1,1,2,2,3,3,4,4-octaphenyl-tetrasilan-1-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.
The CAS Registry Mumber 18840-79-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,8,4 and 0 respectively; the second part has 2 digits, 7 and 9 respectively. Calculate Digit Verification of CAS Registry Number 18840-79: (7*1)+(6*8)+(5*8)+(4*4)+(3*0)+(2*7)+(1*9)=134 134 % 10 = 4 So 18840-79-4 is a valid CAS Registry Number.
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