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Merck
CN

212288

Disperse Orange 1

Dye content ~15 %

Synonym(s):

4-(4-Nitrophenylazo)diphenylamine

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About This Item

Linear Formula:
O2NC6H4N=NC6H4NHC6H5
CAS Number:
2581-69-3
Molecular Weight:
318.33
PubChem Substance ID:
24852726
UNSPSC Code:
12171500
Colour Index Number:
11080
NACRES:
NA.47
EC Number:
219-954-6
MDL number:
MFCD00007311

Key Documents

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InChI key

YFVXLROHJBSEDW-QZQOTICOSA-N

InChI

1S/C18H14N4O2/c23-22(24)18-12-10-17(11-13-18)21-20-16-8-6-15(7-9-16)19-14-4-2-1-3-5-14/h1-13,19H/b21-20+

SMILES string

[O-][N+](=O)c1ccc(cc1)\N=N\c2ccc(Nc3ccccc3)cc2

form

powder

composition

Dye content, ~15%

λmax

483 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

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Storage Class

13 - Non 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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Certificates of Analysis (COA)

Lot/Batch Number
MKCD9120
MKBX8141V
MKBT7911V
MKBK2161V
MKBH2085V

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Late patch test reaction to Disperse Orange 1 not related to active sensitization.
L Malinauskiene et al.
Contact dermatitis, 63(5), 298-299 (2010-10-16)
Gareth O S Williams et al.
Lab on a chip, 12(18), 3356-3361 (2012-07-07)
Photonic crystal fibre constitutes an optofluidic system in which light can be efficiently coupled into a solution-phase sample, contained within the hollow core of the fibre, over long path-lengths. This provides an ideal arrangement for the highly sensitive monitoring of
Elisa R A Ferraz et al.
Journal of toxicology and environmental health. Part A, 75(16-17), 991-999 (2012-08-03)
During the dyeing process in baths approximately 10 to 15% of the dyes used are lost and reach industrial effluents, thus polluting the environment. Studies showed that some classes of dyes, mainly azo dyes and their by-products, exert adverse effects
Laura Malinauskiene et al.
Dermatitis : contact, atopic, occupational, drug, 22(6), 335-343 (2012-06-02)
It is known that some patch-test preparations containing disperse dyes contain impurities with unknown relevance for the development or elicitation of contact allergy. To evaluate the significance of the impurities found in the commercial dyes Disperse Orange 1 (DO1) and
G A R Oliveira et al.
Mutation research, 703(2), 200-208 (2010-09-21)
The treatment of textile effluents by the conventional method based on activated sludge followed by a chlorination step is not usually an effective method to remove azo dyes, and can generate products more mutagenic than the untreated dyes. The present
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