DL-AMPHETAMINE:HCL (95% CHEMICAL PURITY) (RING-13C6…

3-IODO-L-TYROSINE (13C6, 99%)…

L-PHENYLALANINE (3-13C, 99%)…

XANTHOSINE (13C5, 98%) 95%+ CHEMICAL PURITY…

CORTISONE (2,3,4-13C3, 98%) CP 97% 100 UG/ML IN MET…

CORTISONE 21-SULFATE, SODIUM SALT (2,3,4-13C3, 98%)…

CIS-UROCANIC ACID (1,2,3-13C3, 99%)…

D-FRUCTOSE (4,5-13C2, 99%)…

5A-ANDROSTAN-3,17-DIONE (ANDROSTANEDIONE) (2,3,4-1…

PHENYLPYRUVIC ACID, SODIUM SALT (13C9, 99%)…