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391957-05-4

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391957-05-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 391957-05-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,9,1,9,5 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 391957-05:
(8*3)+(7*9)+(6*1)+(5*9)+(4*5)+(3*7)+(2*0)+(1*5)=184
184 % 10 = 4
So 391957-05-4 is a valid CAS Registry Number.

391957-05-4Relevant articles and documents

Crossing the Boundaries between Marine and Muguet: Discovery of Unusual Lily-of-the-Valley Odorants Devoid of Aldehyde Functions

Jordi, Samuel,Kraft, Philip

, (2018/06/04)

Since 6-isopropyl- (11) and 6-isobutyl-2H-benzo[b][1,4]dioxepin-3(4H)-one (12) instead of the expected marine odor had been reported to possess lily-of-the-valley notes, albeit weaker than benchmark odorants, the influence of a cyclopropyl ring instead of

o-Quinone methide based approach to isoflavans: application to the total syntheses of equol, 3′-hydroxyequol and vestitol

Gharpure, Santosh J.,Sathiyanarayanan,Jonnalagadda, Prasad

, p. 2974 - 2978 (2008/09/20)

A concise strategy is developed for the synthesis of isoflavans employing a Diels-Alder reaction between o-quinone methides and aryl-substituted enol ethers followed by reductive cleavage of the acetal group. The method is extended towards the total syntheses of equol, 3′-hydroxyequol and vestitol.

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