1923836-20-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1923836-20-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,9,2,3,8,3 and 6 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1923836-20:
(9*1)+(8*9)+(7*2)+(6*3)+(5*8)+(4*3)+(3*6)+(2*2)+(1*0)=187
187 % 10 = 7
So 1923836-20-7 is a valid CAS Registry Number.