1242156-65-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1242156-65-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,2,1,5 and 6 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1242156-65:
(9*1)+(8*2)+(7*4)+(6*2)+(5*1)+(4*5)+(3*6)+(2*6)+(1*5)=125
125 % 10 = 5
So 1242156-65-5 is a valid CAS Registry Number.