Specification Sheet
Product Name D-(−)-Ribose,
≥99%
Product Number R7500
Product Brand SIGMA
CAS Number 50-69-1
Molecular Weight 150.13
Storage Temp 2-8°C
 
TEST SPECIFICATION
APPEARANCE WHITE TO OFF-WHITE POWDER
SOLUBILITY CLEAR COLORLESS TO FAINT YELLOW SOLUTION AT 400 MG PLUS 4 ML OF WATER
PURITY BY GAS CHROMATOGRAPHY 99% MINIMUM
HEAVY METALS NOT MORE THAN 5PPM LEAD
LOSS ON DRYING NOT MORE THAN 0.5%
SPECIFIC ROTATION -19.5 TO -21.0 AT C=4 IN WATER AT 20 C
RECOMMENDED RETEST 3 YEARS
DOCUMENT # R7500/09/03/05/6