Phthalic Anhydride (May Contain Up To 15% Of Phthalic Acid) 50g
https://www.manchesterbeacon.org/shop/rw2-trc-p384473-50g-phthalic-anhydride-may-contain-up-to-15-of-phthalic-acid-50g-281411
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This Phthalic is guaranteed a Anhydride with the use of (May Contain and directly supplied to your lab by Gentaur's warehouse.
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