22177-09-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22177-09-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,1,7 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 22177-09:
(7*2)+(6*2)+(5*1)+(4*7)+(3*7)+(2*0)+(1*9)=89
89 % 10 = 9
So 22177-09-9 is a valid CAS Registry Number.