Ferrocenecarboxylic acid

Ferrocenecarboxylic acid (CAS 1271-42-7, EC 215-040-6, formula C11H10FeO2) is an organometallic compound also known as carboxyferrocene or ferrocenoic acid. It carries no assigned E-code. The compound combines a ferrocene core with a carboxylic acid functional group, giving it both redox-active and acidic character.

In personal care formulations, carboxyferrocene functions as an antimicrobial agent and skin conditioner, where its iron-centered redox activity is understood to disrupt microbial membrane integrity. Pharmaceutical researchers also employ it as a building block for bioactive conjugates, attaching it to drug candidates to modulate lipophilicity and cellular uptake.

Ferrocenecarboxylic acid is supplied as a dark brown crystalline powder and is subject to REACH registration requirements for EU procurement. No Ph.Eur. or FCC monograph currently applies. Buyers should request a full safety data sheet and certificate of analysis confirming purity grade prior to ordering. HS code 29319090 applies for import classification.