![Phthalic acid European Pharmacopoeia (EP) Reference Standard](/deepweb/assets/sigmaaldrich/product/structures/474/425/1d204d6a-26e8-43c0-9185-de91d0371da4/640/1d204d6a-26e8-43c0-9185-de91d0371da4.png)
Phthalic acid
![Phthalic acid European Pharmacopoeia (EP) Reference Standard](/deepweb/assets/sigmaaldrich/product/structures/474/425/1d204d6a-26e8-43c0-9185-de91d0371da4/640/1d204d6a-26e8-43c0-9185-de91d0371da4.png)
Synonym(s):
Phthalic acid, 1,2-Benzenedicarboxylic acid
Linear Formula:
C6H4-1,2-(CO2H)2
CAS Number:
Molecular Weight:
166.13
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