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40487-08-9

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40487-08-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40487-08-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,4,8 and 7 respectively; the second part has 2 digits, 0 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 40487-08:
(7*4)+(6*0)+(5*4)+(4*8)+(3*7)+(2*0)+(1*8)=109
109 % 10 = 9
So 40487-08-9 is a valid CAS Registry Number.

40487-08-9Downstream Products

40487-08-9Relevant articles and documents

Compounds with Bridgehead Nitrogen. 62 - NMR Spectra and Stereochemistry of Perhydropyridothiazepines and Related Systems

Crabb, Trevor A.,Fallah, Asadollah

, p. 426 - 430 (1990)

Perhydropyridothiazepine adopts (CDCl3 solution, 25 deg C) an equilibrium containing > 98percent trans-fused conformer, in contrast to perhydropyridooxazepine, which adopts a ca. 74percent trans fused 26percent O-inside-cis-fused conformational equilibrium.The cis-(H-5a, H-8)-8-ethyl-substituted derivatives of both systems show increased preference for the S/O inside cis conformations.The related 2-tert-butylperhydropyridodiazepine adopts predominantly the trans-fused conformation.

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