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Chemical Name : (2R, 3R)-2,3-dihydroxy butane-1.4-dioic acid
Structural Formula :  Product Pictures: 
Molecular formula : C4H6O6
Molecular weight : 150.1
CAS Number :87-69-4
Description : Colorless or white crystalline. Odorless, acdic taste. Very soluble in water and alcohol, insoluble in chloroform.
Uses : In the medical industry, as medicine intermediate, resolution agent and its derivant, etc. In the food industry, as acidic taste agent of drink, sweetmeats and jam food. In the chemical industry, serve as produce tartrate and ester. Also as shelter agent of metal ion. In the spinning industry, as resist of printing and dyeing , etc.
Packing : In paper board or fibber board drum, or polypropylene bag, lined with complex bags of 25kgs net.
Storage : Kept air tightly in a light-proof, dry and cool place
Specifications : Complies with BP98 & US FCC(IV)
ITEMS |
BP98 |
FCC (IV) |
Clarity ad color solution |
Up to standard |
- |
Specific optical rotation(C=20,) [a]D20 |
+12 ° - +12.8 ° |
+12.0 ° - +13.0 ° |
Assay % ≥ |
99.5-101.0 |
99.7-100.5 |
Loss on drying % ≤ |
0.2 |
0.5 |
Heavy metals %≤ |
0.001 |
0.001 |
Sulphated ash %≤ |
0.1 |
0.05 |
Oxalate |
0.035 |
Up to standard |
Sulphate |
0.015 |
Up to standard |
Chlorides (Cl)% ≤ |
0.01 |
- |
Calcium (Ca)%≤ |
0.02 |
- |
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