The chemical Navitoclax has a designated molecular formula of C47H55ClF3N5O6S3 and a molecular weight of 974.611 g/mol. Synonyms may include: ABT 263, ABT-263, UNII-XKJ5VVK2WD (ChemID). Navitoclax has been assigned a MeSH pharmacological action of: Antineoplastic.