久久午夜无码鲁丝片麻豆精品_麻豆午夜小电影_麻豆午夜电影网_国产午夜精品一区二区_电家庭影院午夜_麻豆午夜免费视频_麻豆午夜家庭影院_麻豆电影_麻豆国产视频_欧美午夜理伦三级在线观看

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:
info@jiuruibiochem.com 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
主站蜘蛛池模板: 求av网址| 无码国产精品一区二区| 国产人妻久久精品二区三区特| 亚洲国产精品lv| 国产av1插花菊综合网| 国产精品久久久久久久久齐齐| 免费成人大香蕉| 資源18禁超污无遮挡无码| 国产精品色麻豆| 丰满人妻妇伦又伦精品APP国产| 我在车上CAO了麻麻| 久久精品国产欧美日韩| 色多多在深夜释放自己黄| 狠狠色丁香久久婷婷综合_中| 热久久久久久久久久久| 亚洲欧美国产国产精品综合| 日韩一级精品久久久久| 一女多男nP现代高H| 亚洲欧美日韩国产91| 一本色道久久综合亚洲精| 韩国年轻漂亮的妈妈| 性吧 校园春色| 午夜精品视频在线无码| 97伦理电影在线不卡| 国产精品色吧国产精品| 嗯 好深 啊 用力 哦 嗯 啊| 午夜在线观看国产视频| 欧美国产一级片在线观看| 91色婷婷久久久久合中文| 影音先锋影院中文无码| 99国产在线精品视频| 日韩精品久久久中文字幕人妻| 久久精品国产色欲A片小说| 久久久久久久久一区二区| 亚洲香蕉成人网| 国产又黄又爽又色的免费| 中文字幕日韩系列| 狠狠躁夜夜躁人人爽天天高潮| 日本一区二区无卡高清视频| 一级做a爰性色毛片免费| 欧美亚洲天堂色|