| Title:  Phenprocoumon CAS Registry Number:  435-97-2 CAS Name:  4-Hydroxy-3-(1-phenylpropyl)-2H-1-benzopyran-2-one Additional Names:  3-(a-ethylbenzyl)-4-hydroxycoumarin;  3-(1-phenylpropyl)-4-hydroxycoumarin Trademarks:  Falithrom (Hexal);  Marcoumar (Roche);  Marcumar (Roche);  Liquamar (Organon) Molecular Formula:  C18H16O3 Molecular Weight:  280.32 Percent Composition:  C 77.12%, H 5.75%, O 17.12% Literature References:  Prepn:  Grüssner, Balthasar, US 2723276 (1955 to Hoffmann-La Roche); Junek, Ziegler, Monatsh. Chem. 87, 218 (1956); Schroeder, Link, J. Am. Chem. Soc. 79, 3291 (1957); US 2872457 (1959 to Wisconsin Alumni Res. Found.); GB 805748 (1958 to Geigy); L. R. Pohl, J. Med. Chem. 18, 513 (1975).  Resolution:  Preis et al., US 3239529 (1966 to Wisconsin Alumni Res. Found.).  Conformation in soln:  E. J. Valente et al., J. Med. Chem. 21, 141, 231 (1978). Properties:  Crystals or prisms from dil methanol, mp 179-180°. Melting point:  mp 179-180° Therap-Cat:  Anticoagulant. Keywords:  Anticoagulant.  |