MALEIC ANHYDRIDE (1,4-13C2, 99%)…

BROMOETHANE (1-13C, 99%)…

5,5-DIPHENYLHYDANTOIN (2-13C, 99%; 1,3-15N2, 98%+)…

5,5-DIPHENYLHYDANTOIN (2-13C, 99%; 1,3-15N2, 98%+)…

THEOPHYLLINE (2-13C, 99%; 1,3-15N2, 98%+)…

INDOLE (13C8, 98%+; 15N, 96-99%)…

THIOUREA (13C, 99%; 15N2, 98%)…

ETHYL CYANOACETATE (13C3, 99%; 15N, 98%) 97% PURE…

CYANAMIDE (STABILIZED WITH < 0.1% ACETIC ACID) (13…

POTASSIUM DIDEUTERIUM PHOSPHATE (D2, 98%)…