在线无码一区二区三区不卡|国产精品爽爽久久久久久竹菊|中文字幕在线无码一区二区三区|中文字幕精品无码一区二区

SZSE:002741
Chemical Reagents
D-Xylose?COA Report
  • CAS No.: 58-86-6
  • Molecular weight:150.13
  • Aliases:Wood sugar
  • Molecular formula:C5H10O5
  • EC No.:200-400-7
  • HS-No:2940000000
Information
Specification category:
Product No. Product name specifications
1.18303.010 D-Xylose BR25g
Characteristic: Appearance and properties:Colorless to white needle crystal or crystalline powder, slight odor and a refreshing sweetness. Dextral light and variable optical activity. Sweetness of sugar is about 40%, a presence in the sawdust, straw, corn cobs and other five-carbon sugar that can restore warm Fehling's solution. The body can not digest, can not use
Melting point(℃)(℃):144~145
Relative density(water=1)?(water=1):1.525
Solubility:Soluble in water(125g/100mL)、Pyridine and hot ethanol,Slightly soluble inCold ethanol
Technical indicators:
Item BC
Specific rotation[α]20D +18.5o~+19.5o
Residue on ignition(as SO4) ≤0.1%
Clarity test of solution Pass
Free acid (as CH3COOH) ≤0.015%
Chloride(Cl) ≤0.003%
Sulfate(SO4) ≤0.005%
Heavy metals(as Pb) ≤0.001%
Related Products

Copyright ? Guangdong?Guanghua?Sci-Tech?Co.,?Ltd. GuangDong ICP No. 14033791-1
99精品视频在线观看| 精品久久久久久中文字幕大豆网| 日本人妻丰满熟妇久久久久久| 国产精品玖玖玖在线| 熟睡人妻被讨厌的公侵犯深田咏美 | 日韩精品中文一二三区| 边啃奶头边躁狠狠躁| 午夜福利视频合集1000| 疯狂三人交性欧美| 国产成人精品a视频| 国产无遮挡裸体免费视频在线观看| 亚洲精品尤物av在线观看不卡| 亚洲欧美综合区丁香五月小说| 精品国际久久久久999波多野| 午夜视频在线观看一区二区三区| 亚洲精品无码久久| 放荡人妻一区二区三区| 国产毛1卡2卡3卡4卡免费观看 | 97精品久久久久中文字幕| 国产伦孑沙发午休精品| 色八a级在线观看| 人妻天天爽夜夜爽一区二区| 欧美牲交a欧美牲交| 看全黄大色黄大片美女 | 亚洲熟女AV综合网五月| 国产亚洲人成a在线v网站| 亚洲中文字幕AV在天堂| 夜色资源站www国产在线视频| 人妻无码一区二区三区TV| 国产人妻人伦精品久久久| 蜜桃一区二区三区| 未满十八18禁止午夜免费网站| 亚洲精品无码av人在线观看国产| 亚洲熟妇av一区二区三区浪潮| 好好日网站| 精品一区二区亚洲国产| 在线a人片免费观看| 亚洲精品无码成人片| 免费无码av片在线观看潮喷| 精品黑人一区二区三区| 久久精品国产清高在天天线|