7605-04-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7605-04-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,6,0 and 5 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 7605-04:
(6*7)+(5*6)+(4*0)+(3*5)+(2*0)+(1*4)=91
91 % 10 = 1
So 7605-04-1 is a valid CAS Registry Number.