 48 (CAS 123663-50-3)
- Iguratimod Impurity 35 (CAS CATO-C4X-182635)
- Iguratimod Impurity 36 (CAS CATO-C4X-182636)
- Iguratimod Impurity 55 (CAS CATO-C4X-182655)
- Iguratimod Impurity 22 (CAS CATO-C4X-182622)
- Iguratimod Impurity 45 (CAS CATO-C4X-182645)
- Iguratimod Impurity 65 (CAS CATO-C4X-182665)
Recommended Standards
- 68496-04-8 alpha-2-Pyridinyl-2,8-bis(trifluoromethyl)-4-quinolinemethanol 4-Quinolinemethanol, alpha-2-pyridinyl-2,8-bis(trifluoromethyl)- MQ-IS (CAS 68496-04-8)
- Nilvadipine-d3 (CAS 95326-14-0)
- N-(4-Aminoquinazolin-6-yl)-2-((4-fluorophenoxy)methyl)benzamide (CAS 828930-95-6)
- 5,5'-(Dimethylsilanediyl)diisophthalic acid (CAS 1171890-34-8)
- Evocalcet Impurity 31 (CAS CATO-C4X-248531)
- Procaine Impurity 6 (CAS CATO-C4X-26236)
- Lisinopril impurity 29 (CAS 1496563-44-0)
- (E)-4-((4-Methoxybenzylidene)amino)phenyl acetate (CAS 10484-13-6)
- (S)-2-(2-(((Cyclopropylmethyl)amino)methyl)pyrrolidin-1-yl)acetic acid (CAS 1354007-48-9)
- (2S)-2-Amino-1-(3-((benzyl(ethyl)amino)methyl)pyrrolidin-1-yl)propan-1-one (CAS 1354027-10-3)
- (2-methoxy-1-methylethyl)(3-nitrobenzyl)amine (CAS 355382-82-0)
- 1,3-Diisopropylimidazole chloride (CAS 139143-09-2)
- 2-Imino-1-isopropyl-N-(3-methoxypropyl)-10-methyl-5-oxo-2,5-dihydro-1H-dipyrido[1,2-a:2',3'-d]pyrimidine-3-carboxamide (CAS 618072-31-4)
- Vialox Peptide(Pentapeptide-3) (CAS 135679-88-8)
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