Specification Sheet
Product Name cis-4-Hydroxy-L-proline,
99%
Product Number 219959
Product Brand ALDRICH
CAS Number 618-27-9
Molecular Weight 131.13
 
TEST SPECIFICATION
APPEARANCE WHITE POWDER
INFRARED SPECTRUM CONFORMS TO STRUCTURE AND STANDARD AS
  ILLUSTRATED ON PAGE 584B OF EDITION I,
  VOLUME 1 OF "THE ALDRICH LIBRARY OF FT-IR
  SPECTRA".
TITRATION 98.5% - 101.5% (WITH HCLO4)
  AND/OR
ELEMENTAL ANALYSIS CARBON 45.1% - 46.5%
  NITROGEN 10.4% - 11.0%
OPTICAL ROTATION -59(+/- 2) DEGREES (C=2%, H2O)
THIN-LAYER CONSISTENT WITH 99% PURITY
SOLUBILITY 5% IN H2O; CLEAR, COLORLESS TO VERY FAINT
  YELLOW SOLUTION
  APPROVED DECEMBER 11, 1996 JSB