Details for Calcein
Calcein
111Category: Catalyst and Auxiliary
CAS NO: 1461-15-0 EC NO: 215-957-1 Molecular Formula: C30H26N2O13 Molecular Weight: 622.533 Specification: InChI: InChI=1/C30H26N2O13/c33-21-7-23-19(5-15(21)9-31(11-25(35)36)12-26(37)38)30(18-4-2-1-3-17(18)29(43)45-30)20-6-16(22(34)8-24(20)44-23)10-32(13-27(39)40)14-28(41)42/h1-8,33-34H,9-14H2,(H,35,36)(H,37,38)(H,39,40)(H,41,42) Synonyms: Oftasceine;2,2',2'',2'''-[(3',6'-dihydroxy-3-oxo-3H-spiro[2-benzofuran-1,9'-xanthene]-2',7'-diyl)bis(methanediylnitrilo)]tetraacetic acid; Molecular Structure: 
if you are sourcing Calcein from Japan ,just feel free to inquire
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