Benzyl viologen dichloride 97% (by HPLC), Sigma-Aldrich®

Supplier: Merck
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Synonyms: 1,1'-Dibenzyl-[4,4'-bipyridine]-1,1'-diium chloride, 1,1'-Dibenzyl-4,4'-bipyridinium dichloride

271845-250MG 271845-1G 271845-5G
SIAL271845-250MGEA 37.5 EUR
SIAL271845-250MG SIAL271845-1G SIAL271845-5G
Benzyl viologen dichloride 97% (by HPLC), Sigma-Aldrich®
Benzyl viologen dichloride

Benzyl viologen dichloride (BVD) is an electrochromic indicator, which contains two chlorine atoms and an organic constituent attached with two nitrogen cations. In a redox reaction, BVD can be reduced in three states with different colors.

Formula: C₂₄H₂₂Cl₂N₂
MW: 409.35 g/mol
Melting Pt: 260 °C (dec.) (lit.)
MDL Number: MFCD00011991
CAS Number: 1102-19-8

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Specification Test Results

Appearance (Colour) White to Off-White
Appearance (Form) (Powder, Crystals, Crystalline Powder and/or Chunks) Conforms to Requirements
Infrared spectrum Conforms to Structure
Proton NMR spectrum Conforms to Structure
Titration by AgNO₃ 96.5 - 103.5 %
Purity (HPLC) ≥96.5%
Solubility (Turbidity), c = 50 mg/ml, H₂O Clear to Very Slightly Hazy
Solubility (Color) Colorless to Yellow

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