1780964-59-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1780964-59-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,7,8,0,9,6 and 4 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1780964-59:
(9*1)+(8*7)+(7*8)+(6*0)+(5*9)+(4*6)+(3*4)+(2*5)+(1*9)=221
221 % 10 = 1
So 1780964-59-1 is a valid CAS Registry Number.