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2,5-Dimethyl-2-(2-acetoxy-4-methyl-5-bromophenyl)cyclopentanone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

74552-41-3

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74552-41-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 74552-41-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,4,5,5 and 2 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 74552-41:
(7*7)+(6*4)+(5*5)+(4*5)+(3*2)+(2*4)+(1*1)=133
133 % 10 = 3
So 74552-41-3 is a valid CAS Registry Number.

74552-41-3Relevant academic research and scientific papers

Preparation and Rearrangement of Trichothecane-Like Compounds. Synthesis of Aplysin and Filiformin

Goldsmith, David J.,John, Thottathil K.,Kwong, Cecil D.,Painter, George R.

, p. 3989 - 3993 (1980)

The preparation of three trichothecane-like compounds, olefin 9 and epoxides 10 and 23, is reported.Subjection of 9 to conditions of acid-catalyzed rearrangement followed by hydrogenation leads to (+/-)-aplysin.The anti epoxide 10 also undergoes rearrangement but with migration of the aryl group rather than the pyranyl oxygen to give 26.Syn epoxide 23 does not undergo skeletal rearrangement.Hydrogenation of olefin 9 affords (+/-)-filiformin.

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