82054-21-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 82054-21-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,0,5 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 82054-21:
(7*8)+(6*2)+(5*0)+(4*5)+(3*4)+(2*2)+(1*1)=105
105 % 10 = 5
So 82054-21-5 is a valid CAS Registry Number.
InChI:InChI=1/C15H21N5/c16-15(17)19-8-3-6-13-14-11(7-9-18-13)10-4-1-2-5-12(10)20-14/h1-2,4-5,13,18,20H,3,6-9H2,(H4,16,17,19)/t13-/m0/s1
82054-21-5Relevant articles and documents
Enantioselective synthesis of (+)-trypargine and (+)-crispine E
Czarnocki, Stefan J.,Wojtasiewicz, Krystyna,Jó?wiak, Adam P.,Maurin, Jan K.,Czarnocki, Zbigniew,Drabowicz, Józef
, p. 3176 - 3182 (2008/09/19)
Asymmetric transfer hydrogenation was used as a key step in the synthesis of two guanidine-derived alkaloids (+)-trypargine and (+)-crispine E. The enantiomeric compositions of key intermediates were established on the basis of 1H NMR spectra w
