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1楼 liulingling
 等级:小学生 发帖数:3 回帖数:0
| 发帖时间 - 2005/8/13 11:22:58 | Product Information of Bio-samin Bio-samin: Black Sesame Extracted Sesamin Basic Info Formal Name: 1,3,4,9,10,10aS-hexahydro-5,6-dihydroxy- 1,1-dimethyl-7-isopropyl-2H-9S,4aR- (epoxymethano)phenanthren-12-one Molecular Formula C20H26O4 Molecular Weight 330.4 Odor : Characteristic Purity: No Less Than 90% Stability: ≥ 3 years at -20°C Supplied as: A crystalline solid UV/Vis: λmax: 285 nm Laboratory Procedure For long term storage, we suggest that sesamin be stored as supplied at -20°C. It will be stable for at least three years. Sesamin is supplied as a crystalline solid. A stock solution may be made by dissolving the sesamin in an organic solvent purged with an inert gas. Sesamin is soluble in organic solvents such as ethanol, DMSO, and dimethyl formamide. The solubility of sesamin in these solvents is 0.5, 12, and 33 mg/ml, respectively. Sesamin will be stable for at least six months in these solvents if stored at -20°C. Sesamin is sparingly soluble in aqueous buffers. Further dilutions of the stock solution into aqueous buffers or isotonic saline should be made prior to performing biological experiments. For maximum solubility in aqueous buffers, sesamin should first be dissolved in DMF and then diluted with the aqueous buffer of choice. Sesamin has a solubility of 50 µg/ml in a 1:10 solution of DMF:PBS (pH 7.2) using this method. Store aqueous solutions of sesamin on ice and use within 12 hours of preparation. Although the aqueous solutions of sesamin may be stable for more than 12 hours, we strongly recommend using a fresh preparation each day. Merchant Contact Card: Company Name: Organic Herb Inc. (More information about this company) Contact Person: mary Liu Address: changsha, China Postcode: 410100 Telephone: 86 731 4060828 Mobile: 131 8709 3042 Fax: 86 731 4023669 Web Site: http://www(dot)organic-herb(dot)com Email: mary@organic-herb(dot)com
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2楼 rachelherb
 等级:小学生 发帖数:0 回帖数:2
| 发帖时间 - 2011/7/26 19:32:42 | hello
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3楼 danxiaoban
 等级:小学生 发帖数:0 回帖数:7
| 发帖时间 - 2011/9/6 13:59:36 | Weihai Huanyu Chemical Machinery Co., Ltd. produce all kinds of reactors, pressure vessels, heat exchangers, storage tank equipment, relying on advanced technology and strong technical force, professional manufacturer manufacturing reactor, pressure vessels and heat exchangers and other products well received. Production of scientific research, production, development, sales, imports and exports of small and medium-scale experimental magnetic reactor, heat exchangers, pressure vessels, Weihai Universal also offers a variety of professional reactor, heat exchangers, pressure vessels。
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