一级黄色片免费的|中文字幕人妻少妇无码|欧美精品45一极精品|中文字幕乱码一区二区电影|国产免费观看一区二区三区|国产精品日韩欧美亚洲二区|中文字幕第一页一区二区三区|日韩欧美精品一区二区综合视频

    <noscript id="rsoid"><dl id="rsoid"></dl></noscript>

    <source id="rsoid"><ins id="rsoid"></ins></source>
            1. 
              
              • <td id="rsoid"><ins id="rsoid"><label id="rsoid"></label></ins></td>
                <track id="rsoid"><dl id="rsoid"><delect id="rsoid"></delect></dl></track>
                <source id="rsoid"><ins id="rsoid"></ins></source>
                1. Welcome,

                  Contact:Xian Jun
                  Tel:+86-28-37496355
                  Mobile:+86-13378369793
                        +86-13378369793
                  Fax:+86-28-37496355
                  Add:Group Ten, Qianjin Village, Jiangjun Town, HOngya County, Sichuan, China
                  E-mail:yaxing@yx-aminoacid.com

                  Products
                  L-Arginine-L-Pyroglutamate

                  CAS :56265-06-6
                  EINECS: 260-081-5
                  Specification:25KG/barrel
                  Molecular Formula:C11H21N5O5
                  Molecular Weight:303.3
                  Property:White powder £¬water soluble.
                  Production Standard:AJI97£¬USP25£¬EP5
                  Main Use:
                  1. Pharmaceutical intermediates, medical supplements.
                  2. In cosmetics as an antioxidant, and phenolic derivatives collaborative Use, to prevent skin aging.
                  3. As a food additive, used to drink.

                  Property

                  Standard

                  Appearance

                  White crystal

                  Rotary rate [α]20/D
                  (C=8 in 6N HCl)

                  +16.5°~+18.5°

                  Solubility

                  No less than 95.0%

                  Chlorids (Cl)

                  No more than 0.020%

                  Amonnium salt (NH4)

                  No more than 0.020%

                  Sulphur salts (SO4)

                  No more than 0.020%

                  Iron (Fe)

                  No more than 10ppm

                  Heavy Metal (Pb)

                  No more than 10ppm

                  Arsenic salt (As2O3)

                  No more than 1ppm

                  Drying Loss

                  No more than 0.50%

                  Burning residues

                  No more than 0.10%

                  Content

                  98.5% to 101.5%

                  pH

                  6.0 to 7.0

                   
                   
                   
                   
                   
                  敖汉旗| 台东县| 夏河县| 洮南市| 手机| 新巴尔虎左旗| 铜川市| 宁夏| 江山市| 手游| 义乌市| 泸溪县| 武宣县| 镇远县| 平利县| 江油市| 香港| 伊金霍洛旗| 久治县| 资中县| 平果县| 高阳县| 益阳市| 孝昌县| 伊金霍洛旗| 津南区| 台南市| 龙川县| 潜山县| 隆回县| 新昌县| 金塔县| 伊吾县| 东源县| 潮安县| 正定县| 阿拉尔市| 浦东新区| 庄浪县| 祁阳县| 新巴尔虎左旗|