Supplier Page from Aladdin Scientific Corporation for (2-Hydroxyethyl)trimethylammonium Bromide
N,α-Diphenylbenzotriazolemethanamine, mixture of Bt1 and Bt2 isomers from Aladdin Scientific Corporation
pH Buffer Standard Solution(pH=4.01) from Aladdin Scientific Corporation
Phenyl isothiocyanate from Aladdin Scientific Corporation
Potassium carbonate from Aladdin Scientific Corporation