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113603-28-4

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113603-28-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 113603-28-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,3,6,0 and 3 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 113603-28:
(8*1)+(7*1)+(6*3)+(5*6)+(4*0)+(3*3)+(2*2)+(1*8)=84
84 % 10 = 4
So 113603-28-4 is a valid CAS Registry Number.

113603-28-4Relevant articles and documents

TOTAL SYNTHESIS OF (-)-PERIPLANONE-B, NATURAL MAJOR SEX-EXCITANT PHEROMONE OF THE AMERICAN COCKROACH, PERIPLANETA AMERICANA

Kitahara, Takeshi,Mori, Masataka,Mori, Kenji

, p. 2689 - 2700 (2007/10/02)

The total synthesis of (-)-periplanone-B 1, the major sex excitant and attractant pheromone of the American cockroach was accomplished starting from (+)-dihydrolimonene 2.Intramolecular alkylation of the substituted α-phenylthioacrylate 10 gave rise to the (E)-cyclodecene 11.Second key reaction was the reductive elimination of vicinal phenylthiobenzoate 14 to provide the cojugated diene 15.Overall yield of 1 through 28 steps was 0.5 percent.

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