Methylene blue trihydrate astatin Calcium InChi: InChI=1S/C19H23N3O7/c20-6-7-27-8-9-28-10-11-29-14-3-1-2-12-16(14)19(26)22(18(12)25)13-4-5-15(23)21-17(13)24/h1-3
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