Supplier Page from MedChemExpress for (S)-3-Amino-4-hydroxybutanoic acid
Dermatan sulphate sodium from MedChemExpress
Dibucaine from MedChemExpress
Guanabenz hydrochloride from MedChemExpress
Polyvinyl alcohol (Mw 146000-186000, 99+% hydrolyzed) from MedChemExpress