Girasol definition, an opal that reflects light in a bright luminous glow. See more.
Pheophytin or phaeophytin (abbreviated Pheo) is a chemical compound that serves as the first electron carrier intermediate in the electron transfer pathway of Photosystem II (PS II) in plants, and the photosynthetic reaction center (RC P870) found in purple bacteria.
Cefoxitin is a cephamycin antibiotic developed by Merck & Co., Inc. , often grouped with the secondâgeneration cephalosporins.It is sold under the brand name Mefoxin.he benzhydryl ester of 7-aminocephalosporanic acid (7-ACA) 2 is prepared by previous tosylation of the amino group of the initial 7-ACA, esterification of the carboxyl group with diphenyldiazomethane, and subsequent removal of the tosyl protection.