Crystal structure of (1-ethoxycarbonyl-pentadecyl)-trimethyl ammonium bromide, (C21H44NO2)Br,form IC2iH44BrN02, monoclinic, P\\\2\\\lc\\\ (no. 14),a = 9.3300(4) A, b = 55.464(3) A, c = 9.3710(4) A, /? = 98.596(1)°, V = 4794.8 A3, Z = 8,Rgx(F) = 0.045, w...
Provied information about 1-Tetradecanaminium,N,N-bis(2-hydroxyethyl)-N-2-propen-1-yl-, chloride (1:1)(Molecular Formula: C21H44ClNO2, CAS Registry Number:93894-18-9 ) ,Boiling Point,Melting Point,Flash Point,Density, Molecular Structure,Risk Codes,Synt
某非环状多肽,经测定其分子式是C21HxOyN4S2。已知该多肽是由下列氨基酸中的几种作为原料合成的。苯丙氨酸(C9H11NO2)、天冬氨酸(C4H7NO4)、丙氨酸(C3H7NO2)、亮氨酸(C6H13NO2)、半胱氨酸 (C3H7NO2S)。下列有关该多肽的叙述,不正确的是 A.该多肽有三个肽键,为四肽化合物 ...