Biochem Chemopharma

(2R,3R)-(+)-Tartaric acid, L-Threaric acid

(±)-a-Hydroxyphenylacetic acid

Aluminium(III) Nitrate; Nitric acid aluminum salt

Basic Red 2, Cotton Red, Gossypimine, Safranin O, Safranin T, Safranin Y or A

(2R,3R)-(+)-Tartaric acid, L-Threaric acid

Sodium hydrogen sulfate monohydrate

Basic Red 2, Cotton Red, Gossypimine, Safranin O, Safranin T, Safranin Y or A

Potassium pyrosulfite; Dipotassium disulfite

Potassium pyrosulfite; Dipotassium disulfite

Reagents

LAURIC ACID LR

ABL; Dodecanoic acid

Citric acid triammonium salt