USD $3.00-10.00 / Kilogram
USD $6.00-9.00 / Gram
USD $6.00-9.00 / Gram
USD $1.00-2.00 / Gram
USD $3.00-10.00 / Kilogram
USD $3.00-10.00 / Kilogram
USD $3.00-10.00 / Kilogram
USD $8.20-8.80 / Kilogram
USD $8.20-8.80 / Kilogram
98.0%~101.0%
appearance |
yellow to brown yellow powder |
identification |
1) the infrared absorption spectrum is concordant with that of the reference sample |
|
2)reach the biggest absorption at wave 358nm |
|
3)positive |
related substance |
the total areas of all impurities peak of the sample solution not more than 1.0 times the area of the principal peak in the chromatogram obtained with reference solution( 1.0%) |
heavy metals |
≤ 0.002% |
water |
8.0%~9.5% |
assay |
98.0%~101.0% |