725 



4 ,9-Dihydroxyperylene-3 , 1 0-quin- 



one, 523 

 1,6-Dihydroxyphenazine, 995 

 3 ,4-Dihydroxyphenylalanine , 



301 

 2,5-Dihvdroxyphenylglyoxylic 



acid, 384 

 3.5-Dihydroxyphthalic acid, 181, 



185, 233, 386 

 3,5-Dihydroxy-l,4-pyrone, 72 

 2,5-Diketogluconic acid, 23, 25, 



405, 406 

 a-Diketones, 422 



Diketopiperazines, 346, 496, 497 

 2,3-Dimethoxy-5-methyl-l ,4-ben- 



zoquinone, 239 

 2,5-Dimethoxybenzoquinone, 494 

 1,8-Dimethoxynapthalene, 627 

 3-[2-( 3,5-Dimethyl-5-acetoxy-2- 



oxocy clohexyl ) -2-hy droxy- 



ethyl] glutarimide, 316 

 yS,/?-Diinethylacrylyl coenzyme A, 



92 

 •y,y-Dimethylallyl pyrophosphate, 



156 

 Dimethylamine, 291, 640 

 6-Dimethylaminopurine, 532, 



534 

 trans-2,4-Dimethyl-13-7z-amyl-2- 



eicosenoic acid, 126 

 5 ,6-Dimethylbenzimidazole , 



442, 444, 446, 529 

 a-(5,6-Dimethylbenzimidazolyl) 



cobamide cyanide, 441, 442, 



931 

 Dimethyl deca.-trans-2-trans-8- 



diene-4 ,6-diyne- 1 , 1 0-dioate, 



216 

 Dimethyl deca-2,4,6-triyne-l,10- 



dioate, 215 

 Dimethyl dec-trans-2-ene-4,6- 



diyne- 1,1 0-dioate, 217 

 Dimethylhistamine, 653 

 /3,5-Dimethyllanthionine, 420 

 L-bimethylleucine, 770 

 Dimethyl octa.-trans-2-trans-6- 



dien-4-yne-l,8-dioate, 206 

 3,5-Dimethyl-6-oxyphthalide, 



400, 408 



Subject Index 



Dimethylpyruvlc acid, 8 J, 86 

 6,7-Dimcthyl-8(D-l'-ribityl) 



lumazine, 557 

 Dimethylsulfone, 4 

 4,4'-Dioxo-/i-carotene, 163 

 2,6-Dioxy-5-methylpyrimidine, 



509 

 2,6-Dioxypyrimidine, 508 

 2 ,4-Dioxy-6-pyru vylbenzoic 



acid, 185, 398 

 Dipalmitoleyl-a-lecithin, 136 

 D-l,3-Diphosphoglyceric acid, 



14, 480 

 Diphosphopyridinenucleotide 



(DPN), 14, 47, 53, 93, 449, 



479-481, 510, 511, 514, 527, 



561-564, 975 

 Diphosphopyridine nucleic acid 



(reduced) (DPNH), 449, 511, 



5J4, 561-564 

 2,6-Dipicohnic acid, 3 J 4, 479, 



714, 968 

 Diplococcin, 1145 

 Diploicin, 441 

 Diploschisteric acid, 444 

 Dlpyrromethanes, 440 

 Dirhizonlc acid, 467 

 Disaccharldes, 511 

 Distamycin A, 1146 

 Divaricatic acid, 469 

 5,6,7,8,9,10,10',9',8',7',6',5VDo- 



decahydrolycopene, 178 

 Dodecyl 5-oxostearate, 12 

 Drosophihn A, 378 



B, 1247 

 D-Substance, 1147 

 Duramycin, 420, 820 



E-73, 305, 316 



E-129A, 743 



Eburicoic acid, 158, 355, 357 



3/3-acetate, 357 

 Echinomycin, 760, 1089 

 Echinulin, 458, 460, 471, 496, 



497, 943 

 Elaiomycin, 22, 711 

 Elaiophylin, 1148 



