methylene radical

It has five unsaturated bonds and four active methylene, which makes it vulnerable to light, heat, metals and free radical.

EPA有五个不饱和键和4个活泼的亚甲基，这使得EPA极易受光、热、金属元素及自由基的影响。

互联网摘选

Methods: At the beginning of radical excision procedure of breast cancer, 2ml of methylene blue was injected into the tumor area to locate the sentinel lymphnode. Then all the stained or unstained lymph nodes were found and collected for further HE staining and pathologic examination.

方法：在乳腺癌根治性切除手术开始时将美蓝2ml注射于乳腺肿瘤区域，在切除标本中寻找蓝染的前哨淋巴结以及未染色的淋巴结，均行HE染色病理检查。

互联网摘选