20071-84-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20071-84-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,0,7 and 1 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 20071-84:
(7*2)+(6*0)+(5*0)+(4*7)+(3*1)+(2*8)+(1*4)=65
65 % 10 = 5
So 20071-84-5 is a valid CAS Registry Number.
InChI:InChI=1/C20H25NO.C4H4O4/c1-2-21-15-9-14-18(22)20(21)19(16-10-5-3-6-11-16)17-12-7-4-8-13-17;5-3(6)1-2-4(7)8/h3-8,10-13,18-20,22H,2,9,14-15H2,1H3;1-2H,(H,5,6)(H,7,8)/b;2-1-