198273-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198273-90-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,2,7 and 3 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 198273-90:
(8*1)+(7*9)+(6*8)+(5*2)+(4*7)+(3*3)+(2*9)+(1*0)=184
184 % 10 = 4
So 198273-90-4 is a valid CAS Registry Number.
InChI:InChI=1/C18H21NO4/c1-19-5-4-18-11-2-3-13(21)17(18)23-16-14(18)9(7-12(11)19)6-10(8-20)15(16)22/h2-3,6,11-13,17,20-22H,4-5,7-8H2,1H3/t11-,12+,13-,17-,18-/m0/s1