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152427-73-1

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152427-73-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 152427-73-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,2,4,2 and 7 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 152427-73:
(8*1)+(7*5)+(6*2)+(5*4)+(4*2)+(3*7)+(2*7)+(1*3)=121
121 % 10 = 1
So 152427-73-1 is a valid CAS Registry Number.

152427-73-1Relevant articles and documents

Preparation of 6,14-Ethenomorphinane Derivatives

Marton, Janos,Szabo, Zoltan,Hosztafi, Sandor

, p. 915 - 920 (2007/10/02)

Buprenorphine (5j) and diprenorphine (5k) were synthesized from N-formyl-northebaine (1c) and N-benzyl-northebaine (1d) via new intermediates.N-cyclopropylmethyl-dihydronorthevinone 3d is a suitable compund for the synthesis of both 5j and 5k.We carried out detailed (1)H- and (13)C-NMR analysis of the new compounds. Key words: Buprenorphine; diprenorphine; rotamers, N-CHO; morphinane derivatives; alkaloids.

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