4-Ethyl-4-hexadecyl morpholinium ethyl sulfate 78-21-7 Atlas G-263 Barquat CME-A Cetylethylmorpholinium ethosulfate Ethyl-N-hexadecylmorpholinium ethosulfate G 251 G 263 G-263 Morpholinium, 4-ethyl-4-hexadecyl-, ethyl sulfate N-Cetyl-N-ethylmorpholinium ethosulfate N-Cetyl-N-ethylmorpholinium ethyl sulfate N-Cetyl-N-ethylmorpholinium ethylsulfate N-Hexadecyl-N-ethylmorpholinium ethyl sulfate NSC215231