NCCNCCS mol38462 0_1 [NH3+]CCNCC[S-] mol38462 0_2 NCC[NH2+]CC[S-] mol38462 0_3 [NH3+]CCNCCS mol38462 1_1 [NH3+]CC[NH2+]CC[S-] mol38462 1_2 NCC[NH2+]CCS mol38462 1_3