Indocyanine Green Impurity 61 CAS CATO-C4X-250361
| CAS No. | CATO-C4X-250361 |
| Molecular Formula | C20H23NO4S |
| Molecular Weight | 373.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Indocyanine Green Impurity 61 (CAS CATO-C4X-250361, C20H23NO4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Indocyanine Green Impurity 61 (C20H23NO4S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Indocyanine Green Impurity 61 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 | C20H23NO4S |
| Molecular Weight | 373.47 g/mol |
| Purity | 97%+ |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Indocyanine Standards
- Indocyanine Green Impurity 28 (CAS 906772-02-9)
- Indocyanine Green Impurity 31 (CAS 2776202-53-8)
- Indocyanine Green Impurity 6 (CAS CATO-C4X-25036)
- Indocyanine Green Impurity 67 (CAS CATO-C4X-250367)
- Indocyanine Green Impurity 17 (CAS CATO-C4X-250317)
- Indocyanine green Impurity 57 (CAS CATO-C4X-250357)
- Indocyanine Green Impurity 43 (CAS CATO-C4X-250343)
- Indocyanine Green Impurity 52 (CAS CATO-C4X-250352)
Recommended Standards
- N-phenyl-2-(2-((phenylthio)methyl)-1H-benzo[d]imidazol-1-yl)acetamide (CAS 339100-65-1)
- Osavampator (CAS 1358751-06-0)
- N-Cyclohexyl-2-(diphenylphosphino)benzenemethanamine (CAS 815576-00-2)
- 3-(2-Fluorophenyl)-N-((4-(phenylthio)tetrahydro-2H-pyran-4-yl)methyl)propanamide (CAS 1797286-69-1)
- Lusutrombopag Impurity 9 (CAS CATO-C4X-20849)
- Lansoprazole Impurity 51 (CAS 103577-66-8)
- Calcium folinate Impurity 11 (CAS CATO-C4X-224111)
- 1-((1-Isopropyl-1H-pyrazol-4-yl)sulfonyl)-1,4-diazepane (CAS 1351386-43-0)
- 3-Chloroisoquinolin-5-boronic acid (CAS 1429665-44-0)
- Methyl 4-(2,5-Dimethoxyphenyl)-2,4-dioxobutanoate (CAS 70935-15-8)
- 2-((6,9-Dimethyl-9H-purin-2-yl)thio)acetamide (CAS 52379-96-1)
- ((Methylstannanetriyl)tris(sulfanediyl))tris(ethane-2,1-diyl) tridodecanoate (CAS 67859-62-5)
- Calcium 3-hydroxybutanoate (CAS 586976-56-9)
- Semaglutide impurity 77 (CAS CATO-C4X-222677)
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