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344664

Orange OT

Name: Orange OT
Brand: SIAL

Dye content 75 %

Synonym(s):

1-(o-Tolylazo)-2-naphthol, Solvent Orange 2

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About This Item

Linear Formula:

CH₃C₆H₄N=NC₁₀H₆OH

CAS Number:

2646-17-5

Molecular Weight:

262.31

Colour Index Number:

12100

PubChem Substance ID:

24861272

UNSPSC Code:

12171500

EC Number:

220-162-8

Beilstein/REAXYS Number:

8330630

MDL number:

MFCD00059523

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Properties

composition

Dye content, 75%

mp

124-126 °C (lit.)

λ_max

505 nm

SMILES string

Cc1ccccc1N=Nc2c(O)ccc3ccccc23

InChI

1S/C17H14N2O/c1-12-6-2-5-9-15(12)18-19-17-14-8-4-3-7-13(14)10-11-16(17)20/h2-11,20H,1H3

InChI key

BQFCCCIRTOLPEF-UHFFFAOYSA-N

Description

General description

Orange OT is a dye that is not soluble in aqueous solution. It is also known as (1-(2-methyl-phenylazo)-2-naphthol).

pictograms

GHS08

signalword

Warning

hcodes

H351

pcodes

P281

Hazard Classifications

Carc. 2

Storage Class

13 - Non Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type P3 (EN 143) respirator cartridges

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