99356-81-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99356-81-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,3,5 and 6 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 99356-81:
(7*9)+(6*9)+(5*3)+(4*5)+(3*6)+(2*8)+(1*1)=187
187 % 10 = 7
So 99356-81-7 is a valid CAS Registry Number.