28044-40-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28044-40-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,0,4 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 28044-40:
(7*2)+(6*8)+(5*0)+(4*4)+(3*4)+(2*4)+(1*0)=98
98 % 10 = 8
So 28044-40-8 is a valid CAS Registry Number.
InChI:InChI=1/C21H31N3O5.C4H4O4/c1-15(2)22-19(25)14-23-8-10-24(11-9-23)20(26)7-6-16-12-17(27-3)21(29-5)18(13-16)28-4;5-3(6)1-2-4(7)8/h6-7,12-13,15H,8-11,14H2,1-5H3,(H,22,25);1-2H,(H,5,6)(H,7,8)/b7-6+;2-1-