202271-82-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 202271-82-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,2,2,7 and 1 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 202271-82:
(8*2)+(7*0)+(6*2)+(5*2)+(4*7)+(3*1)+(2*8)+(1*2)=87
87 % 10 = 7
So 202271-82-7 is a valid CAS Registry Number.