Thermo Scientific Chemicals

Methyl Yellow, indicator

Catalog number: B21145.36
500 g, Each
Thermo Scientific Chemicals

Methyl Yellow, indicator

Catalog number: B21145.36
500 g, Each
Quantity
Catalog number: B21145.36
Price (USD)
Price: 293.00
Online price: 249.65
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Chemical Identifiers

CAS
60-11-7
IUPAC Name
N,N-dimethyl-4-(2-phenyldiazen-1-yl)aniline
Molecular Formula
C14H15N3
InChI Key
JCYPECIVGRXBMO-UHFFFAOYSA-N
SMILES
CN(C)C1=CC=C(C=C1)N=NC1=CC=CC=C1
Appearance (Color)
Yellow to orange
Form
Powder
Color Change
Red @ pH 2.9 to yellow @ pH 4.9
Dye Strength
95-105%
Identification (FTIR)
Conforms

Description

Methyl Yellow used as a pH indicator. It is an acid-base indicator that changes color from below pH 2.9 red to above pH 4.0 yellow and vice versa. Typical use is in the titration of a weak base with a strong acid.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Methyl Yellow used as a pH indicator. It is an acid-base indicator that changes color from below pH 2.9 red to above pH 4.0 yellow and vice versa. Typical use is in the titration of a weak base with a strong acid.

Solubility
Insoluble in water. Soluble in alcohol.

Notes
Transition interval: pH 2.9 (red) to pH 4.0 (yellow)
WARNING: Cancer – www.P65Warnings.ca.gov
RUO – Research Use Only

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