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1247-92-3

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1247-92-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1247-92-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,2,4 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1247-92:
(6*1)+(5*2)+(4*4)+(3*7)+(2*9)+(1*2)=73
73 % 10 = 3
So 1247-92-3 is a valid CAS Registry Number.

1247-92-3Relevant articles and documents

Synthesis of phosphine oxide-carboxylic acid esters bearing 9,10-dihydro-9,10-ethanoanthracene moiety

Okada, Yoshiharu,Okeya, Kazuhiro,Murata, Yoshiyasu,Aoki, Nakahisa,Aoki, Takahiro,Sugitani, Motoko,Yasui, Satomi,Sawada, Yusuke,Ogura, Fumio

, p. 821 - 829 (2003)

A bulky type of phosphine oxide-carboxylic acid bearing 9,10-dihydro-9,10-ethanoanthracene moiety was synthesized by the Diels-Alder reaction of 2-anthryldiphenylphosphine oxide and methyl acrylate, for which the structure was confirmed on the basis of s

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