叶绿素A
面议
细胞裂解和提取物

叶绿素A

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上海阿拉丁生化科技股份有限公司
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产品特点
规格信息
货号 CAS号
C109269-1mg 479-61-8
C109269-5mg 479-61-8
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产品描述

属性

熔点 150-153°C
敏感性 对光线和空气敏感
溶解性 Soluble in ethanol (10 μg/ml), acetone, benzene, ether, and chloroform. Insoluble in water.
存贮条件 储存于 -20°C

描述

应用 叶绿素用于肥皂、矿油、蜡和精油的着色。叶绿素或叶绿酸的衍生物,例如叶绿素铜[11006-34-1]、叶绿酸铁钠、叶绿酸铜钠,用于食品、糖果、饮料、牙膏等作着色剂和脱臭剂。叶绿酸衍生物可与杀菌剂洁尔灭、卤卡班等并用作为臭化妆品的配方。
产品介绍 86-92℃熔化结块,120-130℃变为粘性,并发泡。易溶于无水醇和醚,难溶于冷甲醇、石油醚和粗汽油。其醚溶液为亮绿色,其他有机溶液常为绿色到黄绿色并显红色荧光。旋光度-267°(丙酮-甲醇)。最大吸收值(乙醚)642,593,565,545,427nm。
生化机理 Chlorophyll a is an essential pigment in oxygenic photosynthesis. In photosystems, it is present as an antenna pigment as well as in reaction center I and II. Chlorophyll a is a blue-green pigment which absorbs light in 400-450nm and 640-660nm range. In photosynthesis, the energy absorbed by chlorophyll transforms carbon dioxide and water into carbohydrates and oxygen. When chlorophyll absorbs light energy, an electron in chlorophyll is excited from a lower energy state to a higher energy state. In this higher energy state, the electron is more readily transferred to another molecule. This starts a chain of electron-transfer steps, which ends with an electron transferred to carbon dioxide.
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