130506-55-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 130506-55-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,0,5,0 and 6 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 130506-55:
(8*1)+(7*3)+(6*0)+(5*5)+(4*0)+(3*6)+(2*5)+(1*5)=87
87 % 10 = 7
So 130506-55-7 is a valid CAS Registry Number.