CAS: 1104011-35-9

Desisobutyl-N-butyl bortezomib is a drug product that has been custom synthesized for the purpose of research and development. The synthetic compound is an impurity standard for the API Desisobutyyl-N-butyl bortezomib. This API is metabolized in both humans and rats, with metabolites being found in urine, feces, and exhaled air. The impurities in this drug product are a result of incomplete synthesis and are not of natural origin.

Impurity Bortezomib N-Pentyl Impurity Applications Desisobutyl-n-butyl Bortezomib is an impurity of Bortezomib (B675700). Bortezomib impurity 5. Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package References Lin, G., et al.: J. Biol. Chem., 283, 34423 (2008);