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114669 Sigma-Aldrich

4-(4-Nitrophenylazo)resorcinol

Dye content 90 %

Synonym: Azoviolet, Magneson I

  • CAS Number 74-39-5

  • Linear Formula O2NC6H4N=NC6H3-1,3-(OH)2

  • Molecular Weight 259.22

  •  Beilstein Registry Number 674709

  •  EC Number 200-808-5

  •  MDL number MFCD00007310

  •  PubChem Substance ID 24847188

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Properties

Related Categories Cell Biology, Hematology and Histology, N, Stains & Dyes, A to Z, Stains and Dyes More...
InChI Key   NGPGYVQZGRJHFJ-BUHFOSPRSA-N
composition   Dye content, 90%
mp   195-200 °C (dec.) (lit.)
absorption   λmax 432 nm

Description

Packaging

25, 100 g in glass bottle

Biochem/physiol Actions

4-(4-Nitrophenylazo) resorcinol, also known as azo violet or magneson I, is a red colored powder. It functions as a spot test reagent and forms blue lake on reaction with Mg(OH)2 in alkaline solution. It is mainly used for determining the presence of magnesium in the solution.

4-(4-Nitrophenylazo)resorcinol is a pH indicator.

Safety & Documentation

Safety Information

Personal Protective Equipment 
RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
VH2810000

Documents

Certificate of Analysis

Certificate of Origin


Milli-Q® Water Purification Solutions

Biomedical Applications
Protocols & Articles
Peer-Reviewed Papers
15

References

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