Carbonimidsaeure-bis-(4-hydroxy-3,5-di-tert.-butyl-phenylester), also known as 4-hydroxy-3,5-di-tert-butyl-benzyl-phosphonic-acid-diester, is a complex organic compound with the chemical formula C22H35O4P. Carbonimidsaeure-bis-(4-hydroxy-3,5-di-tert.-butyl-phenylester) is characterized by its phosphonic acid structure, which is esterified with two 4-hydroxy-3,5-di-tert-butyl-phenyl groups. It is a white crystalline solid and is often used as an antioxidant in various industrial applications, particularly in the stabilization of polymers and plastics. Its chemical structure provides it with the ability to scavenge free radicals, thereby preventing the oxidation and degradation of materials it is added to. Due to its stability and effectiveness, it is a valuable component in the formulation of products that require long-term protection against oxidative stress.
The CAS Registry Mumber 1818-02-6 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,8,1 and 8 respectively; the second part has 2 digits, 0 and 2 respectively. Calculate Digit Verification of CAS Registry Number 1818-02: (6*1)+(5*8)+(4*1)+(3*8)+(2*0)+(1*2)=76 76 % 10 = 6 So 1818-02-6 is a valid CAS Registry Number.