亚洲一区二三区好的精华液,精品乱子伦一区二区三区,好吊视频一区二区三区,国精产品一区一区三区MBA下载,久久久久国产一区二区三区,国产SUV精品一区二区,一区二区三区国产精华护肤品,精品乱码一区内射人妻无码,久久久久精品国产成人不卡一区二区三区亚洲精品乱码久久久久66蜜桃91精品综合久久_亚洲乱黄精品a级中文字幕精品国产18久久久久久_欧美性猛交xxxx免费看久久久_欧美乱人伦人妻中文字幕不卡_色一情一乱一伦一小说免费看精品国产_久久久久精品国产黄A三级aa国产成人av一区二区三区_成人一级黄在线观看_国产精品高潮呻吟久久AV无码_亚洲午夜久久久精品影院 ,安徽妇搡BBBB搡BBBB,四个熟妇搡BBBB搡BBBB,四川少妇搡BBW搡BBBB,HD老熟女BBN老淑女,女BBBB槡BBBB槡BBBB,擦老太BBB擦BBB擦BBB擦,四川W搡BBB搡WBBB搡 ,免费A级毛片在线播放不收费|亚洲精品～无码久久久久APP|日韩中文人妻无码不卡合集|91久久国产最好的精华液

2,4-表油菜素內(nèi)酯溶液 1mg/ml

● 產(chǎn)品包裝：

22R,23R,24R-2α,3α,22,23-Tetrahydroxy-B-homo-7-oxa-5α-ergostan-6-one

C₂₈H₄₈O₆  MW: 480.68  CAS：78821-43-9 

● Storage：-20℃

● Specifications:

Soluble…………1 mg/ml (2mM) in Ethanol

Appearance…….colorless clear solution

● Introduction：

Some years ago, organic extracts of Brassica napus pollen were found to promote stem elongation and cell division in plants. The active components were identified as steroids and have therefore been named brassinosteroids. It is now recognized more and more that brassinosteroids are genuine plant hormones. In the nM to μM range, 2,4-epibrassinolide has been found to promote cell division of protoplasts and to cause hypocotyls elongation, but also to inhibit root extension. Evidence is mounting that it plays a role in vascular differentiation. Much research has been done on the ameliorative effect of brassinosteroids during stress.

●    Reference:

Clouse S D and Sasse J M. Brassinosteroids: essential regulators fo plant growth and development. Annu. Rev. Plant Physiol. Plant Mol. Biol. 49:427-451 1998