29970-31-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 29970-31-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,9,7 and 0 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 29970-31:
(7*2)+(6*9)+(5*9)+(4*7)+(3*0)+(2*3)+(1*1)=148
148 % 10 = 8
So 29970-31-8 is a valid CAS Registry Number.