4,4,5,5,4',4',5',5'-octamethyl-2,2'-tetraphenylcyclopentadienylidenemethanediyl-bis-[1,3,2]dioxaborolane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 52221-82-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,2,2 and 1 respectively; the second part has 2 digits, 8 and 2 respectively. Calculate Digit Verification of CAS Registry Number 52221-82: (7*5)+(6*2)+(5*2)+(4*2)+(3*1)+(2*8)+(1*2)=86 86 % 10 = 6 So 52221-82-6 is a valid CAS Registry Number.