Phenylbutazone impurity B 20 mg (x1) /
https://www.manchesterbeacon.org/shop/rw2-y0000147-phenylbutazone-impurity-b-20-mg-x1-309227
https://www.manchesterbeacon.org/web/image/product.template/309227/image_1920?unique=4fc67c5
This Phenylbutazone is guaranteed a impurity B with the use of 20 and directly supplied to your lab by Gentaur's warehouse.
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