CAUBON 



229 



Propyl iodidc-2-Ci^ 

 Pyruvamide-2-C''' 

 Pyruvic acid-2-C'^ 

 D-Ribitol-1-Ci^ 



Ribonucleic acid-C'*' (uniformly lahrled) 

 D-Ribose-l-C'< 



Ribose-S-phosphate-C^'' barium (uni- 

 formly labeled) 

 Sebacic acid-l-C'^ 

 DL-Serine-3-C'< 

 L-Serine-3-C'^ 

 Sodium acetato-l-C'' 

 Sodium acetate-2-C''' 

 Sodium bicarbonate-C'^ 

 Sodium Inityrate-l-C^'' 

 Sodium butyrate-2-C"' 

 Sodium caproate-l-C" 

 Sodium carbonate-C'' 

 Sodium cyanide-C'' 

 Sodium cyanoacetate-2-C" 

 Sodium fluoroacctate-1-C" 

 Sodium fiuoroacetate-2-C** 

 Sodium formate-C'^ 

 Sodium D-glucuronate-6-Ci^ 

 Sodium heptanoate-1-C" 

 Sodium c?/-/3-hydroxybutyrate-l-C''' 

 Sodium lactobionate-l-C'' 

 Sodium propionate- 1-C I'' 

 Sodium propionate-2-Ci'' 

 Sodium propionate-3-C''' 

 Sodium thiocj'anate-C" 

 Sodium valerate-l-C" 

 L-Sorbose-l-C" 



Starch-Ci** (tobacco-leaf tissue) 

 Stearic acid-1-Ci-' 

 Stearic acid-2-Ci'' 

 Stearic acid-3-Ci^ 

 Steariophenone-a-C ' ^ 

 Styrene (l-phenylethylene-2-C") 

 Succinic acid-l,4-C" 

 Succinic acid-2-C'^ 



Succinic acid-2,3-C''' 

 Sucrose-C^^ (totally labeled) 

 D-Talose-1-Ci^ 

 Testosterone-4-C''' (ring A) 

 Thiamine-C" (labeled in position 2 of 



thiazole ring) 

 Thiouracil-2-C" 

 Thyroxine-l-C" 



Tobacco-leaf residues-C'' (4-1- to 2-LX) 

 Toluene-l-C'4 



Tri-n-butyl phosphate- l-C^'* 

 Tridecoic acid-l-C'"* 

 Triethylene glycol di-2-ethyl butyrate- 



Trimethyl-n-hexadecyl ammonium chlo- 

 ride-l-Ci4 



Tri-2-ethyl hexyl phosphate-l-C* 



Triethyl phosphate- l-C" 



Tripalmitin-carboxyl-C* 



rf/-Tryptophan-2-C" 



Tyramine-8-C''' 



DL-Tyrosine-2-Ci'' 



L-Tyrosine-C" (uniformly labeled) 



Undecylic acid-l-C" 



Uracil-2-Ci* 



Urea-Ci^ 



Urethan-carbonyl-C 1^ 



Uric acid-8-Ci'' 



Uridylic acid-C'^ (uniformly labeled) 



Valeric acid-l-C" 



DL-Valine-1-Ci« 



Versene-C'' 



Vinyl- 1,2-Ci* acetate 



D-Xylose-l-C'^ 



Yeast protein hydrolyzate-C^* (com- 

 plete, uniformly labeled) 



Yeast protein hydrolyzate-C'^ (neutral 

 amino acids only, uniformly labeled) 



Zinc lactate-2-Ci'' 



Zinc lactate-3-Ci'' 



C-1. Popjak, G.: Mode of Formation of Fattj' Acids from Acetate and Glucose, as 

 Studied in the Mammary Gland, in G. E. W. Wolstenholme, ed., "Ciba Founda- 

 tion Conference on Isotopes in Biochemistry," pp. 258-284, J. and A. Churchill, 

 Ltd., London, 1951. 



C-2. Karlsson, J. L., and H. A. Barker: Biosynthesis of Uric Acid Labeled with 

 Radioactive Carbon, J. Biol. Chcm., 177: 597-599 (1949). 



C-3. Popjak, G., R. F. Glascock, and S. J. Folley: Incorporation of Carboxy-'''C 

 Acetate into Lactose and Glycerol by the Lactating Goat Udder, Biochem. J . 

 London, 62: '472-475 (1952). 



