1217842-35-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1217842-35-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,7,8,4 and 2 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1217842-35:
(9*1)+(8*2)+(7*1)+(6*7)+(5*8)+(4*4)+(3*2)+(2*3)+(1*5)=147
147 % 10 = 7
So 1217842-35-7 is a valid CAS Registry Number.