1820706-89-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1820706-89-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,8,2,0,7,0 and 6 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1820706-89:
(9*1)+(8*8)+(7*2)+(6*0)+(5*7)+(4*0)+(3*6)+(2*8)+(1*9)=165
165 % 10 = 5
So 1820706-89-5 is a valid CAS Registry Number.