872356-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 872356-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,2,3,5 and 6 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 872356-91:
(8*8)+(7*7)+(6*2)+(5*3)+(4*5)+(3*6)+(2*9)+(1*1)=197
197 % 10 = 7
So 872356-91-7 is a valid CAS Registry Number.