男人香蕉好大好爽视频,亚洲日韩中文字幕,欧美特级淫片,外国黄网站色视频免费,在线观看欧美精品,亚洲免费高清,日韩高清成人毛片不卡

Your Location：Home >Products >Natural pharmaceutical intermediates >1257-08-5

1257-08-5

  • Product Name:ECG
Inquiry

Product Details

Purity:99%

English Name：(-)-Epicatechin gallate

English alias：(−)-Epicatechin gallate;(−)-cis-2-(3,4-Dihydroxyphenyl)-3,4-dihydRo-1(2H)-benzopyran-3,5,7-triol 3-gallate, (−)-cis-3,3′,4,5,7-Pentahydroxy-flavane，3-gallate 

CAS No.：1257-08-5

Molecular Formula：C22H18O10

Molecular Weight: 442.38

Molecular structure：

Appearance：White crystalline powder

Purity：≥98%

Identification methods：Mass, NMR

Analysis method：HPLC-DAD or/and HPLC-ELSD

Mp：257～258℃

Solubility：soluble in methanol

Extraction Source：Catechu

Usage：For the determination and identification, pharmacological experiments

Storage：4℃ Refrigerated, sealed, dark

Expiration：2 years

Package：20mg, 50mg, 100mg, 1g, 10g, 100g, 1kg... The company can provide a large number of high-purity (-)-Epicatechin gallate according to customer requirements.

Relevant Products