Indocyanine green Impurity 55 CAS CATO-C4X-250355
| CAS No. | CATO-C4X-250355 |
| Molecular Formula | C34H36N2O4S |
| Molecular Weight | 568.73 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Indocyanine green Impurity 55 (CAS CATO-C4X-250355), a pharmacopoeial impurity reference standard (molecular formula C34H36N2O4S, MW 568.73 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Indocyanine green Impurity 55 (C34H36N2O4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 568.73 g/mol, it falls into the moderately-high-molecular-weight range. 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.
Physical & Chemical Properties
| Molecular Formula | C34H36N2O4S |
| Molecular Weight | 568.73 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Indocyanine Standards
- Indocyanine Green Impurity 64 (CAS 1351043-94-1)
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- Indocyanine Green Impurity 16 (CAS CATO-C4X-250316)
- Indocyanine Green Impurity 43 (CAS CATO-C4X-250343)
- Indocyanine Green Impurity 52 (CAS CATO-C4X-250352)
- Indocyanine Green Impurity 63 (CAS CATO-C4X-250363)
Recommended Standards
- Leukotriene F4 (CAS 83851-42-7)
- 1,1'-(2,2'-Dimethyl-[1,1'-biphenyl]-4,4'-diyl)bis(3,6-dimethyl-9H-carbazole) (CAS 1262783-41-4)
- Atrasentan Impurity 59 (CAS 1072963-93-9)
- 9,10-Bis[N,N-di(p-tolyl)amino]anthracene (CAS 177799-16-5)
- CAS 1333110-79-4 (CAS 1333110-79-4)
- Ritalin impurity 6 (CAS 24321-14-0)
- Mitiglinide Impurity 5 (CAS CATO-C4X-11615)
- (4S,4'S)-2,2'-(1,3-Bis(4-(Adamantan-1-yl)phenyl)propane-2,2-diyl)bis(4-benzyl-4,5-dihydrooxazole) (CAS 2757085-43-9)
- 1H-Pyrazolo[3,4-b]pyrazin-3(2H)-one (CAS 116056-01-0)
- 3-(4-tert-Butylphenyl)-5-(2-methanesulfinylphenyl)-1,2,4-oxadiazole (CAS 339099-77-3)
- 4-[4-(5-Methylthiophene-2-carbonyl)piperazin-1-yl]-6-(trifluoromethyl)pyrimidine (CAS 1775544-32-5)
- 1-Benzyl-4-(2-bromo-6-(trifluoromethyl)-phenyl)piperazine 1779122-26-7 (CAS 1779122-26-7)
- 6-Fluoro-4H-benzo[d][1,3]dioxine-8-carboxylic acid (CAS 321309-28-8)
- D-Ser39-Tirzepatide (CAS CATO-CPTD788679)
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