63679-96-9 Pseudourea, 2-(2-aminoethyl)-1-(3-hydroxy-4-(p-propionylphenylazo)phenyl)-2-thio-, hydrogen sulfate Pseudourea, 2-thio-1-(4-propionyl(phenylazo)-3-hydroxyphenyl)-2-(2-aminoethyl)-, sulfate USAF B-82