Test Specification Min Max ASSAY 98% 98%

Test Specification Min Max ASSAY 95%

Test Specification Min Max ASSAY (C[@2@]H[@6@]OS) 98% 98% RETEST DATE

Test Specification Min Max ASSAY (C[@2@]H[@4@]O[@2@]S) 98% 98%

Test Specification Min Max IR SPECTRUM Matches standard Matches standard SOLUBILITY (1g/20ml, ACETONITRILE) Clear & complete Clear & complete

Test Specification Min Max ASSAY 99% 2,2-THIODIETHANOL 0.50% DNase, RNase and Protease NONE DETECTED NONE DETECTED

Test Specification Min Max ASSAY 97.5 102.00% SPECIFIC ROTATION, [a][@D@]25 +89� to +93� +89� to +93� RELATED COMPOUNDS: INDIVIDUAL IMPURITY 1.00% TOTAL IMPURITIES 2.00% ELEMENTAL IMPURITIES AS REPORTED AS REPORTED...

Test Specification Min Max ASSAY APPROX. 98 % APPROX. 98 %

Test Specification Min Max PURITY (GC) 98% 98% MELTING POINT 70.0�-72.0�C 70.0�-72.0�C

Test Specification Min Max PURITY (HPLC) 98% 98% MELTING POINT 47.0� 51.0�C SPECIFIC ROTATION, [(a)]D[@20@] (C = 1, EtOH) +110.0to+121.0� +110.0to+121.0�

Test Specification Min Max ASSAY 99% RETEST DATE

Test Specification Min Max ASSAY (S-H) 99.00% MELTING POINT 38� 44�C OXIDIZED DITHIOTHREITOL 0.50%

Test Specification Min Max ASSAY APPROX. 98 % APPROX. 98 % MELTING POINT 60 - 62 C 60 - 62 C RETEST DATE

Test Specification Min Max ASSAY 90% 90% EXPIRATION DATE

Test Specification Min Max ASSAY 98% 98% EXPIRATION DATE