1383992-71-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1383992-71-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,3,9,9 and 2 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1383992-71:
(9*1)+(8*3)+(7*8)+(6*3)+(5*9)+(4*9)+(3*2)+(2*7)+(1*1)=209
209 % 10 = 9
So 1383992-71-9 is a valid CAS Registry Number.