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83739-25-7

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83739-25-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83739-25-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,7,3 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 83739-25:
(7*8)+(6*3)+(5*7)+(4*3)+(3*9)+(2*2)+(1*5)=157
157 % 10 = 7
So 83739-25-7 is a valid CAS Registry Number.

83739-25-7Downstream Products

83739-25-7Relevant academic research and scientific papers

APPLICATIONS OF THE TANDEM -WITTIG-OXY-COPE REARRANGEMENT TO SYNTHESIS OF exo-BREVICOMIN AND OXOCRINOL. THE SCOPE AND LIMITATION OF THE SIGMATROPIC SEQUENCES AS A SYNTHETIC METHOD FOR δ,ε-UNSATURATED KETONES

Mikami, Koichi,Nakai, Takeshi

, p. 1349 - 1352 (1982)

The synthetic utility of the title sigmatropic sequence is illustrated in the syntheses of (E)-6-nonen-2-one, a precursor of exo-brevicomin, and oxocrinol.The scope and limitation of this sequence as a synthetic method for δ,ε-unsaturated ketones are also discussed.

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