4,4,4',4'-tetramethyl-4,5,4',5'-tetrahydro-2,2'-(3,3'-dimethoxy-2,2'-butane-1,4-diyl-diphenyl)-bis-oxazole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 64957-73-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,9,5 and 7 respectively; the second part has 2 digits, 7 and 3 respectively. Calculate Digit Verification of CAS Registry Number 64957-73: (7*6)+(6*4)+(5*9)+(4*5)+(3*7)+(2*7)+(1*3)=169 169 % 10 = 9 So 64957-73-9 is a valid CAS Registry Number.