70983-78-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70983-78-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,9,8 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 70983-78:
(7*7)+(6*0)+(5*9)+(4*8)+(3*3)+(2*7)+(1*8)=157
157 % 10 = 7
So 70983-78-7 is a valid CAS Registry Number.