[{"from": "human", "value": "Provide a description of this molecule. [C][N][C][=Branch1][C][=O][C][=C][Branch1][Ring2][S][Ring1][=Branch1][Cl]"}, {"from": "gpt", "value": "The molecule is an isothiazolinone commonly used as a preservative with antibacterial and antifungal properties. It is found within many commercially available cosmetics, lotions, and makeup removers. It is also a known dermatological sensitizer and allergen; some of its side effects include flaky or scaly skin, breakouts, redness or itchiness, and moderate to severe swelling in the eye area. The American Contact Dermatitis Society named Methylchloroisothiazolinone the Contact Allergen of the Year for 2013.  Sensitivity to Methylchloroisothiazolinone may be identified with a clinical patch test."}]