[{"from": "human", "value": "What can you tell me about this molecule? [C][Branch1][N][C][C][Branch1][Ring1][C][Br][Branch1][Ring1][C][#N][Br][C][#N]"}, {"from": "gpt", "value": "The molecule is a widely used preservative that can be found in many personal hygiene and industrial products. It is also a known allergen and dermatological irritant that has been banned in many EU countries due to increasing rates of contact allergy. In 2005, MDBGN was named in the top 15 most frequently positive allergens identified in patch tests by the North American Contact Dermatitis Group (NACDG).  Sensitivity to Bromothalonil may be identified with a clinical patch test."}]