Merck

43412

Supelco

(+)-儿茶素

analytical standard

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别名:
(+)-氰醇, D-儿茶素
Empirical Formula (Hill Notation):
C15H14O6
CAS号:
分子量:
290.27
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.24

等级

analytical standard

质量水平

检测方案

≥99.0% (HPLC)

保质期

limited shelf life, expiry date on the label

technique(s)

HPLC: suitable
gas chromatography (GC): suitable

application(s)

food and beverages

格式

neat

储存温度

2-8°C

SMILES string

O[C@H]1Cc2c(O)cc(O)cc2O[C@@H]1c3ccc(O)c(O)c3

InChI

1S/C15H14O6/c16-8-4-11(18)9-6-13(20)15(21-14(9)5-8)7-1-2-10(17)12(19)3-7/h1-5,13,15-20H,6H2/t13-,15+/m0/s1

InChI key

PFTAWBLQPZVEMU-DZGCQCFKSA-N

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此商品
PHR1963C0567PHL89172
(+)-Catechin analytical standard

Supelco

43412

(+)-儿茶素

(+)-Catechin Pharmaceutical Secondary Standard; Certified Reference Material

Supelco

PHR1963

(+)-儿茶素

(−)-Catechin ≥97% (HPLC), from green tea

Sigma-Aldrich

C0567

(-)-儿茶素

(+)-Catechin phyproof® Reference Substance

PHL89172

(+)-儿茶素

assay

≥99.0% (HPLC)

assay

-

assay

≥97% (HPLC)

assay

≥95.0% (HPLC)

shelf life

limited shelf life, expiry date on the label

shelf life

-

shelf life

-

shelf life

-

technique(s)

HPLC: suitable, gas chromatography (GC): suitable

technique(s)

-

technique(s)

-

technique(s)

-

application(s)

food and beverages

application(s)

pharmaceutical

application(s)

-

application(s)

food and beverages

format

neat

format

neat

format

-

format

neat

一般描述

(+)-儿茶素是多酚类黄酮儿茶素的对映体。它具有优异的抗氧化性能,存在于各种草药、蔬菜、水果、绿茶、巧克力和红酒中。

应用

本分析标准品还可 用作:
  • 利用高效液相色谱法(HPLC), 结合光二极管阵列检测器(PAD)和圆二色(CD)检测器, 建立五种Byrsonima物种叶提取物和浸泡液中 儿茶素及其非对映异构体的含量 测定方法
  • 基于新型吸附剂磁固相萃取法(MSPE) 测定市售绿菜休和红茶样品中 儿茶素的含量—O-羧甲基-壳聚糖-g-丙烯酸钠 盐(O-CMCs-g-AAS)共聚物沉积于磁性氧化石墨烯(MGO)上, 用于样品预处理和气相色谱-质谱(GC-MS)
  • 利用超高效液相色谱- 三重四极杆串联质谱(UHPLC-MS-MS)技术,对三种不同市售茶冲剂(绿茶、 红茶和乌龙茶)中八种儿茶素和四种茶黄素 进行多重残留分析
  • 利用超声辅助 提取和高效液相色谱结合二极管阵列— 同时检测和定量分析Physalis angulata L植物样品中 四种酚类化合物,包括儿茶素、咖啡酸、芦丁和 反式肉桂酸
  • 利用基于HPLC法结合PDA检测技术, 对以40、60和90天为时间间隔收集45份 新鲜Jukro菜叶样品中的儿茶素、咖啡因和多酚类的多重残留 进行测定

包装

无底玻璃瓶。里面内容物插入融合锥中。

象形图

Exclamation mark

警示用语:

Warning

危险声明

危险分类

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

靶器官

Respiratory system

储存分类代码

11 - Combustible Solids

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable


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商品

Validated HPLC method (based on Ph. Eur. Monograph 2668) for quantifying catechins and caffeine in decaffeinated green tea using a Chromolith® High Resolution RP-18e column with advantages in terms of backpressure and matrix robustness.

实验方案

Protocol for HPLC Analysis of Flavonoids on Ascentis® RP-Amide

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