Dextramycine is an optic isomer of chloramphenicol.

134-90-7

C11H12Cl2N2O5

323.13

(+)-Chloramphenicol;Dextramycin;L-threo-Chloramphenicol;Dextromycetin;Dextramycine

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years