USD $5.00-10.00 / Gram
USD $10.00-100.00 / Kilogram
USD $1.00-10.00 / Kilogram
USD $10.00-100.00 / Kilogram
ep
spiramycin
characteristics |
white or slightly yellowish powder ,solubility should meet the requirement |
identification |
a uv test:conforms b tlc test:conforms c a brown color develops |
ph |
8.5-10.5 |
specific optical rotation |
-85°to -80° |
related substances |
impurity a≤2.0% |
|
impurity b≤2.0% |
|
impurity d≤2.0% |
|
impurity e≤2.0% |
|
impurity f≤2.0% |
|
impurity g≤2.0% |
|
impurity h≤2.0% |
|
any unspecified impurity≤1.5% |
|
total impurities≤10.0% |
loss on drying |
≤3.5% |
heavy metals |
≤20ppm |
sulphated ash |
≤0.1% |
butyl acetate |
≤5000ppm |
composition |
spiramycin i≥80.0% |
|
spiramycin ≤5.0% |
|
spiramycin ≤10.0% |
|
total spiramycin i,ii,i≥90% |
assay |
≥4100iu/mg calculated with reference to the anhydrous substances |