19906-56-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19906-56-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,9,0 and 6 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 19906-56:
(7*1)+(6*9)+(5*9)+(4*0)+(3*6)+(2*5)+(1*6)=140
140 % 10 = 0
So 19906-56-0 is a valid CAS Registry Number.