1556954-13-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1556954-13-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,5,6,9,5 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1556954-13:
(9*1)+(8*5)+(7*5)+(6*6)+(5*9)+(4*5)+(3*4)+(2*1)+(1*3)=202
202 % 10 = 2
So 1556954-13-2 is a valid CAS Registry Number.