Sudan red 7B (fat red bluish, solvent red 19, fat red 7B), Sigma-Aldrich®

Sudan red 7B (fat red bluish, solvent red 19, fat red 7B), Sigma-Aldrich®

:6368-72-5

:C₂₄H₂₁N₅

:MFCD00003904

:379.4570 g/mol

:130 °C (dec., lit.)

:M-Clarity™ quality level = MQ200

:Ambient

:228-862-5

Appearance (color):
Red to very dark red and purple to very dark purple and brown to very dark brown and very dark red-brown
Appearance (form):
Powder
Thin layer chromatogr.:
Consistent with listing
Solubility (color):
Red to very dark red
Solubility (turbidity):
Clear to turbid
Solubility (method):
10mg/ml (1%), acetone
Carbon content:
72 - 77 %
Nitrogen content:
17 - 19 %
Infrared spectrum:
Conforms to structure
Wavelength (1) (uv):
528 - 538 nm
Molar absorbancy index (1):
≥ 24660
Wavelength (2) (uv):
367 - 377 nm
Molar absorbancy index (2):
≥ 14230
Solvent (uv):
Toluene
Recommended retest period:
48 months