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543740-00-7

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543740-00-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 543740-00-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,4,3,7,4 and 0 respectively; the second part has 2 digits, 0 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 543740-00:
(8*5)+(7*4)+(6*3)+(5*7)+(4*4)+(3*0)+(2*0)+(1*0)=137
137 % 10 = 7
So 543740-00-7 is a valid CAS Registry Number.

543740-00-7Upstream product

543740-00-7Relevant academic research and scientific papers

SESQUITERPENOIDS FROM THE LIVERWORT BAZZANIA FAURIANA

Toyota, Masao,Asakawa, Yoshinori

, p. 2155 - 2160 (1988)

Bazzania fauriana; Jungermannalies; Hepaticae; sesqiuterpenoids; bazzanane; drimane; valencane; eudesmane; cuparane; bazzanenyl caffeate; drimenyl caffeate; 7α-hydroxyvalenc-1(10)-ene; 6β-hydroxyeudesm-3-ene; chemosystematics.Four new sesquiterpenoids, bazzanenyl caffeate, drimenyl caffeate, 6β-hydroxyeudesm-3-ene and 7α-valenc-1(10)-ene have been isolated from the liverwort Bazzania fauriana and their structures determined by chemical transformation and extensive NMR spectral experiments.The present species belongs to the new chemotype of Bazzania species.

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