Supplier Page from MedChemExpress for (S)-N-Boc-3-hydroxypyrrolidine
Guanabenz hydrochloride from MedChemExpress
Isoniazid-d4 from MedChemExpress
L-Leucyl-L-Leucine methyl ester hydrochloride from MedChemExpress
Polyvinyl alcohol (Mw 146000-186000, 99+% hydrolyzed) from MedChemExpress