21266-90-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 21266-90-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,2,6 and 6 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 21266-90:
(7*2)+(6*1)+(5*2)+(4*6)+(3*6)+(2*9)+(1*0)=90
90 % 10 = 0
So 21266-90-0 is a valid CAS Registry Number.
21266-90-0Relevant articles and documents
One-pot Conversions of Amines into Olefins via Non-isolated Pyridinium Intermediates
Katritzky, Alan R.,Lloyd, Jeremy M.
, p. 2347 - 2352 (2007/10/02)
Secondary alkyl primary amines are converted by the pyrylium salt (1) directly at 20 deg C into olefins via the corresponding secondary carbenium ions.Isomeric olefin mixtures are elucidated and result from carbenium ion rearrangements.