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142927-39-7

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142927-39-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 142927-39-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,2,9,2 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 142927-39:
(8*1)+(7*4)+(6*2)+(5*9)+(4*2)+(3*7)+(2*3)+(1*9)=137
137 % 10 = 7
So 142927-39-7 is a valid CAS Registry Number.

142927-39-7Relevant articles and documents

Synthesis and NMR Studies of Some Steriodal Isoxazoles

Giacopello, Sergio,Deluca, Monica E.,Seldes, Alicia M.

, p. 891 - 897 (2007/10/02)

A short synthesis of 17α-pregna-2,4-dien-isoxazol-17β-ol (1) is described using mild reaction conditions and with a high overall yield.The equilibrium between keto-enolic forms has been studied by 1H NMR methods.Complete assignments of all the resonances in the 1H and 13C NMR spectra of Danazol have been made using a variety of one and two-dimensional correlation methods. 13C NMR spectra of all the intermediate and related model compounds were also assigned. Key words: Anabolic Agents, Isoxazolinic Steroids, 17α-Pregna-2,4-dien-isoxazol-17β-ol, Synthesis, NMR Spectra

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