QUIN 2, Tetrapotassium Salt 2-{[2-bis(Carboxymethyl)amino-5-methylphenoxy]methyl}-6-methoxy-8-bis(carboxymethyl)aminoquinoline, 4K Binding of Ca2+ leads to a major shift in UV absorption spectrum and a twenty-fold enhancement in fluorescence quantum yield. TPEN (Cat. No. 616394) can be used in conjunction with QUIN 2 to reduce heavy-metal quenching of QUIN 2 fluorescence in cells. 产品信息 Form Yellow solid Molar mass 693.9 Protect from Light 是的 Purity ≥95% by HPLC Excitation max. 354 nm (low), 332 nm (high) Emission max. 510 nm (low), 505 nm (high) Solubility H2O Chemical formula C26H23N3O10 · 4K CAS number 73630-23-6 商店和运输信息 Storage -20°C Ship Ambient Temperature Only Irritant