USD $10.00-100.00 / Kilogram
USD $10.00-100.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $10.00-100.00 / Kilogram
USD $11,000.00-12,000.00 / Metric Ton
item | standard | test results | |
identification |
a.h-nmr:comply with the structure |
complies |
|
b.lc-ms:comply with the structure |
complies |
||
c.the ir spectrum of sample should be identical with that of reference standard; |
complies |
||
d.hplc-esi-ms the retention time of the major peak in the chromatogram of the assay preparation corresponds to that in the chromatogram of the standard preparation, as obtained in the assay. |
complies |
||
crystallinity |
meets the requirements. |
complies |
|
loss on drying |
≤2.0% |
0.19% |
|
heavy metals |
≤10 ppm |
<10ppm |
|
water |
≤1.0% |
0.1% |
|
sulphated ash |
≤0.5%, determined on 1.0 g. |
0.009% |
|
related substances |
unspecified impurities: for each impurity |
≤0.10% |
<0.10% |
total impurity |
≤0.5% |
0.18% |
|
purity |
≥99.0% |
99.7% |
|
assay |
99.0%~101.0% (anhydrous substance). |
99.8% |
|
microbiological analysis |
|||
total plate count |
≤1000cfu/g |
complies |
|
yeast and moulds |
≤100cfu/g |
complies |
|
e. coli. |
absent |
negative |
|
salmonella |
absent |
negative |
|
s.aureus |
absent |
negative |
|
storage |
preserve in well-closed, light-resistant and airtight containers. |
complies |