1620011-25-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1620011-25-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,0,1 and 1 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1620011-25:
(9*1)+(8*6)+(7*2)+(6*0)+(5*0)+(4*1)+(3*1)+(2*2)+(1*5)=87
87 % 10 = 7
So 1620011-25-7 is a valid CAS Registry Number.