&lamba; Ex/&lamba; Em (pH 9) = 492/514 nm ε (pH 9) = 82,000 Yellow orange solid soluble in pH>6 water Store at 4°C and protect from light, especially in solution C21H12O7 MW: 376 [72088-94-9] &lamba; Ex/&lamba; Em (pH 9) = 492/514 nm ExEm ε (pH 9) = 82,000 Yellow orange solid soluble in pH>6 water Store at 4°C and protect from light, especially in solution C21H12O7 21127 MW: 376 [72088-94-9]