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1971-83-1

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1971-83-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1971-83-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,9,7 and 1 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1971-83:
(6*1)+(5*9)+(4*7)+(3*1)+(2*8)+(1*3)=101
101 % 10 = 1
So 1971-83-1 is a valid CAS Registry Number.

1971-83-1Relevant articles and documents

INTRAMOLECULAR RADICAL COUPLING OF A PHENOLIC ENOLATE: OXIDATIVE FRAGMENTATION OF THE SPIRODIKETONE INTERMEDIATE

Leboff, A.,Carbonelle, A.-C.,Alazard, J.-P.,Thal, C.,Kende, A. S.

, p. 4163 - 4164 (2007/10/02)

Ferricyanide oxidation of the dianion of the phenolic β-diketone 6b in basic conditions effects intramolecular radical coupling to form the spirocyclic diketone 7 which leads to the hydroxy tetralone 8 via an oxidative fragmentation process.

TOTALLY SYNTHETIC -13-ALKYL-3-HYDROXY AND

SMITH,HUGHES,DOUGLAS,HARTLEY,MCLOUGHLIN,SIDDALL,WENDT,BUZBY Jr.,HERBST,LEDIG,MCMENAMIN,PATTISON,SUIDA,TOKOLICS,EDGREN,JANSEN,GADSBY,WATSON,PHILLIPS

, p. 394 - 396 (2007/10/12)

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