16642-47-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16642-47-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,6,4 and 2 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 16642-47:
(7*1)+(6*6)+(5*6)+(4*4)+(3*2)+(2*4)+(1*7)=110
110 % 10 = 0
So 16642-47-0 is a valid CAS Registry Number.