70905-55-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 70905-55-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,0,9,0 and 5 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 70905-55:
(7*7)+(6*0)+(5*9)+(4*0)+(3*5)+(2*5)+(1*5)=124
124 % 10 = 4
So 70905-55-4 is a valid CAS Registry Number.