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Merck

229253

Sigma-Aldrich

胭脂红酸

≥90% (HPLC)

别名:

天然红4

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About This Item

经验公式(希尔记法):
C22H20O13
CAS号:
分子量:
492.39
颜色索引号:
75470
Beilstein:
71651
EC 号:
MDL编号:
UNSPSC代码:
12171500
PubChem化学物质编号:
NACRES:
NA.47

质量水平

方案

≥90% (HPLC)

表单

powder

旋光性

[α]20/D +3.1°, c = 1 in H2O

颜色

purple to red-purple
red to very dark red

mp

136 °C

溶解性

1 N acetic acid: 1%, clear to hazy, red

λmax

495 nm

ε (消光系数)

≥13000 at 222-228  nm in ethanol at 0.03 g/L
≥18000 at 275-281 nm in ethanol at 0.03 g/L

应用

diagnostic assay manufacturing
hematology
histology

储存温度

room temp

SMILES字符串

Cc1c(C(O)=O)c(O)cc2C(=O)c3c(O)c(O)c([C@@H]4O[C@H](CO)[C@@H](O)[C@H](O)[C@H]4O)c(O)c3C(=O)c12

InChI

1S/C22H20O13/c1-4-8-5(2-6(24)9(4)22(33)34)13(25)10-11(15(8)27)16(28)12(18(30)17(10)29)21-20(32)19(31)14(26)7(3-23)35-21/h2,7,14,19-21,23-24,26,28-32H,3H2,1H3,(H,33,34)/t7-,14-,19+,20-,21+/m1/s1

InChI key

DGQLVPJVXFOQEV-JNVSTXMASA-N

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一般描述

胭脂红是一种胭脂虫产品,通常以胭脂红酸铝盐和钙盐的形式提供。胭脂红酸可用于人类医学细胞诊断,并用于人类来源样本材料的组织学研究。它适用于组织切片中的细胞核染色。它可用于各种染色方法,包括糖原和粘液物质(贝斯特氏胭脂红)检测法,核酸染色或活体染色。

应用

胭脂红酸 (CI 75470) 可用于 Orth 锂胭脂红核染色技术、贝斯特式糖原染色和 Southgates 粘蛋白胭脂红法。

储存分类代码

11 - Combustible Solids

WGK

WGK 2

个人防护装备

Eyeshields, Gloves, type N95 (US)


历史批次信息供参考:

分析证书(COA)

Lot/Batch Number

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Gabriel J. Lauro, Jack Francis
Natural Food Colorants: Science and Technology (2000)
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Natural Food Colorants (2012)
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Shokuhin eiseigaku zasshi. Journal of the Food Hygienic Society of Japan, 51(1), 19-27 (2010-03-09)
A quantitative NMR (qNMR) method was applied for the determination of carminic acid. Carminic acid is the main component in cochineal dye that is widely used as a natural food colorant. Since several manufacturers only provide reagent-grade carminic acid, there
Samanan Poowakanjana et al.
Journal of food science, 74(9), C707-C712 (2010-05-25)
Carmine used to color surimi seafood often seeps or bleeds from red-colored meat to white meat when vacuum-packed products go through high-temperature long-time pasteurization. Various physical and chemical treatments were examined to investigate means to inhibit or minimize carmine bleeding
Ana Serrano et al.
Analytical and bioanalytical chemistry, 401(2), 735-743 (2011-06-01)
A new analytical approach based on high-performance liquid chromatography with diode array detector (HPLC-DAD) and multivariate data analysis was applied and assessed for analyzing the red dye extracted from cochineal insects, used in precious historical textiles. The most widely used

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