Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

19-3900

Sigma-Aldrich

Methyl Orange

SAJ first grade

Synonym(s):

4-[4-(Dimethylamino)phenylazo]benzenesulfonic acid sodium salt, Acid Orange 52, Helianthin, Orange III

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C14H14N3NaO3S
CAS Number:
547-58-0
Molecular Weight:
327.33
Colour Index Number:
13025
Beilstein:
4732884
EC Number:
208-925-3
MDL number:
MFCD00007502
UNSPSC Code:
12352107
PubChem Substance ID:
329751862

grade

SAJ first grade

form

solid

availability

available only in Japan

pH

3.0-4.4, pink to yellow

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

Looking for similar products? Visit Product Comparison Guide

Pictograms

Skull and crossbones
GHS06

Signal Word

Danger

Hazard Statements

H301

Precautionary Statements

P301 + P330 + P331 + P310

Hazard Classifications

Acute Tox. 3 Oral

Storage Class Code

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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Jing Cao et al.
Journal of hazardous materials, 239-240, 316-324 (2012-09-29)
Novel p-n junction photocatalysts BiOI/(BiO)2CO3 with different contents of BiOI were in situ synthesized by etching (BiO)2CO3 precursor with hydroiodic acid (HI) solution. X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), Fourier transform infrared spectrometry (FT-IR), energy-dispersive spectroscopy (EDS)
Katarzyna A Michalow et al.
Environmental science and pollution research international, 19(9), 3696-3708 (2012-10-12)
TiO(2):Nb nanopowders within a dopant concentration in the range of 0.1-15 at.% were prepared by one-step flame spray synthesis. Effect of niobium doping on structural, optical and photocatalytic properties of titanium dioxide nanopowders was studied. Morphology and structure were investigated by
P Kumar et al.
Colloids and surfaces. B, Biointerfaces, 103, 658-661 (2012-12-26)
In this paper, we report on biosynthesis of silver nanoparticles using Ulva lactuca (seaweed) at room temperature along with photocatalytic degradation of methyl orange dye. UV spectral analysis showed peak at 430 nm with special reference to the excitation of
Chia-Nan Lin et al.
Environmental science and pollution research international, 19(9), 3743-3750 (2012-10-12)
Solar wastewater treatment based on photocatalytic reactions is a green process that utilizes renewable energy resources and minimizes secondary pollution. Reactor design plays an important role in promoting treatment efficiency and throughput density (based on unit volume of the reactor).
Anjana Sarkar et al.
Nanotechnology, 23(47), 475711-475711 (2012-11-03)
The structure, composition and photocatalytic activity of TiO(2) nanoparticles annealed in various gas atmospheres (N(2), NH(3) and H(2)) were studied in this work. The effect of treatment on crystal structure, particle size, chemical composition and optical absorbance were assessed by
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service