1293923-09-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1293923-09-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,3,9,2 and 3 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1293923-09:
(9*1)+(8*2)+(7*9)+(6*3)+(5*9)+(4*2)+(3*3)+(2*0)+(1*9)=177
177 % 10 = 7
So 1293923-09-7 is a valid CAS Registry Number.