107784-16-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 107784-16-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,7,7,8 and 4 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 107784-16:
(8*1)+(7*0)+(6*7)+(5*7)+(4*8)+(3*4)+(2*1)+(1*6)=137
137 % 10 = 7
So 107784-16-7 is a valid CAS Registry Number.