95:5 mole ratio of dimethlsiloxane:diphenylsiloxane
Check Digit Verification of cas no
The CAS Registry Mumber 68951-93-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,8,9,5 and 1 respectively; the second part has 2 digits, 9 and 3 respectively. Calculate Digit Verification of CAS Registry Number 68951-93: (7*6)+(6*8)+(5*9)+(4*5)+(3*1)+(2*9)+(1*3)=179 179 % 10 = 9 So 68951-93-9 is a valid CAS Registry Number.