2-Aethoxy-4-tert.-butyl-5-methyl-phenol, also known as BHT or butylated hydroxytoluene, is a widely used synthetic antioxidant and preservative. It is an organic compound with the chemical formula C15H24O. BHT is a white crystalline solid that is soluble in organic solvents and has a melting point of 69-71°C. This chemical is commonly added to food products, cosmetics, and pharmaceuticals to prevent oxidation and extend shelf life. It is also used as a stabilizer in plastics and rubber, as well as an antioxidant in fuels and lubricants. BHT is known for its effectiveness in protecting against the formation of free radicals, which can cause damage to cells and contribute to aging and various diseases. However, its use has been a subject of debate due to potential health concerns, and it is regulated in many countries.
The CAS Registry Mumber 2505-10-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,5,0 and 5 respectively; the second part has 2 digits, 1 and 0 respectively. Calculate Digit Verification of CAS Registry Number 2505-10: (6*2)+(5*5)+(4*0)+(3*5)+(2*1)+(1*0)=54 54 % 10 = 4 So 2505-10-4 is a valid CAS Registry Number.