Supplier Page from Thermo Fisher Scientific for Nalpha-4-Tosyl-L-arginine methyl ester hydrochloride, 98+%
2-Mercapto-1-methylimidazole, 98% from Thermo Fisher Scientific
Acetophenone, 98%, pure from Thermo Fisher Scientific
L(+)-Glutamic acid monosodium salt monohydrate, 99% from Thermo Fisher Scientific
Riboflavin, 98% from Thermo Fisher Scientific