R & D Chemicals Methylenetributylphosphorane (01) Phenylphosphine (01) Tetramethvlphosphonium chloride (Ol) Tri-ferf-butylphosphine sulfide (01) Triethylphosphine sulfide (01) Triferrocenylphosphine selenide (P2) Phosphonic dichlorides (S3) Butyl Chloromethyl Cyclohexyl Dichloromethvl Ethyl Methyl Propyl Trichloromethyl Phosphonous dichlorides (S3) Chloromethyl Methyl Ethyl Phosphorodichloridites (S3) Butyl Ethyl Methyl Propyl
Sodium diphenyl phosphide (01) Tricyclohexyl phosphite (01) Trineopentyl phosphite (01) Purines, Pyrimidines, and Nucleotides Adenine α-L-lyxofuranoside (Tl) 4-Amino-5-cyano-2-(methylthio)pyrimidine (Nl) l-/3-D-Arabinofuranosylcytosine 5'-monophosphate (2Na+) (Tl) 5-Azacytosine (P8) 8-Azidoadenosine 3',5'-cyclic phosphate (P5) Bis(0-trimethylsilyl)uracil (P2) 8-Bromoadenosine 3',5'-cyclic phosphate (P5) 3-Butyluracil (P2) 6-Chloropurine ribonucleoside 5'-monophosphate(2Na+) (Tl) 5'-Deoxyadenosine (Tl) Deoxyadenosine 5'-diphosphate, sodium salt (P5)
6
Deoxycytidine 5'-diphosphate, sodium salt (P5) Deoxyguanosine 5'-diphosphate, sodium salt (P5) 5'-Deoxythymidine (Tl) 2-Fluoroadenine (6-amino-2-fluoropurine) (C2) 5-Iodo-2'-deoxyuridine (C2, S2) 2',3'-Isopropylidene-5'-trityl-iV 6 -methyladenosine ( T l ) 8-Methylthioadenosine 3',5'-cyclic phos phate (P5) 2'-0-Monobutyryladenosine 3',5'-cyclic phosphate, sodium salt (P5) 6 iV -Monobutyryladenosine 3',5'-cyclic phosphate, sodium salt (P5) Oligodeoxythymidylic acid (P4) Polydeoxyadenylic acid (P4) Polydeoxythymidylic acid (P4) Poly(dA-dT).poly(dA-dT) (P4) Poly(dA)»poly(dT) (P4) Poly(rA).poly(dT) (P4) Thymidine 5'-diphosphate, sodium salt (P5)
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ADVANCES IN CHEMISTRY SERIES No. 106 Thirteen papers from a symposium by the Division of Water, Air, and Waste Chemis try of the American Chemical Society, chaired by J. D. Hem. Which is more important: efficient ex ploitation of our natural resources or a stable ecosystem? What is the relation ship between a wide variety of life forms and a healthy environment? What do geology and ground-water flow patterns have to do with the chemical composition of water? How may one predict when a lake will reach equilibrium or tell how long it has supported life? This volume features principles of water pollution control methods of analysis for dissolved chemicals • mathematical models • discussion of stratified lakes • chemical processes in a carbonate aquifer • decomposition and racemization of amino acids 342 pages with index. Cloth bound (1971) $11.00. Postpaid in U.S. and Canada; plus 40 cents elsewhere. Set of L.C. cards with library orders upon request. Order from Special Issues Sales American Chemical Society 1155 16th St., N.W. Washington, D.C. 20036
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