Phthalic-13C6 Anhydride 50mg
https://www.manchesterbeacon.org/shop/rw2-trc-p384489-50mg-phthalic-13c6-anhydride-50mg-281423
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This Phthalic-13C6 is guaranteed a Anhydride with the use of 50mg and directly supplied to your lab by Gentaur's warehouse.
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