14527-26-5 2-Methyl-2-thiopseudourea sulfate 2-Methylisothiouronium hydrogen sulphate 2-Methylisothiouronium sulfate 2986-19-8 Carbamimidothioic acid, methyl ester, sulfate (1:1) (9CI) EINECS 238-544-8 Methyl thiopseudourea sulfate NSC 227845 Pseudourea, 2-methyl-2-thio-, hydrogen sulfate Pseudourea, 2-methyl-2-thio-, sulfate (1:1) (8CI) S-Methylisothiourea sulfate (1:1) S-Methylpseudothiourea sulfate S-Methylthiourea sulfate S-Methylthiuronium sulfate USAF EK-1231