216358-09-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216358-09-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,3,5 and 8 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 216358-09:
(8*2)+(7*1)+(6*6)+(5*3)+(4*5)+(3*8)+(2*0)+(1*9)=127
127 % 10 = 7
So 216358-09-7 is a valid CAS Registry Number.