207384-91-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 207384-91-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,3,8 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 207384-91:
(8*2)+(7*0)+(6*7)+(5*3)+(4*8)+(3*4)+(2*9)+(1*1)=136
136 % 10 = 6
So 207384-91-6 is a valid CAS Registry Number.