117636-42-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117636-42-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,6,3 and 6 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 117636-42:
(8*1)+(7*1)+(6*7)+(5*6)+(4*3)+(3*6)+(2*4)+(1*2)=127
127 % 10 = 7
So 117636-42-7 is a valid CAS Registry Number.