L-Tryptophan

Disulfoton-sulfone, 10.0 µg/ml, Acetonitrile, 10

Reagent kit for 45 tests (Free & total chlorine HR) Contains: 1 x 115 mL DPD0, 1 x 20mL DPD1, 1 x 20mL DPD3

(±)-Betaxolol-d7 hydrochloride (N-iso-propyl-d7)