COA of 3,3′-Diaminobenzidine tetrahydrochloride hydrate COA of 3,3′-Diaminobenzidine tetrahydrochloride hydrate CAS 7411-49-6 By Haihang Industry|2021-03-15T14:34:58+08:00March 15th, 2021|Comments Off on COA of 3,3′-Diaminobenzidine tetrahydrochloride hydrate Share This Story, Choose Your Platform! FacebookXRedditLinkedInWhatsAppTumblrPinterestVkEmail About the Author: Haihang Industry