Gadoteridol Impurity 18 CAS 68516-39-2

Purity >95%In StockPharmacopoeial Impurity Standards
CAS No.68516-39-2
Molecular FormulaC4H8O4
Molecular Weight120.10 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Gadoteridol Impurity 18 CAS 68516-39-2 chemical structure

Description

Structurally, Gadoteridol Impurity 18 (C4H8O4) contains a carbohydrate-derived structure. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 120.10 g/mol, it falls into the low-molecular-weight range.

As a process- or degradation-related impurity, Gadoteridol Impurity 18 (CAS 68516-39-2, C4H8O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.

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 FormulaC4H8O4
Molecular Weight120.10 g/mol
Purity>95%
StorageStore at 2-8°C, keep sealed and dry
Solubility (reference)Soluble in methanol, ethanol, DMSO, water
StabilityHygroscopic; reseal immediately after opening
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1976

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