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HomeProduct name listDurazol Brown 4RNS

Durazol Brown 4RNS

  • CAS NO.：6661-42-3
  • Empirical Formula: C34H25N9Na2O9S2
  • Molecular Weight: 813.72674
Durazol Brown 4RNS Structural

What is Durazol Brown 4RNS?

Preparation

3-Aminonaphthalene-1,5-disulfonic acid diazo, and Naphthalen-1-amine coupling, product to diazo, and 2-Amino-4-methylanisole coupling, generation of accidentally nitrogen compounds to diazo, and 4-Nitrobenzene-1,3-diamine coupling.

Properties and Applications

red light brown. Moderate soluble in water and ethanol for brown. The strong sulfuric acid for blue-ray green (+ violet black), diluted for Shallow red time The dye solution to join strong hydrochloric acid with brown precipitation; Add thick sodium hydroxide solution for yellow brown, with brown precipitation.

Standard Acid Resistance Alkali Resistance Light Fastness Soaping Water
Fading Stain Fading Stain
ISO 4 5 4-5 2 2

Safety information for Durazol Brown 4RNS

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