1287776-53-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1287776-53-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,8,7,7,7 and 6 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1287776-53:
(9*1)+(8*2)+(7*8)+(6*7)+(5*7)+(4*7)+(3*6)+(2*5)+(1*3)=217
217 % 10 = 7
So 1287776-53-7 is a valid CAS Registry Number.