83685-19-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 83685-19-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,6,8 and 5 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 83685-19:
(7*8)+(6*3)+(5*6)+(4*8)+(3*5)+(2*1)+(1*9)=162
162 % 10 = 2
So 83685-19-2 is a valid CAS Registry Number.
InChI:InChI=1/C20H23NO4/c1-21-6-5-12-7-14(22-2)10-17-19(12)16(21)9-13-8-15(23-3)11-18(24-4)20(13)25-17/h7-8,10-11,16H,5-6,9H2,1-4H3/t16-/m0/s1