Indocyanine Green Impurity 1 CAS CATO-C4X-25031
| CAS No. | CATO-C4X-25031 |
| Molecular Formula | C45H52N2O6S2 |
| Molecular Weight | 781.03 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C45H52N2O6S2, Indocyanine Green Impurity 1 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 781.03 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).
Indocyanine Green Impurity 1 (CAS CATO-C4X-25031) is a certified pharmaceutical impurity reference standard with the molecular formula C45H52N2O6S2 and a molecular weight of 781.03 g/mol.
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 1 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 | C45H52N2O6S2 |
| Molecular Weight | 781.03 g/mol |
| Purity | >95% |
| 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) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Indocyanine Standards
- Indocyanine Green Impurity 2 (CAS CATO-C4X-25032)
- Indocyanine Green Impurity 48 (CAS CATO-C4X-250348)
- Indocyanine Green Impurity 49 (CAS CATO-C4X-250349)
- Indocyanine Green Impurity 3 (CAS CATO-C4X-25033)
- Indocyanine Green Impurity 4 (CAS 1201170-49-1)
- Indocyanine Green Impurity 7 (CAS CATO-C4X-25037)
- Indocyanine Green-Succinimidyl Ester (CAS 1622335-40-3)
- Indocyanine Green Carboxylic Acid (CAS 181934-09-8)
Recommended Standards
- (11bS)-2,6-bis[4-(1,1-dimethylethyl)-2,6-bis(1-methylethyl)phenyl]-4-hydroxy-4-oxide-4λ5-Dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin (CAS 1219498-54-0)
- (11bR)-2,6-bis[4-(1,1-dimethylethyl)-2,6-bis(1-methylethyl)phenyl]-4-hydroxy-4-oxide-4λ5-Dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin (CAS 1152438-32-8)
- Saikosaponin B1 (CAS 58558-08-0)
- Fulvestrant EP Impurity C (CAS CATO-C4X-19173)
- Mirogabalin Impurity N77 (CAS CATO-CP155177)
- Ibrutinib Impurity 144 (CAS CATO-C4X-1064144)
- Apixaban Impurity 152 (CAS CATO-C4X-1088152)
- (2S,3S,4S,5R,6R)-3,4,5-trihydroxy-6-isobutoxytetrahydro-2H-pyran-2-carboxylic acid (CAS 5391-15-1)
- 2-Amino-3-(m-tolyl)propanamide (CAS 1479604-19-7)
- N-Phenyl isonicotinicamide (CAS 3034-31-9)
- Ethyl 3-Chloro-5-nitro-4-(1-piperidyl)benzoate (CAS 1315374-62-9)
- P-(1,1-Dimethylethyl)-N,N′-bis(1-methylethyl)phosphonic diamide (CAS 600116-15-2)
- 2,5-Bis(4-Fluorophenyl)-3,6-Diphenyl-1,4-Benzoquinone (CAS 22030-92-8)
- Semaglutide Impurity 12 (CAS CATO-C4X-222612)
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