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85319-23-9

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85319-23-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 85319-23-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,5,3,1 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 85319-23:
(7*8)+(6*5)+(5*3)+(4*1)+(3*9)+(2*2)+(1*3)=139
139 % 10 = 9
So 85319-23-9 is a valid CAS Registry Number.

85319-23-9Relevant articles and documents

Enones with Strained Double Bonds. 8. The Bicyclooctane Systems

House, Herbert O.,Haack, John L.,McDaniel, William C.,VanDerveer, Don

, p. 1643 - 1654 (2007/10/02)

The bicyclic enones bicyclooct-1-en-3-one (4) and 1-methylbicyclooct-5(6)-en-7-one (5) have been generated from various precursors and trapped by the addition of nucleophiles such as MeOH, PhSeH, or H2O.The bridgehead enone 5 has also been trapped as its cycloadduct 31 with furan.Pyrolysis of this cycloadduct 31 reformed the bridgehead enone 5 that was trapped as the cycloadduct 32.Related bridgehead enones 35 and 47 have also been generated as intermediates leading to products with bridgehead methoxy substituents.

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