113956-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 113956-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,9,5 and 6 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 113956-77:
(8*1)+(7*1)+(6*3)+(5*9)+(4*5)+(3*6)+(2*7)+(1*7)=137
137 % 10 = 7
So 113956-77-7 is a valid CAS Registry Number.