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20657-48-1

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20657-48-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20657-48-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,6,5 and 7 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 20657-48:
(7*2)+(6*0)+(5*6)+(4*5)+(3*7)+(2*4)+(1*8)=101
101 % 10 = 1
So 20657-48-1 is a valid CAS Registry Number.

20657-48-1Relevant articles and documents

trans-2-Cyanocycloalkanols: Versatile Synthons for Alicyclic cis- and trans-1,3-Amino Alcohols

Fueloep, Ferenc,Huber, Imre,Bernath, Gabor,Hoenig, Helmut,Seufer-Wasserthal, Peter

, p. 43 - 46 (2007/10/02)

From trans-2-hydroxycyclopentanecarbonitrile (1) and trans-2-hydroxycyclohexanecarbonitrile (2), a number of trans-2-aminomethylcycloalkanols are prepared by reductive alkylation.Inversion of trans-N-acylaminocycloalkanols by treatment with thionyl chlori

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