22947-87-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22947-87-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,9,4 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 22947-87:
(7*2)+(6*2)+(5*9)+(4*4)+(3*7)+(2*8)+(1*7)=131
131 % 10 = 1
So 22947-87-1 is a valid CAS Registry Number.