268216-83-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 268216-83-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,8,2,1 and 6 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 268216-83:
(8*2)+(7*6)+(6*8)+(5*2)+(4*1)+(3*6)+(2*8)+(1*3)=157
157 % 10 = 7
So 268216-83-7 is a valid CAS Registry Number.