2-tert-Butoxy-5-(1,1,3,3-tetramethyl-butyl)-phenol, also known as BHT or butylated hydroxytoluene, is a widely used synthetic antioxidant and preservative. It is a colorless to pale yellow crystalline solid with a molecular formula of C15H24O. BHT is commonly added to food products, cosmetics, and pharmaceuticals to prevent oxidation and spoilage, thereby extending their shelf life. It works by donating hydrogen atoms to free radicals, effectively neutralizing them and preventing the oxidation process. Despite its benefits, there has been some debate over its safety, with concerns about potential health risks at high levels of exposure. However, it is generally recognized as safe for use in food and other products when used within established limits.
The CAS Registry Mumber 2555-80-8 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,5 and 5 respectively; the second part has 2 digits, 8 and 0 respectively. Calculate Digit Verification of CAS Registry Number 2555-80: (6*2)+(5*5)+(4*5)+(3*5)+(2*8)+(1*0)=88 88 % 10 = 8 So 2555-80-8 is a valid CAS Registry Number.