71856-70-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 71856-70-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,1,8,5 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 71856-70:
(7*7)+(6*1)+(5*8)+(4*5)+(3*6)+(2*7)+(1*0)=147
147 % 10 = 7
So 71856-70-7 is a valid CAS Registry Number.