亚洲色情无码,韩国黄色毛片,超碰在线大香蕉,91性爱导航,加勒比综合久

Contact Us
  • Tel: +86-553-3811918(Jack)
  • Mobile:19955325717
  • Fax: +86-553-3838185
  • E-mail:info@bfinechem.com
  • URL:www.huahaibiochem.com
ProductsHome > Products

METHYL PARABEN


Trade name: JIEMOREL MP
Product name : METHYL PARABEN
Chemical name : Methyl 4-hydroxybenzoate
CAS# : 99-76-3
Molecular formula : C8H8O3
Structural formula:
Molecular weight : 152.15
Physical and chemical properties:white crystal, easily soluble in alcohol, ether and acetone, lightly soluble in water, boiling point: 270-280℃
Product quality standard

 
Item
Standrd
Appearance
white powder
Purity (in dry basis), %
98-102
Melting point, ℃
125~128
Loss on drying, %
≤0.5
Residue on ignition, %
≤0.1
Acidity
up to standard
4-Hydroxybenzoic acid and salicylic acid
up to standard
Solubility
easily soluble in alcohol, ether and acetone, lightly soluble in water


 Uses:
global registration, no stimulation on eyes, skin and mucosa
● widely applied in cosmetics, medical and food industry
● dosage: 0.2~0.5%
● PH range for application: 4~8,
Packaging: 25KG/fiber can or on demand
Storage: Should be preserved in cool and dry place sealed。shelf life is 36 months


[ Back ]


Copyright(C)2017,Wuhu Huahai Biotech Co., Ltd. All Rights Reserved. Supported by ChinaChemNet ChemNet Toocle Copyright Notice
找av导航| av色色 com| 特级毛片一区二区三区| 韩日无码毛片| 不卡av在线播放| 嫩草影院黄色| 加勒比无码精品一区| 久久伊人大香蕉| 日本C级特黄| 亚洲主播AV导航| 色婷婷中文一区二区| 在线视频欧美一区二区| 90av导航| 日本A无码| 亚洲成人电影无码| AV片网站| 色偷拍aV| 91色资源总站| 久久伊人综合| 一道本久久| av色色色色色.com| 青草淫色在线| 91人妻人人品人人| 91最新视频十区| 看看AV在线| 日韩成人一区| 国产欧美自拍海角| 丰满人妻一区二区| 黄色毛片一区二区三区| 日韩久久在线| 超碰人妻影院| 韩国无码一级AV| 久久久久久久久久97| 黄色片探花约avav| 免费看的AV网站| 国产精品性| 中文无码日本一级A片人| 在线免费av片| 日韩簧片在线观看| 九九热外国成人黄色片| 久久不射动漫AV|