Fast blue salt B Price Not Available 5mg Fast blue salt B Supplier Page Catalog Number R071064 Molecular Formula C14H12N4O2+2 CAS# 20282-70-6 Purity ≥95% Inchi InChI=1S/C14H12N4O2/c1-19-13-7-9(3-5-11(13)17-15)10-4-6-12(18-16)14(8-10)20-2/h3-8H,1-2H3/q+2 Inchi Key QMMMCTXNYMSXLI-UHFFFAOYSA-N SMILES COC1=C(C=CC(=C1)C2=CC(=C(C=C2)[N+]#N)OC)[N+]#N Size 5mg Supplier Page https://www.musechem.com/product/R071064.html