2,2'-Bis-hydroxymethyl-p-quaterphenyl, also known as bisphenol S, is an organic compound with the chemical formula C20H18O2. It is a white crystalline solid that is soluble in organic solvents and has a molecular weight of 290.35 g/mol. 2,2'-Bis-hydroxymethyl-p-quaterphenyl is a derivative of bisphenol A, with two hydroxymethyl groups attached to the para-positions of the quaterphenyl backbone. Bisphenol S is primarily used as a monomer in the production of various polymers, including epoxy resins and polycarbonates, due to its ability to form strong, heat-resistant materials. It is also used in the manufacturing of flame retardants, adhesives, and coatings. However, concerns have been raised about its potential endocrine-disrupting properties and environmental impact, leading to restrictions on its use in some applications.
The CAS Registry Mumber 5689-66-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,6,8 and 9 respectively; the second part has 2 digits, 6 and 6 respectively. Calculate Digit Verification of CAS Registry Number 5689-66: (6*5)+(5*6)+(4*8)+(3*9)+(2*6)+(1*6)=137 137 % 10 = 7 So 5689-66-7 is a valid CAS Registry Number.