1272756-56-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1272756-56-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,7,2,7,5 and 6 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1272756-56:
(9*1)+(8*2)+(7*7)+(6*2)+(5*7)+(4*5)+(3*6)+(2*5)+(1*6)=175
175 % 10 = 5
So 1272756-56-5 is a valid CAS Registry Number.