Synthesis chemical Lab is one of the best and leading supplier of chemicals wholesale and retail traders. Synthesis Chemical Lab is a one stop solution for your all kind of Chemicals and Scientific needs. Synthesis Chemical Lab are the supplier of Metanil yellow powder - Synthesis Chemical Lab. Metanil yellow powder is a yellow azo dye that is used as a pH indicator and in histological staining. pH indicator: Changes color from red to yellow between pH 1.2 and 3.2 Histological dye: Used as a counterstain in PAS (periodic acid-Schiff) or iron-hematoxylin stained sections to increase contrast Adulterant: Used to adulterate curcumin in turmeric powder and in other food products like bakery goods, cereals, beverages, candies, and gelatin Metanil yellow is toxic to the liver, brain, and reproductive organs, and is not permitted in the food industry. Animal studies have suggested that metanil yellow is neurotoxic and hepatotoxic. Despite its status, metanil yellow was found in 16.4% of the sampled food products in India. It was used to color bakery goods, cereals, beverages, candies, gelatin, and numerous other commodities. Metanil yellow is a carcinogenic and toxic synthetic dye that is one of the most common adulterants used in turmeric powder. To detect the presence of metanil yellow take a pinch of turmeric powder in a test tube and add a few drops of concentrated hydrochloric acid in it and shake it vigorously. Synthesis Chemical Lab are supplying in all parts of South India, TAMILNADU, KERALA, KARNATAKA, ANDHRA PRADESH, TELUGANA COIMBATORE, POLLACHI, CHENNAI, OOTY, SALEM, MADURAI TRICHY, KARAIKUDI, NAGAPATTINAM.-Synthesis Chemical Lab.