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931398-67-3

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931398-67-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 931398-67-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,1,3,9 and 8 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 931398-67:
(8*9)+(7*3)+(6*1)+(5*3)+(4*9)+(3*8)+(2*6)+(1*7)=193
193 % 10 = 3
So 931398-67-3 is a valid CAS Registry Number.

931398-67-3Relevant articles and documents

Conjugated addition of bis(oxazolinyl)zinc to substituted 2-nitrovinyl benzenes: an alternative synthesis of (±)-Rolipram

Oliveira, Alfredo R.M.,Villar, José A.F.P.,Simonelli, Fabio,Gariani, Rogério A.,Wosch, Celso L.,Zarbin, Paulo H.G.

, p. 1507 - 1509 (2007)

In this letter we present a new 2,4,4-trimethyl-2-oxazoline anion-zinc derivative that has a remarkable thermal stability when compared with the corresponding cyanocuprate counterpart. The yields from conjugated addition to several 2-nitrovinyl benzenes are moderate to good and the reaction itself is easier to execute and cleaner. As an application, this methodology was applied to an alternative synthesis of (±)-Rolipram, a drug with several interesting biological activities.

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