![4-Aminobenzoic acid European Pharmacopoeia (EP) Reference Standard](/deepweb/assets/sigmaaldrich/product/structures/232/752/e01ad97f-9cf2-45db-b596-c49e823d204d/640/e01ad97f-9cf2-45db-b596-c49e823d204d.png)
4-Aminobenzoic acid
![4-Aminobenzoic acid European Pharmacopoeia (EP) Reference Standard](/deepweb/assets/sigmaaldrich/product/structures/232/752/e01ad97f-9cf2-45db-b596-c49e823d204d/640/e01ad97f-9cf2-45db-b596-c49e823d204d.png)
Synonym(s):
PABA, Vitamin Bx, Vitamin H1, 4-Aminobenzoic acid
Linear Formula:
H2NC6H4CO2H
CAS Number:
Molecular Weight:
137.14
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