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CAS RN: 3566-44-7 | Product Number: M0494

Variamine Blue B [Redox Indicator]

Purity: >98.0%(T)
  • 4-Amino-4'-methoxydiphenylamine Hydrochloride
  • N-(4-Methoxyphenyl)-1,4-phenylenediamine Hydrochloride
  • Variamine Blue B Hydrochloride
12   ≥20 
2   2  

*Stock available in Belgium will be delivered in 1 to 3 days
*Stock available in Japan will be delivered in 1 to 2 weeks (excludes regulated items and dry ice shipments).

Product Number M0494
Purity / Analysis Method >98.0%(T)
Molecular Formula / Molecular Weight C__1__3H__1__4N__2O·HCl = 250.73  
Physical State (20 deg.C) Solid
CAS RN 3566-44-7
Reaxys Registry Number 4162254
PubChem Substance ID 87572539
Colour Index 37255
MDL Number


Appearance Blue to Dark blue powder to crystal
Purity(Argentmetric Titration) min. 98.0 %
Solubility in Water very faint turbidity
Drying loss max. 0.5 %
Sensitiveness Colorimetric Test : Turn Blue purple with 1ppm Iron and turn Colorless to Almost colorless by adding EDTA 2Na
Properties (reference)
Melting Point 255 °C
Solubility in water Soluble
Pictogram Pictogram
Signal Word Warning
Hazard Statements H302 + H312 + H332 : Harmful if swallowed, in contact with skin or if inhaled.
Precautionary Statements P501 : Dispose of contents/ container to an approved waste disposal plant.
P261 : Avoid breathing dust/ fume/ gas/ mist/ vapours/ spray.
P264 : Wash skin thoroughly after handling.
P280 : Wear protective gloves/ protective clothing.
P302 + P352 + P312 : IF ON SKIN: Wash with plenty of water. Call a POISON CENTER/doctor if you feel unwell.
P304 + P340 + P312 : IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor if you feel unwell.
Related Laws:
EC Number 222-652-7
Transport Information:
HS Number 2922290090
PubMed Literature

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