Metacresol USP EP Other Asymmetric Organocatalysts 2 ueq/g SUBSTANCES DARKENED BY

2 ueq/g SUBSTANCES DARKENED BY (H[@2@]SO[@4@]) TO PASS TEST TO PASS TEST SUBSTANCES REDUCING (KMnO[@4@]) TO PASS TEST TO PASS TEST CARBONYL COMPOUNDS: ACETONE 0

00% TITRATABLE ACID 0

Test Specification Min Max ASSAY (DRIED BASIS) 99 101

01% INSOLUBLE IN HCl 0

Test Specification Min Max THALLIUM (Tl) 995 - 1005 ppm 995 - 1005 ppm EXPIRATION DATE

Metacresol USP EP Other Asymmetric Organocatalysts 2 ueq/g SUBSTANCES DARKENED BYTest Specification Min Max ASSAY 98 102. 00% APPEARANCE CLARITY OF SOLUTION TO PASS TEST TO PASS TEST ORGANIC IMPURITIES TO PASS TEST TO PASS TEST RELATED SUBSTANCES TO PASS TEST TO PASS TEST ACIDITY TO PASS TEST TO PASS TEST RESIDUE ON EVAPORATION 0. 10% ELEMENTAL IMPURITIES AS REPORTED AS REPORTED IDENTIFICATION TO PASS TEST TO PASS TEST RETEST DATE MANUFACTURE DATE APPEARANCE RESIDUAL SOLVENTS TO PASS TEST TO PASS TEST