20809-23-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20809-23-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,8,0 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 20809-23:
(7*2)+(6*0)+(5*8)+(4*0)+(3*9)+(2*2)+(1*3)=88
88 % 10 = 8
So 20809-23-8 is a valid CAS Registry Number.
InChI:InChI=1/C18H28ClNO2/c1-6-7-17(21)16-12-15(19)8-9-18(16)22-11-10-20(13(2)3)14(4)5/h8-9,12-14H,6-7,10-11H2,1-5H3