Products / pH Indicators


C.A.S. No. 6283-63-2


Assay ( acidimetric) > 99.5%
Appearance white to off- white powder
pH ( 5% in water) 2.0-2.2
Solubility ( 1% in dist. water) Clear solution
Sulfated ash < 0.05%
Melting point 184-187°C
Loss On Drying (110°C) < 0.5%

Chemical Name

N,N-diethyl 4-phenylenediamine sulfate (1:1)

InChI Key



Soluble in water; slightly soluble in ethanol, methanol.

Product Description:

A product for proteomics research,N,N-Diethyl-p-phenylenediamine sulfate is used for the spectrophotometric determination of drugs such as salbutamol sulphate, ritodrine hydrochloride and isoxsuprine hydrochloride containing phenolic group.Use of N, N-diethyl-p-phenylenediamine sulphate for the spectrophotometric determination of some phenolic and amine drugs.


N,N-Diethyl-p-phenylenediamine has been employed as a reference probe to investigate rapid chlorination rate constants by a stopped-flow spectrophotometric competition kinetics method. The reaction of chlorine and N,N-diethyl-p-phenylenediamine for sensitive square-wave voltammetric detection of chlorine has been studied and used to investigate the role of H2S in cardioprotection induced by ischemic preconditioning in rat heart, in spectrophotometric determination of gold(III) in gold-pharmaceuticals such as sodium aurothimaleate and auranofin and to investigate colonic tissue H2S production using the acetate trapping assay system.

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