5136-25-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 5136-25-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,1,3 and 6 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 5136-25:
(6*5)+(5*1)+(4*3)+(3*6)+(2*2)+(1*5)=74
74 % 10 = 4
So 5136-25-4 is a valid CAS Registry Number.