4-tert.-Butoxy-2,5-dimethyl-phenol, also known as BHT or butylated hydroxytoluene, is a synthetic organic compound widely used as an antioxidant and preservative in various industries. It is a white crystalline solid with a molecular formula of C15H24O. BHT is effective in preventing the oxidation of fats and oils, making it a common additive in food products, cosmetics, and pharmaceuticals. It also has applications in rubber and petroleum products to prevent degradation and extend their shelf life. Despite its benefits, concerns have been raised about its potential health effects, and its use is regulated in different countries.
The CAS Registry Mumber 2460-85-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,4,6 and 0 respectively; the second part has 2 digits, 8 and 5 respectively. Calculate Digit Verification of CAS Registry Number 2460-85: (6*2)+(5*4)+(4*6)+(3*0)+(2*8)+(1*5)=77 77 % 10 = 7 So 2460-85-7 is a valid CAS Registry Number.