| 2-(methylnitrosoamino)-ethano 4-methylbenzenesulfonate (ester) |
| 2-(methylnitrosoamino)ethanol 4-methylbenzenesulfonate (ester) |
| n-nitrosomethyl-(2-hydroxyethyl)amine 4-toluenesulfonate ester |
| n-nitrosomethyl-(2-hydroxyethyl)amine p-toluenesulfonate ester |
| 2-(methylnitrosoamino)-ethano4-methylbenzenesulfonate (ester) |
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