1620583-34-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1620583-34-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,5,8 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1620583-34:
(9*1)+(8*6)+(7*2)+(6*0)+(5*5)+(4*8)+(3*3)+(2*3)+(1*4)=147
147 % 10 = 7
So 1620583-34-7 is a valid CAS Registry Number.