Triclocarban TCC CAS: 101-20-2 Effective Anti-Bacterial Laundry Material

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Triclocarban (sometimes abbreviated as TCC) is an antibacterial chemical once common in, but now phased out of, personal care products like soaps and lotions. It was originally developed for the medical field. ^[2] Although the mode of action is unknown, TCC can be effective in fighting infections by targeting the growth of bacteria such as  Staphylococcus aureus. ^[3] Additional research seeks to understand its potential for causing antibacterial resistance and its effects on organismal and environmental health.

Triclocarban has been used as an antimicrobial and antifungal compound since the 1960s. ^[5] It was commonly found in personal care products as an antimicrobial in soaps, lotions, deodorants, toothpaste, and plastic. ^[6] As of 2005 about 80% of all antimicrobial bar soap sold in the United States contained triclocarban. ^[5] In 2011 United States consumers were spending nearly 1 billion dollars annually on products containing triclocarban and triclosan. ^[7]

In December 2013, the Food and Drug Administration (FDA) required all companies to prove within the next year, that triclocarban is not harmful to consumers. Companies like Johnson & Johnson, Procter & Gamble, Colgate-Palmolive, and Avon began phasing out antibacterial ingredients due to health concerns. ^[8]

By 2016 usage of triclocarban in soaps had declined to 40%, and that September the FDA banned triclocarban, triclosan and 17 other common antibacterial chemicals by September 2017, for their failure to be proven safe, or more effective than plain soap and water.

Triclocarban, 3-(4-chlorophenyl)-1-(3,4-dichlorophenyl)urea, is a white powder that is insoluble in water. While triclocarban has two chlorinated phenyl rings, it is structurally similar to carbanilide compounds often found in pesticides (such as diuron) and some drugs. Chlorination of ring structures is often associated with hydrophobicity, persistence in the environment, and bioaccumulation in fatty tissues of living organisms. For this reason, chlorine is also a common component of persistent organic pollutants. ^[10] Triclocarban is incompatible with strong oxidizing reagents and strong bases, reaction with which could result in safety concerns such as explosion, toxicity, gas, and heat.