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Sigma-Aldrich

METHYL ORANGE A.C.S. REAGENT

General description Methyl orange (C.I.

Description

General description

Methyl orange (C.I. 13025) is the sodium salt of p-dimethylaminoazobenzenesulfonic acid.It is an orange-colored synthetic dye, which changes color depending on the pH of the solution. It develops a red color in acidic solution and yellow color in basic solution.

Application

Methyl orange is used as a-

  • pH indicator in the cell sap
  • counterstain to crystal violet in staining pollen tubes
  • component of a polychrome histological stain
  • solution indicator, such as in assays of oxalic and malonic acids
  • in other biomedical applications that include use in film dosimeters and as a reagent for the assay of bromide ions.

Biochem/physiol Actions

Methyl Orange is an azo dye which works as a pH indicator.

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Specifications
UPC:
12161500
Condition:
New
Weight:
1.00 Ounces
HazmatClass:
Yes
Quantity:
500
Unit of Measurement:
GM
MPN:
114510-500G
CAS:
547-58-0
Catalog No. C005B-257083
Price: $1,567.61
List Price: $1,741.79
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