1,2,3,4,5,1',2',3',4',5'-decaphenyl-1H,1'H-1,1'-oxy-bis-silole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 16541-42-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,5,4 and 1 respectively; the second part has 2 digits, 4 and 2 respectively. Calculate Digit Verification of CAS Registry Number 16541-42: (7*1)+(6*6)+(5*5)+(4*4)+(3*1)+(2*4)+(1*2)=97 97 % 10 = 7 So 16541-42-7 is a valid CAS Registry Number.