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Merck
CN

344664

Sigma-Aldrich

Orange OT

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:
Molecular Weight:
262.31
Colour Index Number:
12100
Beilstein:
8330630
EC Number:
MDL number:
UNSPSC Code:
12171500
PubChem Substance ID:
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composition

Dye content, 75%

mp

124-126 °C (lit.)

λmax

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

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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

Health hazard

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Carc. 2

Storage Class Code

13 - Non 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 Information

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Calixarenes, a Versatile Class of Macrocyclic Compounds, 180-180 (2012)
Artificial chaperone-assisted refolding of carbonic anhydrase B.
Rozema D and Gellman SH
The Journal of Biological Chemistry, 271(7), 3478-3487 (1996)
S Adachi et al.
Journal of pharmacobio-dynamics, 5(4), 273-277 (1982-04-01)
Effect of potent cytochrome P-448 inducer, 1-m-tolueneazo-2-naphthol (m-TAN) on hepatic microsomal UDP-glucuronyl-transferase (UDPGT) activity was studied. The UDPGT activity reached the maximum level on the fifth day after either a single injection or consecutive daily administrations. The UDPGT activities towards
O Schimmer et al.
Mutation research, 249(1), 105-110 (1991-07-01)
Seven naturally occurring furoquinoline alkaloids were investigated for their photobiological activity using arg-1 cells of Chlamydomonas reinhardtii. UV-A-mediated toxicity of the compounds was calculated from the colony-forming ability of the treated cells. The UV-A-mediated mutagenicity was measured by counting the
Bhakti R Petigara et al.
Journal of AOAC International, 90(5), 1373-1378 (2007-10-25)
A reversed-phase liquid chromatographic method was developed to determine parts-per-million and higher levels of Sudan 1, 1-(phenylazo)-2-naphthalenol, in the disulfo monoazo color additive FD&C Yellow No. 6 and in a related monosulfo monoazo color additive, D&C Orange No. 4. Sudan

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