1807020-38-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1807020-38-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,8,0,7,0,2 and 0 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1807020-38:
(9*1)+(8*8)+(7*0)+(6*7)+(5*0)+(4*2)+(3*0)+(2*3)+(1*8)=137
137 % 10 = 7
So 1807020-38-7 is a valid CAS Registry Number.