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114502

Methyl Red sodium salt

Name: Methyl Red sodium salt
Brand: SIAL

ACS reagent, Dye content 95 %

Synonym(s):

4-Dimethylaminoazobenzene-2′-carboxylic acid sodium salt, Acid Red 2

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About This Item

Empirical Formula (Hill Notation):

C₁₅H₁₄N₃NaO₂

CAS Number:

845-10-3

Molecular Weight:

291.28

EC Number:

212-682-9

UNSPSC Code:

12171500

NACRES:

NA.47

PubChem Substance ID:

24847176

MDL number:

MFCD00002426

Colour Index Number:

13020

Beilstein/REAXYS Number:

4065488

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Properties

grade

ACS reagent

Quality Segment

200

agency

suitable for SM 2310, suitable for SM 2320

form

powder

composition

Dye content, 95%

technique(s)

titration: suitable

visual transition interval

4.2-6.2, pink to yellow

solubility

water: 0.1%

λ_max

437 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].CN(C)c1ccc(cc1)\N=N\c2ccccc2C([O-])=O

InChI

1S/C15H15N3O2.Na/c1-18(2)12-9-7-11(8-10-12)16-17-14-6-4-3-5-13(14)15(19)20;/h3-10H,1-2H3,(H,19,20);/q;+1/p-1/b17-16+;

InChI key

GNTPCYMJCJNRQB-CMBBICFISA-M

Description

Biochem/physiol Actions

Methyl Red is a pH indicator and it changes color at a pH of 5.5.

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Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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