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250198 Sigma-Aldrich

Methyl Red

ACS reagent, crystalline

Synonym: 2-(4-Dimethylaminophenylazo)benzoic acid, 4-Dimethylaminoazobenzene-2′-carboxylic acid, Acid Red 2

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Cell Biology, Hematology and Histology, Indicators,
grade   ACS reagent
form   crystalline
visual transition interval   4.2 - 6.2, pink to yellow
mp   179-182 °C(lit.)
solubility   ethanol: soluble1 mg/mL
absorption   λmax 410 nm

Description

Packaging

25, 100 g in glass bottle

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Methyl Red sodium salt

Crystalline

Safety & Documentation

Safety Information

Symbol 
GHS09  GHS09
Hazard statements 
Precautionary statements 
WGK Germany 
2
RTECS 
DG8960000

Documents

Certificate of Analysis

Certificate of Origin

Protocols & Articles

Peer-Reviewed Papers

References

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Altered ion-responsive gene expression in Mmp20 null mice. Tye CE, Sharma R, Smith CE, et al. J. Dent. Res. 89(12), 1421-6, (2010)

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Improvement of RNAi activity and strand selectivity of RISC formation by modified siRNA involving intercalators near 5' termini. Ito H, Urushihara M, Liang X, et al. ChemBioChem. 13(2), 311-5, (2012)

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Highly active and enhanced photocatalytic silicon nanowire arrays. Wang FY, Yang QD, Xu G, et al. Nanoscale 3(8), 3269-76, (2011)

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Synergistic effect in treatment of C.I. Acid Red 2 by electrocoagulation and electrooxidation. Zhang XD, Hao JD, Li WS, et al. J. Hazard. Mater. 170(2-3), 883-7, (2009)

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Enhancement of oxyanion and diatrizoate reduction kinetics using selected azo dyes on Pd-based catalysts. Shuai D, Chaplin BP, Shapley JR, et al. Environ. Sci. Technol. 44(5), 1773-9, (2010)

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Large-area optoelastic manipulation of colloidal particles in liquid crystals using photoresponsive molecular surface monolayers. Martinez A, Mireles HC, and Smalyukh II Proc. Natl. Acad. Sci. U. S. A. 108(52), 20891-6, (2011)

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Construction of an integrated enzyme system consisting azoreductase and glucose 1-dehydrogenase for dye removal. Yang Y, Wei B, Zhao Y, et al. Bioresour. Technol. 130, 517-21, (2013)

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Development of a novel colorimetric indicator label for monitoring freshness of intermediate-moisture dessert spoilage. Nopwinyuwong A, Trevanich S, and Suppakul P Talanta 81(3), 1126-32, (2010)

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Helianthin induces antiproliferative effect on human glioblastoma cells in vitro. Alexandru O, Dragutescu L, Tataranu L, et al. J. Neurooncol. 102(1), 9-18, (2011)

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Reversed assembly of dyes in an RNA duplex compared with those in DNA. Fujii T, Urushihara M, Kashida H, et al. Chemistry 18(42), 13304-13, (2012)

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Influence of artificial mediators on yeast-based fuel cell performance. Babanova S, Hubenova Y, and Mitov M J. Biosci. Bioeng. 112(4), 379-87, (2011)

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Bulge-like asymmetric heterodye clustering in DNA duplex results in efficient quenching of background emission based on the maximized excitonic interaction. Fujii T, Hara Y, Osawa T, et al. Chemistry 18(35), 10865-72, (2012)

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Development of a membrane-less dynamic field gradient focusing device for the separation of low-molecular-weight molecules. Burke JM, Smith CD, and Ivory CF Electrophoresis 31(5), 902-9, (2010)

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Adsorption of methylene blue and methyl red dyes from aqueous solutions onto modified zeolites. Ioannou Z, Karasavvidis Ch, Dimirkou A, et al. Water Sci. Technol. 67(5), 1129-36, (2013)

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Microfluidic preparative free-flow isoelectric focusing in a triangular channel: system development and characterization. Wen J, Albrecht JW, and Jensen KF Electrophoresis 31(10), 1606-14, (2010)

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Photodegradation of methyl red by advanced and homogeneous photo-Fenton's processes: a comparative study and kinetic approach. Devi LG, Raju KS, and Kumar SG J. Environ. Monit. 11(7), 1397-404, (2009)

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Role of tyrosine 131 in the active site of paAzoR1, an azoreductase with specificity for the inflammatory bowel disease prodrug balsalazide. Wang CJ, Laurieri N, Abuhammad A, et al. Acta Crystallogr. Sect. F Struct. Biol. Cryst. Commun. 66(Pt 1), 2-7, (2010)

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Metabolism of azo dyes by human skin microbiota. Stingley RL, Zou W, Heinze TM, et al. J. Med. Microbiol. 59(Pt 1), 108-14, (2010)

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Brevibacillus laterosporus MTCC 2298: a potential azo dye degrader. Gomare SS and Govindwar SP J. Appl. Microbiol. 106(3), 993-1004, (2009)

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Preconcentration of aqueous dyes through phase-transfer liquid-phase microextraction with a room-temperature ionic liquid. Chen HL, Chang SK, Lee CY, et al. Anal. Chim. Acta 742, 54-8, (2012)

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Probing the NADH- and Methyl Red-binding site of a FMN-dependent azoreductase (AzoA) from Enterococcus faecalis. Feng J, Kweon O, Xu H, et al. Arch. Biochem. Biophys. 520(2), 99-107, (2012)

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Preparation and photocatalytic activity of an electrostatically self-assembled film made of [PMo12O40](3-) and a bipolar hemicyanine cation. Gao LH, Jiang WC, and Wang KZ J. Nanosci. Nanotechnol. 11(11), 9813-7, (2011)

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Fractal aggregates evolution of methyl red in liquid crystal. Ciuchi F, Sorriso-Valvo L, Mazzulla A, et al. Eur. Phys. J. E 29(2), 139-47, (2009)

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Purification and characterization of a thermostable laccase with unique oxidative characteristics from Trametes hirsuta. Haibo Z, Yinglong Z, Feng H, et al. Biotechnol. Lett. 31(6), 837-43, (2009)

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Look and see if it is time to induce protein expression in Escherichia coli cultures. Kelley KD, Olive LQ, Hadziselimovic A, et al. Biochemistry 49(26), 5405-7, (2010)

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Application of the mixture design to optimise the formulation of active consortia to decolorize azo-dye methyl red. Ayed L, Harbi B, Cheref A, et al. Water Sci. Technol. 62(12), 2837-45, (2010)

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Merck 14,6119

Beil. 16,IV,504

FT-IR 2 (3), 4079:B / RegBook 1 (2), 2741:B / Sax 6, 648 / Sigma FT-IR 1 (2), 971:C / Stains and Dyes Ref, 464 / Structure Index 1, 433:B:4

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