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
中文无码制服丝袜人妻av| 亚洲人成电影在线天堂色| 亚洲综合色视频在线观看| 国产网红主播无码精品| 狠狠躁天天躁中文字幕无码| 国产真人做爰免费视频| 国产综合内射日韩久| 国产高清一区二区视频| 麻花传媒在线观看免费| 中文字幕欧美人妻精品一区| 熟女人妻视频| 国产猛男猛女超爽免费视频| 国产精品偷伦视频免费观看了| 亚洲精品成人网站在线播放| 国产乱人伦偷精品视频| 精品国产午夜理论片不卡| 国产精品视频自拍99| 亚洲综合一区无码精品| 一本一本久久a久久精品综合麻豆| 无遮挡十八禁污污网站在线观看 | 乱人伦人妻中文字幕无码久久网| 一本一本久久a久久综合精品蜜桃| 少妇又爽又刺激在线直播| 小12萝裸体自慰出白浆| 国产一区二区三区成人欧美日韩在线观看 | 成年轻人电影免费无码| 亚洲av无码国产一区二区三区| 香港三日本三级少妇三级视频| 国产精品一品二区三区的使用体验| 国产精品久久..4399| 一区二区在线 | 欧洲 | 日本三级香港三级人妇99| 国产乱子伦精品免费女| 国产日产欧产美| 久久精品无码一区二区三区| 内射一区二区精品视频在线观看| 亚洲女同精品中文字幕| 好爽毛片一区二区三区四| 免费裸体无遮挡黄网站免费看 | 亚洲精品无码一区二区三区久久久| 熟女人妻一区二区在线观看|