Test Items | Specification | Results |
Characters: | White or slightly yellow powder or colourless or slightly yellow crystals | White powder |
Freely soluble in alcohoLsolublc in methanol,slightly soluble in water | Corresponds | |
Identification: | Corresponds | Corresponds |
Water: | ≤6.5% | 4.97% |
Sulphated ash: | ≤0.2% | 0.03% |
Thiocyanate: | ≤0.3% | 0.02% |
Related substances: | ||
Impurity A: | ≤2.0% | 0.32% |
Impurity B: | ≤2.0% | 0.97% |
Impurity C: | ≤3.0% | 0.80% |
Impurity D: | ≤1.0% | 0.33% |
Impurity E: | ≤1.0% | 0.01% |
Impurity F: | ≤1.0% | ND |
Impurity H: | ≤1.0% | 0.03% |
Impurity L: | ≤0.4% | 0.01% |
Any impurity: | ≤0.4% | ND |
Total: | ≤7.0% | 2.47% |
Assay: | 93.0%~102.0% | 99.6% |
Erythromycin B: | ≤5.0% | 0.48% |
Eiythromycin C: | ≤5.0% | 0.09% |
Residue solvents: | ||
Acetone: | ≤5000ppm | 287 ppm |
Butyl acetate: | ≤5000ppm | <28 ppm |
Iso-octyl alcohol: | ≤2500ppm | <10 ppm |
mode of transportation | ||
By Air | By Express | By Sea |
suitable for >50 | suitable for sampple order or <50 | suitable for >300 |
Fast:3-7 days | Fast:3-10 days | Fast: 7-45 days |
lower than the express cost | high shipping cost | lowest cost |