Oil Red O is a type of lysochrome diazo dye, also known as Solvent Red 27, Sudan Red 5B. It is commonly used for staining neutral triglycerides and lipids on frozen sections, as well as certain lipoproteins on paraffin sections. Oil Red O is in the form of a red powder and exhibits a peak absorbance at 518 nm [1].
Reference:
[1]. Kraus NA, Ehebauer F, Zapp B, Rudolphi B, Kraus BJ, Kraus D. Quantitative assessment of adipocyte differentiation in cell culture. Adipocyte. 2016 Oct 1;5(4):351-8.
Oil Red O(红油O,溶剂红27号,苏丹红5B)是一种脂溶性染料,用于在冰冻切片上染色中性甘油三酯和脂质,以及在石蜡切片上染色某些脂蛋白。它呈现为红色粉末,吸收峰位于518nm[1]。
















