204519-64-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 204519-64-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,5,1 and 9 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 204519-64:
(8*2)+(7*0)+(6*4)+(5*5)+(4*1)+(3*9)+(2*6)+(1*4)=112
112 % 10 = 2
So 204519-64-2 is a valid CAS Registry Number.
InChI:InChI=1/C18H20FN5O4/c1-28-22-14-8-23(6-9(14)5-20)17-13(19)4-11-15(25)12(18(26)27)7-24(10-2-3-10)16(11)21-17/h4,7,9-10H,2-3,5-6,8,20H2,1H3,(H,26,27)/b22-14+/t9-/m1/s1