Complaint
| 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 |
