1239757-25-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1239757-25-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,9,7,5 and 7 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1239757-25:
(9*1)+(8*2)+(7*3)+(6*9)+(5*7)+(4*5)+(3*7)+(2*2)+(1*5)=185
185 % 10 = 5
So 1239757-25-5 is a valid CAS Registry Number.