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82978-04-9

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82978-04-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 82978-04-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,2,9,7 and 8 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 82978-04:
(7*8)+(6*2)+(5*9)+(4*7)+(3*8)+(2*0)+(1*4)=169
169 % 10 = 9
So 82978-04-9 is a valid CAS Registry Number.

82978-04-9Relevant articles and documents

Photolytic Conversion of Some Bicycloheptanones into 3-Hydroxy- or 3-Methoxy-2-oxabicyclooctan-2-ones

Newton, Roger F.,Reynolds, Derek P.,Crossland, Noelle M.,Kelly, David R.,Roberts, Stanley M.

, p. 1583 - 1586 (2007/10/02)

The ketones (1) and (7)-(9) gave the corresponding cyclic acetals (3), (4), and (12)-(17), respectively, on photolysis in methanol.Concurrent production of the alkenes (6) and (18)-(20) detracted from the potential synthetic utility of this process.However, photolysis of the ketones (8), (10), and (11) in aqueous tetrahydrofuran or aqueous acetonitrile led to a highly selective ring-expansion process, and consequently high yields of the corresponding γ-lactols (21)-(23).

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