Cas 342622-13-3,5,6-didehydro-4-hydroxy-3,14β-dimethoxy-17-methylmorphinan-6-carbonitrile

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Check Digit Verification of cas no

The CAS Registry Mumber 342622-13-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,4,2,6,2 and 2 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 342622-13:
(8*3)+(7*4)+(6*2)+(5*6)+(4*2)+(3*2)+(2*1)+(1*3)=113
113 % 10 = 3
So 342622-13-3 is a valid CAS Registry Number.

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342622-13-3Relevant academic research and scientific papers

Mechanistic diversity of the van Leusen reaction applied to 6-ketomorphinans and synthetic potential of the resulting acrylonitrile substructures

Schuetz, Johannes,Windisch, Petra,Kristeva, Elka,Wurst, Klaus,Ongania, Karl-Hans,Horvath, Ulrike E. I.,Schottenberger, Herwig,Laus, Gerhard,Schmidhammer, Helmut

, p. 5323 - 5326 (2005)

Tosylmethyl isocyanide was used to convert 7,8-didehydro-6-ketomorphinans to 6,7-didehydromorphinan-6-carbonitriles with retainment of the 4,5-epoxy ring. However, ring opening occurred in the presence of NaH giving 5,6,7,8-tetradehydromorphinan-6-carboni

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