Supplier Page from Thermo Fisher Scientific for Polyphenylmethylsiloxane, MW 2500-2700
Imidazole, 99% from Thermo Fisher Scientific
L(-)-Menthol, 99.5% from Thermo Fisher Scientific
L(+)-Glutamic acid monosodium salt monohydrate, 99% from Thermo Fisher Scientific
Semicarbazide hydrochloride, 99+% from Thermo Fisher Scientific