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44565

Tropaeolin O sodium salt

indicator grade

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Synonym(s):

4-([2,4-Dihydroxyphenyl]azo)benzenesulfonic acid sodium salt, Acid Orange 6, Chrysoin, Resorcinol yellow

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Size/SKUAvailabilityPrice
25 g

Available to ship TODAYfromMILWAUKEE

$110.00

About This Item

Empirical Formula (Hill Notation):
C12H9N2O5SNa
CAS Number:
Molecular Weight:
316.27
UNSPSC Code:
41116105
NACRES:
NA.21
MDL number:
Colour Index Number:
14270
Beilstein/REAXYS Number:
4173410

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grade

indicator grade

composition

sulfated ash, 40-60%

technique(s)

UV/Vis spectroscopy: suitable, titration: suitable

loss

≤13.0% loss on drying

pH

11-13

λmax

488-492 nm in 0.1 M NaOH, ≥500 at 1% in 0.1 M NaOH (1 cm)

SMILES string

[Na+].Oc1ccc(\N=N\c2ccc(cc2)S([O-])(=O)=O)c(O)c1

InChI

1S/C12H10N2O5S.Na/c15-9-3-6-11(12(16)7-9)14-13-8-1-4-10(5-2-8)20(17,18)19;/h1-7,15-16H,(H,17,18,19);/q;+1/p-1/b14-13+;

InChI key

COEZWFYORILMOM-IERUDJENSA-M


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This Item
199567114510202029
description

indicator grade

description

indicator grade, Dye content 90 %

description

ACS reagent, Dye content 85 %

description

Dye content 70 %

technique(s)

UV/Vis spectroscopy: suitable, titration: suitable

technique(s)

titration: suitable

technique(s)

titration: suitable

technique(s)

titration: suitable

loss

≤13.0% loss on drying

loss

-

loss

-

loss

-

pH

11-13

pH

-

pH

3.0-4.4, pink to yellow

pH

1.5-2.7, red to yellow

composition

sulfated ash, 40-60%

composition

Dye content, 90%

composition

Dye content, 85%

composition

Dye content, 70%

λmax

488-492 nm in 0.1 M NaOH

λmax

474 nm

λmax

505 nm

λmax

414 nm

grade

indicator grade

grade

indicator grade

grade

ACS reagent

grade

-


Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable



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