4139-69-9 3,3'-methanediylbis(2H-chromen-2-one)

product Name 3,3'-methanediylbis(2H-chromen-2-one) Synonyms Molecular Formula C19H12O4 Molecular Weight 304.2962 InChI InChI=1/C19H12O4/c20-18-14(9-12-5-1-3-7-16(12)22-18)11-15-10-13-6-2-4-8-17(13)23-19(15)21/h1-10H,11H2 CAS Registry Number 4139-69-9 Molecular Structure Density 1.359g/cm3 Boiling point 537.1°C at 760 mmHg Refractive index 1.655 Flash point 283.9°C Vapour Pressur 1.31E-11mmHg at 25°C Hazard Symbols Risk Codes Safety Description