USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
USD $1.00-1.00 / Kilogram
our referance specification, for more details, pls contact us for coa,msds and certification:
email:support(at)dideu.com(skype), steven.ye(at)dideu.com telephone:+86-29-88380327
mobile&whatsapp:+8613289823923
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 |
complies |
||
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. |
|||
heavy metals |
≤10 ppm |
<10ppm |
|
water |
≤1.0% |
0.10% |
|
sulphated ash |
≤0.5%, determined on 1.0 g. |
0.01% |
|
related substances |
unspecified impurities: for each impurity |
≤0.10% |
<0.10% |
total impurity |
≤0.5% |
0.18% |
|
purity |
≥99.0% |
99.70% |
|
assay |
99.0%~101.0% (anhydrous substance). |
99.80% |
|
storage |
preserve in well-closed, light-resistant and airtight containers. |
complies |