pemetrexed lung cancer drug molecule. atoms are represented as spheres with conventional color coding: hydrogen white, carbon .

pemetrexed lung cancer drug molecule atoms are represented as spheres conventional color coding hydrogen white carbon pemetrexet mesothelioma nonsmall cell folic folate antimetabolite purine pyrimidine synthesis tumor oncology oxygen nitrogen disease therapy medicine medicinal product pharmacology pharmacy pharmaceutical pharma treatment generic chemical chemistry composition atomic model molecular grey red blue