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Riboflavine (vitamin B2)
 :  TCI
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Riboflavine (vitamin B2)
 :  TCI
 

 

  • Appearance:
    White to Yellow to Orange powder to crystal
  • Specific rotation [a]20/D:
    -128.0 to -142.0 deg (C=0.5, JP Method)
  • Absorbance (E1%1cm):
    min. 800 (pH 7.0, 264.0 to 280.0 nm)
  • abs-ratio (a/b):
    0.32 to 0.33 (E374/E267)
  • abs-ratio (2a/2b):
    0.36 to 0.38 (E445/E267)

 

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Ethyl methyl ketone for analysis EMSURE® ACS,Reag. Ph Eur 1 * 4 L

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Indole for synthesis, Sigma-Aldrich®

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2,2,4-Trimethylpentane, extra dry over Molecular Sieve 99.5%, AcroSeal®

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Methanol, extra dry 99.9%, AcroSeal®

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Hydrochloric acid ≥36.5% ≥99.999% (metals basis)

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Tetrahydrofuran 99.8% unstabilised for HPLC

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Benzylamine ≥99.0%, LiChropur™ for GC derivatisation, Supelco®

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