1807100-39-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1807100-39-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,8,0,7,1,0 and 0 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1807100-39:
(9*1)+(8*8)+(7*0)+(6*7)+(5*1)+(4*0)+(3*0)+(2*3)+(1*9)=135
135 % 10 = 5
So 1807100-39-5 is a valid CAS Registry Number.