1623083-99-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1623083-99-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,3,0,8 and 3 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1623083-99:
(9*1)+(8*6)+(7*2)+(6*3)+(5*0)+(4*8)+(3*3)+(2*9)+(1*9)=157
157 % 10 = 7
So 1623083-99-7 is a valid CAS Registry Number.