CERTIFICATE OF QUALITY

Product:

D-Ribose

D-(-)-Ribose

Grade

AJI 92 Grade

Lot:

OF0602A

Code:

172310

CAS-No:

[50-69-1]

Mol. Formula:

C₅H₁₀O₅

Mol. Weight:

150.13

Packing:

25 Kg / Drum

Assay（HPLC）

97.0~102%

98.5％

Loss on drying

≤3.0%

0.41%

Residue on ignition

≤0.2%

0.04%

Specific rotation

-18.0~-22.0°

-19.7°

Permeation of solution

≥95.0％

99.1％

Heavy metals

≤10ppm

<10ppm

Arsenic

≤2ppm

<1ppm

Other saccharide

Not detectable (chromatographically)

Complies

Appearance

White or  slightly  yellow  crystals or crystalline  powder

Complies