BI-D1870, An ATP-competitive inhibitor of the four isoforms of ribosomal S6 kinase (p90 RSK), Alternate Name/Synonyms: 2-[(3,5-Difluoro-4-hydroxyphenyl)amino]-7,8-dihydro-5,7-dimethyl-8-(3-methylbutyl)-6(5H)-pteridone, CAS Number: 501437-28-1, Purity: G98% by TLC, 5 mg