33856-78-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33856-78-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,8,5 and 6 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 33856-78:
(7*3)+(6*3)+(5*8)+(4*5)+(3*6)+(2*7)+(1*8)=139
139 % 10 = 9
So 33856-78-9 is a valid CAS Registry Number.