Alfacalcidol impurity B CRS 15 mg (x1) /
https://www.teragenomics.com/shop/rw2-y0002296-alfacalcidol-impurity-b-crs-15-mg-x1-305709
https://www.teragenomics.com/web/image/product.template/305709/image_1920?unique=0e83fa8
This Alfacalcidol is guaranteed a impurity with the use of B (x1) and directly supplied to your lab by Gentaur's warehouse.
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