Rutin hydrate,>=94% (HPLC), powder

Sodium orthovanadate,>=90% (titration)

Sulfamerazine,ReagentPlus, >=99.0%

Theophylline,anhydrous, >=99%, powder

L-Tyrosine,reagent grade, >=98% (HPLC)

Trizma hydrochloride,pH 3.5-5.0 (0.5 M in H2O), BioXtra, >=99.0% (titration)

Thiourea,ACS reagent, >=99.0%

2,3,5-Triphenyltetrazolium chloride,>=98.0% (HPLC)

Silver/silver chloride (60/40) paste for screen printing,

Thiamine hydrochloride,tested according to Ph. Eur.

Adipic acid,BioXtra, >=99.5% (HPLC)

Ammonium phosphate dibasic,BioUltra, >=99.0% (T)