157686-38-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157686-38-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,6,8 and 6 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 157686-38:
(8*1)+(7*5)+(6*7)+(5*6)+(4*8)+(3*6)+(2*3)+(1*8)=179
179 % 10 = 9
So 157686-38-9 is a valid CAS Registry Number.