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131083

Sigma-Aldrich

4-Phenylazophenol

new

98%

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Synonym(s):
4-Hydroxyazobenzene, Solvent Yellow 7
Linear Formula:
C6H5N=NC6H4OH
CAS Number:
Molecular Weight:
198.22
Colour Index Number:
11800
Beilstein:
957567
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

Quality Level

Assay

98%

form

powder

technique(s)

titration: suitable

mp

150-152 °C (lit.)

solubility

ethanol: 0.1%, clear

λmax

347 nm

ε (extinction coefficient)

10000 at 233-239 nm in methanol at 0.005 g/L

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Oc1ccc(cc1)\N=N\c2ccccc2

InChI

1S/C12H10N2O/c15-12-8-6-11(7-9-12)14-13-10-4-2-1-3-5-10/h1-9,15H/b14-13+

InChI key

BEYOBVMPDRKTNR-BUHFOSPRSA-N

Gene Information

human ... ESR1(2099)

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This Item
11439188390103624
4-Phenylazophenol 98%

Sigma-Aldrich

131083

4-Phenylazophenol

Bromophenol Blue ACS reagent

Sigma-Aldrich

114391

Bromophenol Blue

Thiazole Yellow G for microscopy (fluorescence indicator), adsorption indicator

Sigma-Aldrich

88390

Thiazole Yellow G

Sudan I Dye content ≥95 %

Sigma-Aldrich

103624

Sudan I

form

powder

form

powder

form

powder

form

powder

technique(s)

titration: suitable

technique(s)

titration: suitable

technique(s)

-

technique(s)

-

mp

150-152 °C (lit.)

mp

273 °C (lit.)

mp

-

mp

131-133 °C (lit.)

solubility

ethanol: 0.1%, clear

solubility

ethanol: 0.1%

solubility

hot water: 0.1 g/10 mL

solubility

chloroform: 1 mg/mL, clear, orange

λmax

347 nm

λmax

-

λmax

-

λmax

418 nm, 476 nm (2nd)

General description

4-Phenylazophenol is a polymethacrylates containing polar azo dye.

Application

4-Phenylazophenol (4PP) has been used to study mineralization by P. chrysosporium under nitrogen-sufficient and nitrogen-limiting culture conditions.

Pictograms

Environment

Hazard Statements

Hazard Classifications

Aquatic Chronic 2

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

Certificates of Analysis (COA)

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25G
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4-Aminoazobenzene analytical standard

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4-Aminoazobenzene

Fast Garnet GBC base 97%

Sigma-Aldrich

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Fast Garnet GBC base

Sudan II analytical standard

Supelco

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Sudan II

Sudan I Dye content ≥95 %

Sigma-Aldrich

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Sudan I

Sudan IV certified by the Biological Stain Commission, BioXtra

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Sudan IV

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