1024你懂的国产精品,国产无套粉嫩白浆在线精品,中文字幕在线亚洲日韩6页,国产日本一线在线观看免费,亚洲人成无码网www电影榴莲,消息称老熟妇乱视频一区二区,欧美+日韩+精品,俺来也俺去啦久久综合网,国产精品一国产AV麻豆 ,香蕉久久AⅤ一区二区三区

Hotline:
+86-515-88728598
+86-515-88728533

SEARCH

http://www.huahongchem.com

PRODUCTS

Add:Zhangzhuang Town, Yandu District, Yancheng city, Jiangsu, China

Zip code:224015

Tel:+86-515-88728598

Fax:+86-515-88728633

E-mail:sales@huahongchem.com

PRODUCTS

www.huahongchem.com

3,5-Dihydroxy benzoic acid

Product name

3,5-Dihydroxy benzoic acid

Molecular Formula

C7H6O4

CAS NO.

99-10-5

Structural formula

Properties

colorless crystalline powder, easily soluble in alcohol,ther and hot water. It turns pink with FeCl3

Appearance

White crystal powder

Content

≥99%

Melting point

235-237℃

Use

as intermediate for pharmaceuticals and synthetic resin etc.

Package

packed in fibre drum of 25kg net, lined with plastic bag.

LINK : Yancheng Huahong Chemical Co., Ltd. | Toocle

HOME | ABOUT US | PRODUCTS | FACTORY | JOBS | NEWS | HONORS | SALES | CONTACT | 中文版

Copyright(C)2018, Yancheng Huahong Chemical Co., Ltd. All Rights Reserved. Supported by Sunsirs ChemNet Toocle Copyright Notice 備案字號(hào):蘇ICP備09081238號(hào)

色偷偷男人的天堂亚洲av| 国产精品2| free性开放小少妇| 久久综合干| 国产美女精品视频线播放| 午夜男女xx00视频福利| 香蕉久久国产超碰青草| 少妇粗大进出白浆嘿嘿视频| 免费午夜无码片在线观看影院| 91产精品无码无套在线| 婷婷97狠狠成人免费视频| 九色最新网址| 激情内射亚州一区二区三区爱妻 | 亚洲欧美日韩在线不卡| 国产清纯在线一区二区vr| 亚洲AV无码国产成人久久强迫| 欧美精品亚洲精品日韩专区| 久久精品免费观看国产软件| 看全色黄大黄大色免费久久| 婷婷精品国产亚洲av| 国产爆乳无码一区二区麻豆| 成人无遮挡18禁免费视频| 偷拍自拍视频一区二区三区| 色综合色综合中文字幕| 亚洲av永久无码天堂影院| 久久国产精品老人性| 美女粉嫩饱满的一线天mp4| 久久人人爽人人爽人人片亞洲| 国产真实乱人偷精品人妻| www免费视频com| 一本色道久久综合亚洲精品不卡| 在线精品国精品国产尤物| 国产精品入口麻豆| 三上悠亚精品一区二区久久| 女人喷水高潮时的视频网站| 无码中文字幕乱在线观看| 中文字幕无码不卡免费视频| a级毛片毛片免费观看久| 亚洲乱码日产精品bd在线| 精品国产亚洲一区二区三区演员表 | 久久精品夜夜夜夜夜久久|