D-GLUCOSE (1-13C, 98%; 2-D, 98%)…

L-ALLO-ISOLEUCINE (13C6, 97-99%; D10, 97-99%; 15N, …

4-PREGNEN-21-OL-3,20-DIONE (2,3,4-13C3, 99%)…

25-HYDROXYVITAMIN D3 (23,24,25,26,27-13C5, 99%) CHE…

D-FRUCTOSE (4,5,6-13C3, 98%)…

L-ISOLEUCINE (1-13C, 99%)…

3-EPI-25-HYDROXYVITAMIN D3 (23,24,25,26,27-13C5, 99…

VITAMIN E (ALPHA-TOCOPHEROL) (TRIMETHYLPHENYL -13C3…

VITAMIN E (DL-RAC-ALPHA-TOCOPHEROL) (TRIMETHYL-13C3…

VITAMIN E (ALPHA-TOCOPHEROL) (PHENYL-13C6, 99%) CHE…