2,6-di(t-butyl)-4-(3'-methoxyphenyl)phenol, also known as BHT or butylated hydroxytoluene, is a widely used synthetic antioxidant and preservative. It is an organic compound characterized by a phenol molecule with two t-butyl groups at the 2 and 6 positions and a methoxyphenyl group at the 4 position. BHT is effective in preventing the oxidation of fats and oils, making it a common additive in food products, cosmetics, and pharmaceuticals to extend their shelf life. It is also used as an intermediate in the synthesis of other chemicals and as a stabilizer in various industrial applications. Despite its benefits, there has been ongoing debate about its safety, with some studies suggesting potential health risks, while others support its use within regulated limits.
The CAS Registry Mumber 6257-21-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,5 and 7 respectively; the second part has 2 digits, 2 and 1 respectively. Calculate Digit Verification of CAS Registry Number 6257-21: (6*6)+(5*2)+(4*5)+(3*7)+(2*2)+(1*1)=92 92 % 10 = 2 So 6257-21-2 is a valid CAS Registry Number.