欧美婷婷精品激情 I 91福利视频在线 I 日韩少妇乱码一区二区三区免费 I 亚洲男人天堂2018av I 91欧美大片 I 97人人超 I www.九色91 I 1111111少妇在线观看 I 男人猛躁进女人全程无遮挡 I 北京一级毛片 I 爆乳高潮喷水无码正在播放 I 国产亚洲视频在线观看 I 欧美久久久久 I 黑人巨大精品欧美久久 I 久久久www影院人成_免费 I 校园 都市 经典 激情 另类 I 国产伦精品一区二区三区 I 秋霞国产午夜伦午夜福利片 I 亚洲一区二区日本 I 中文亚洲欧美日韩 I 中国二级毛片 I 3344成人网 I 亚洲天砖砖区免费 I 野外被强j到高潮免费观看 I 日韩精品黄色片 I 免费看黄色一级大片 I 久久视频在线看 I 大肉大捧一进一出好爽 I 欧美一卡2卡三卡4卡乱码免费 I 日韩精品视频久久 I 在线视频在线 I 性生活——一级大片 I 最裸欧美人真 I 精品日韩美女 I 成av人免费青青久

Welcome to Jiurui Biology Chemistry Co.,?Ltd website!
Jiurui Biology  Chemistry Co.,?Ltd
Key words: Tannic acid, gallic acid, benzoic acid, hesperidin, chlorogenic acid, resveratrol
Gallnut range
Home > Products > Gallnut range
Gallic acid_anhydrous

Gallic acid_anhydrous

Name: Gallic acid_anhydrous
Synonyms: gallic acid
chemical name: 3,4,5-hydroxybenzoic acid
of the formula: C7H6O5

Molecular weight: 170.12

Structural formula:

Property: This product is white or white crystalline powder, soluble in 85 parts of water, 6 parts of ethanol, 2 parts of boiling water, slightly soluble in ether.

Specifications: The product complies with the national industry standard LY-T1301; European standard (first class); Japanese national JIS standard (first class); United States Pharmacopoeia; superior product

Technical index:

 

Gallic acid monohydrate

Anhydrous gallic acid

Appearance

White powder

White powder

Content%

≥99.0

≥99.0

Loss on drying%

≤10

≤0.5

Residue on ignition%

≤0.1

≤0.1

Chroma

≤180

≤180

Tannic acid ppm

1.0

1.0

Turbidity (50MG/ML ETOH)

clarify

clarify

Other Index

See COA

See COA

 

Uses: This product is widely used in industries such as medicine, dyes, chemical industry and organic synthesis, as well as the analysis of rare metals.

Storage: Avoid moisture and light, sealed tightly, no contact with metal.

Product validity: two years.

Packing: In woven bag with plastic inside and outside, net weight 25 kg per bag. It can be packaged according to customer requirements, such as carton or cardboard drum, and then palletized.

Main Products:Tannic acid(Industrial grade)  Gallic acid_anhydrous  Methyl gallate  Propyl gallate  Pyrogallic acid/Pyrogallol  3,4,5-Trimethoxy benzoic acid  
Contact Us

Contact Us

24-hour service hotline

+86-744-8561603(International Business)
+86-744-8561665,+86-744-8561604?(Domestic Business)
E-mail:
sales@jiuruibiochem.com
Address:Section C, Economic Development Zone, Zhangjiajie, Hunan, China.
Jiurui Biology & Chemistry Co.,?Ltd
Copyright(C)2020, Jiurui Biology & Chemistry Co.,?Ltd . All Rights Reserved. Supported by  ChemNet ChinaChemNet Toocle