2-(3,6-Endoxohexahydrophthalimidomethylthio)pseudourea hydrobromide 73840-01-4 Pseudourea, 2-(3,6-endoxohexahydrophthalimidomethylthio)-, hydrobromide S-3,6-Endoxohexahydrophthalimidomethylisothiouronium bromide