Merck
CN

114510

Sigma-Aldrich

甲基橙

ACS reagent, Dye content 85 %

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别名:
4-[4-(二甲氨基)苯基偶氮基]苯磺酸 钠盐, 半日花素 B, 橙黄 III, 酸性橙 52
Empirical Formula (Hill Notation):
C14H14N3NaO3S
CAS号:
分子量:
327.33
颜色索引号:
13025
Beilstein:
4732884
EC 号:
MDL编号:
PubChem化学物质编号:
NACRES:
NA.47

等级

ACS reagent

质量水平

形式

powder

组成

Dye content, 85%

technique(s)

titration: suitable

pH值(酸碱度)

3.0-4.4, pink to yellow

visual transition interval

3.2-4.4, red to yellow

mp

>300 °C

λmax

505 nm

application(s)

diagnostic assay manufacturing
hematology
histology

储存温度

room temp

SMILES string

[Na+].CN(C)c1ccc(cc1)\N=N\c2ccc(cc2)S([O-])(=O)=O

InChI

1S/C14H15N3O3S.Na/c1-17(2)13-7-3-11(4-8-13)15-16-12-5-9-14(10-6-12)21(18,19)20;/h3-10H,1-2H3,(H,18,19,20);/q;+1/p-1/b16-15+;

InChI key

STZCRXQWRGQSJD-GEEYTBSJSA-M

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此商品
68250199567861286
Methyl Orange ACS reagent, Dye content 85 %

Sigma-Aldrich

114510

甲基橙

Methyl Orange for microscopy (Hist.), indicator (pH 3.0-4.4)

Sigma-Aldrich

68250

甲基橙

Ethyl Orange sodium salt indicator grade, Dye content 90 %

Sigma-Aldrich

199567

乙基橙 钠盐

Orange G certified by the Biological Stain Commission, Dye content 80 %

Sigma-Aldrich

861286

橙黄 G

form

powder

form

powder

form

-

form

powder

composition

Dye content, 85%

composition

-

composition

Dye content, 90%

composition

Dye content, 80%

technique(s)

titration: suitable

technique(s)

titration: suitable

technique(s)

titration: suitable

technique(s)

-

pH

3.0-4.4, pink to yellow

pH

3.0-4.4, pink to yellow

pH

-

pH

-

mp

>300 °C

mp

-

mp

-

mp

-

一般描述

甲基橙(C.I.13025)是一种对二甲氨基偶氮苯磺酸的钠盐。它是一种橙色的合成染料,颜色会随着溶液的pH值而变化。在酸性溶液中呈红色,在碱性溶液中呈黄色。

应用

甲基橙可用作细胞汁液的
  • pH指示剂
  • 在染色花粉管时与结晶紫一起对比染色
  • 多色组织学染色方案的组成部分指示剂,
  • 例如在草酸和丙二酸的检测中
  • 在其他生物医学应用中使用,包括用于薄膜剂量计和溴离子的检测试剂。

生化/生理作用

甲基橙是一种偶氮染料,可用作pH指示剂。

象形图

Skull and crossbones

警示用语:

Danger

危险声明

预防措施声明

危险分类

Acute Tox. 3 Oral

储存分类代码

6.1C - Combustible, acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges


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