Indocyanine Green Impurity 41 CAS 2581870-51-9

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.2581870-51-9
Molecular FormulaC16H17N
Molecular Weight223.31 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Indocyanine Green Impurity 41 CAS 2581870-51-9 chemical structure

Description

Indocyanine Green Impurity 41 (CAS 2581870-51-9) is a certified pharmaceutical impurity reference standard with the molecular formula C16H17N and a molecular weight of 223.31 g/mol.

Indocyanine Green Impurity 41 (C16H17N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. Its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.

This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.

As a certified reference material (CRM), Indocyanine Green Impurity 41 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 FormulaC16H17N
Molecular Weight223.31 g/mol
Purity97%+
StorageStore at 2-8°C, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate
StabilityLight-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)9.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2001
Nitrogen Atoms1

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