1372989-51-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1372989-51-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,7,2,9,8 and 9 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1372989-51:
(9*1)+(8*3)+(7*7)+(6*2)+(5*9)+(4*8)+(3*9)+(2*5)+(1*1)=209
209 % 10 = 9
So 1372989-51-9 is a valid CAS Registry Number.