21940-36-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21940-36-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,9,4 and 0 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21940-36:
(7*2)+(6*1)+(5*9)+(4*4)+(3*0)+(2*3)+(1*6)=93
93 % 10 = 3
So 21940-36-3 is a valid CAS Registry Number.
InChI:InChI=1/C22H26O11/c1-31-16-5-3-10(6-13(16)25)2-4-12(24)18-14(26)7-11(8-15(18)27)32-22-21(30)20(29)19(28)17(9-23)33-22/h3,5-8,17,19-23,25-30H,2,4,9H2,1H3/t17-,19-,20+,21-,22-/m1/s1