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Safety Information

114502

Sigma-Aldrich

Methyl Red sodium salt

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
Colour Index Number:
13020
Beilstein:
4065488
EC Number:
212-682-9
MDL number:
MFCD00002426
UNSPSC Code:
12171500
PubChem Substance ID:
24847176
NACRES:
NA.47

grade

ACS reagent

Quality Level

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%

λmax

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

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Biochem/physiol Actions

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

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

JAN Code

114502-25G:
114502-BULK:
114502-VAR:
114502-100G:

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Certificates of Analysis (COA)

Lot/Batch Number
SHBM4978
MKCG2743
MKCC7752
MKBS8003V
MKBK3405V

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Nanoscale, 3(8), 3269-3276 (2011-07-01)
Nanoporous and nonporous three-dimensional silicon nanowire arrays (SiNWAs) prepared with metal-assisted chemical etching method were investigated as photocatalysts in dye photodegradation systematically. In comparison with nonporous SiNWAs, nanoporous SiNWAs have higher surface area, larger pore volume, stronger light absorption and
Angel Martinez et al.
Proceedings of the National Academy of Sciences of the United States of America, 108(52), 20891-20896 (2011-12-14)
Noncontact optical trapping and manipulation of micrometer- and nanometer-sized particles are typically achieved by use of forces and torques exerted by tightly focused high-intensity laser beams. Although they were instrumental for many scientific breakthroughs, these approaches find few technological applications
Taiga Fujii et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 18(35), 10865-10872 (2012-07-26)
Asymmetric dye clusters with a single fluorophore (Cy3) and multiple quenchers (4'-methylthioazobenzene-4-carboxylate, methyl red, and 4'-dimethylamino-2-nitroazobenzene-4-carboxylate) were prepared. The dye and one-to-five quenchers were tethered through D-threoninol to opposite strands of a DNA duplex. NMR analysis revealed that the clusters
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