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31191-93-2

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31191-93-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 31191-93-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,1,1,9 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 31191-93:
(7*3)+(6*1)+(5*1)+(4*9)+(3*1)+(2*9)+(1*3)=92
92 % 10 = 2
So 31191-93-2 is a valid CAS Registry Number.

31191-93-2Downstream Products

31191-93-2Relevant articles and documents

New preparation methods for α-damascone, γ-damascone, and β-damascenone using pyronenes

Boulin, Bertrand,Taran, Martine,Miguel, Bernadette Arreguy-San,Delmond, Bernard

, p. 2579 - 2591 (2008/02/10)

γ- and δ-Pyronenes are terpenic synthons easily available from myrcene. They are used as intermediates in the synthesis of α-damascone, γ-damascones, and β-damascenone. Copyright Taylor & Francis Group, LLC.

β-Cleavage of Bis(homoallylic) Potassium Alkoxides. Synthesis of γ-Damascone

Snowden, Roger L.,Linder, Simon M.

, p. 1587 - 1597 (2007/10/02)

Starting from the γ-lactone cis-1, two new syntheses of γ-damascone ((E)-4) are described.In both syntheses, the key step involves the β-cleavage of a bis(homoallylic)potassium alkoxide, viz. the transformation of 3a to 20 and (E/Z)-4, and the conversion

Utilisation du N,N-dimethylaminol-acetonitrile pour la synthese regioselective de diallylcetones masquees. Application a la synthese de la γ-damascone

Amrollah-Madjdabadi, Ali,Stella, Lucien

, p. 350 - 354 (2007/10/02)

A general synthetic approach to diallyl-ketones protected as α-amino-nitriles is reported.Starting from dimethylamino-acetonitrile, the sequential dialkylation with various allylic halides is conveniently performed at room temperature by using potassium c

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