👉 The term "1247. 820235-25-4" is a chemical formula, specifically: N-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-L-valyl-L-alanylglycyl-L-valine 1247. 820235-25-4; N-{[(9H-Fluoren-9-yl)methoxy]carbonyl}-L-valyl-L-alanylglycyl-L-valine