Specification Sheet
Product Name Rhein,
technical grade
Product Number 275611
Product Brand ALDRICH
CAS Number 478-43-3
Molecular Weight 284.22
 
TEST SPECIFICATION
APPEARANCE (COLOR) Light Yellow to Dark Yellow to Dark Orange
APPEARANCE (FORM) Powder or Chunks
PURITY (HPLC AREA %) ≥ 89.0 %
CARBON CONTENT 56.4 - 71.2 %
INFRARED SPECTRUM CONFORMS TO STRUCTURE
PROTON NMR SPECTRUM CONFORMS TO STRUCTURE
WAVELENGTH (1) (UV) 432 - 438 nm
MOLAR ABSORBANCY INDEX (1) ≥ 9500
WAVELENGTH (2) (UV) 255 - 261 nm
MOLAR ABSORBANCY INDEX (2) ≥ 17000
WAVELENGTH (3) (UV) 227 - 233 nm
MOLAR ABSORBANCY INDEX (3) ≥ 30000
UV METHOD C=0.01 G/L IN METHANOL