20921-50-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 20921-50-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,2 and 1 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 20921-50:
(7*2)+(6*0)+(5*9)+(4*2)+(3*1)+(2*5)+(1*0)=80
80 % 10 = 0
So 20921-50-0 is a valid CAS Registry Number.
InChI:InChI=1/C24H27NO2/c1-4-24(20-11-7-5-8-12-20,21-16-15-18(2)19(3)17-21)27-23(26)25-22-13-9-6-10-14-22/h1,5,7-8,11-12,15-17,22H,6,9-10,13-14H2,2-3H3,(H,25,26)