Propylthiouracil USP Ion Selective Electrode Standards 50% ALKALINITY TO PASS TEST

50% ALKALINITY TO PASS TEST WATER 10 13

Test Specification Min Max ASSAY 97% 97% MELTING POINT 136 - 138 C 136 - 138 C

RNase and Protease NONE DETECTED NONE DETECTED IDENTIFICATION TO PASS TEST TO PASS TEST

Test Specification Min Max APPEARANCE CLEAR COLORLESS CLEAR COLORLESS ASSAY 99% 99%

Test Specification Min Max ASSAY (C[@3@]H[@7@]NO[@2@]S

Propylthiouracil USP Ion Selective Electrode Standards 50% ALKALINITY TO PASS TESTTest Specification Min Max ASSAY (DRIED BASIS) 98. 0 100. 5 % 98. 0 100. 5 % MELTING RANGE 218 221 C 218 221 C LOSS ON DRYING 0. 50% RESIDUE ON IGNITION 0. 10% SELENIUM 0. 00% ELEMENTAL IMPURITIES AS REPORTED AS REPORTED ORDINARY IMPURITIES TO PASS TEST TO PASS TEST IDENTIFICATION TO PASS TEST TO PASS TEST EXPIRATION DATE DATE OF MANUFACTURE APPEARANCE RESIDUAL SOLVENTS TO PASS TEST TO PASS TEST