| 4-(2-chloroethylthio)-nicotinic aci methyl ester |
| 4-(2-chloroethylthio)-3-pyridinecarboxylic aci methyl ester |
| 4-(2-chloroethylthio)-3-pyridinecarboxylic acid methyl ester |
| 4-(2-chloroethylthio)nicotinic acid methyl ester |
| methyl 4-(2-chloroethylthio)nicotinate |