Phenylglyoxylic Acid-13C8 1mg
https://www.manchesterbeacon.org/shop/rw2-trc-p327504-1mg-phenylglyoxylic-acid-13c8-1mg-281043
https://www.manchesterbeacon.org/web/image/product.template/281043/image_1920?unique=3df9016
This Phenylglyoxylic is guaranteed with the use of Acid-13C8 and directly supplied F2 to your lab by Gentaur's warehouse.
Terms and Conditions
30-day money-back guarantee
Shipping: 2-3 Business Days