Skip to Content
Merck
All Photos(2)

Key Documents

View All Documentation

Safety Information

364797

Sigma-Aldrich

Disperse Orange 3

Dye content 90 %

Synonym(s):

4-(4-Nitrophenylazo)aniline

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Linear Formula:
O2NC6H4N=NC6H4NH2
CAS Number:
730-40-5
Molecular Weight:
242.23
Colour Index Number:
11005
Beilstein:
1842907
EC Number:
211-984-8
MDL number:
MFCD00007856
UNSPSC Code:
12352103
PubChem Substance ID:
57649529
NACRES:
NA.23

composition

Dye content, 90%

mp

~200 °C (dec.) (lit.)

λmax

443 nm

SMILES string

Nc1ccc(cc1)\N=N\c2ccc(cc2)[N+]([O-])=O

InChI

1S/C12H10N4O2/c13-9-1-3-10(4-2-9)14-15-11-5-7-12(8-6-11)16(17)18/h1-8H,13H2/b15-14+

InChI key

UNBOSJFEZZJZLR-CCEZHUSRSA-N

Looking for similar products? Visit Product Comparison Guide

General description

Disperse Orange 3 (DO3) is a monoazo dye, which contains 90% dye content plus dispersing agents and surfactants. It has two aromatic rings with an amino group on one of the rings and the other is substituted with a nitro group. It shows an absorption peak majoring at 415 nm.

Application

DO3 can be used in low concentration to improve the electro-optic properties of dichroic polymer-dispersed liquid crystals, which can be used as materials for display devices. It can also be used to functionalize epoxy-bisazo based polymers, which can be potentially used in sensors and optoelectronics.

Features and Benefits

Used to provide experimental verification of a two-level model for the enhancement of the nonresonant, nonlinear refractive index, with a decrease in absorption by reduction of a donor group strength.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H317,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

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

364797-5G:
364797-VAR:
364797-25G:
364797-BULK:

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKBG1610V
MKBF2008V
14708EH
13720EB
05930HU

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

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

Visit the Document Library

Customers Also Viewed

Slide 1 of 1

1 of 1

Disperse Red 17 analytical standard

Supelco

79892

Disperse Red 17

Biodegradation of a model azo disperse dye by the white rot fungus Pleurotus ostreatus.
Zhao X, et al.
International Biodeterioration & Biodegradation, 57(1), 1-6 (2006)
A A Ahmad et al.
Journal of hazardous materials, 170(2-3), 612-619 (2009-06-12)
The purpose of this work is to obtain optimal preparation conditions for activated carbons prepared from rattan sawdust (RSAC) for removal of disperse dye from aqueous solution. The RSAC was prepared by chemical activation with phosphoric acid using response surface
Anthony T-J Goon et al.
Contact dermatitis, 48(5), 248-250 (2003-07-19)
Cross-sensitization between para-phenylenediamine (PPD) and Disperse Orange 3 (DO3), among other textile dyes, has frequently been reported. We evaluated the frequency of simultaneous patch test reactions to PPD and a range of textile dyes. Retrospectively, we studied 128 patients who
Laura Malinauskiene et al.
Contact dermatitis, 68(2), 65-75 (2013-01-08)
Several disperse dyes (DDs) are still considered to be the most important allergens in textile dermatitis, but there are sparse data about their current use in textiles. The aim of this review was to evaluate published studies and reports on
Manfred Kneilling et al.
Experimental dermatology, 19(5), 435-441 (2010-02-02)
Patients sensitized to para-phenylenediamine (PPD) by semi-permanent tattoos increasingly develop threatening allergic reactions in response to black hair dye. The gold standard to diagnose allergic contact dermatitis is to perform epicutaneous patch tests, however, iatrogenic sensitizations and severe patch test
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