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20646-36-0

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20646-36-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20646-36-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,6,4 and 6 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 20646-36:
(7*2)+(6*0)+(5*6)+(4*4)+(3*6)+(2*3)+(1*6)=90
90 % 10 = 0
So 20646-36-0 is a valid CAS Registry Number.

20646-36-0Relevant articles and documents

Synthetic Studies toward Verrucarol. 1. Synthesis of the AB Ring System

Kraus, George A.,Frazier, Kevin

, p. 4820 - 4825 (1980)

A synthetic route to the AB ring system of verrucarol is described.After two routes employing intramolecular cyclization failed, the Diels-Alder reaction of methyl coumalate and isoprene afforded bicyclic lactone 13.Transformation of 13 into hydroxy lacto

A HYBRID BIRCH-CLAISEN METHODOLOGY FOR ARYLATION AT ALLYLIC TERMINI: SYNTHESIS OF (+/-)-HERBERTENE

Chandrasekaran, S.,Turner, John V.

, p. 3799 - 3802 (2007/10/02)

A hybrid Birch-Claisen methodology has been developed for the regio- and stereo-controlled arylation of allyl groups, and applied to a synthesis of (+/-)-herbertene.

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