PD 173074. A FGFR1 kinase inhibitor, Synonyms: N-[2-[[4-(Diethylamino)butyl]amino]-6-(3,5-dimethoxyphenyl)pyrido[2,3-d]pyrimidin-7-yl]-N-(1,1-dimethylethyl)urea, Purity: G98% by Thin Layer Chromatography, CAS Number: 219580-11-7, Molecular Formula: C28HG1NGOG, 1mg.