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164577-21-3

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164577-21-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 164577-21-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,4,5,7 and 7 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 164577-21:
(8*1)+(7*6)+(6*4)+(5*5)+(4*7)+(3*7)+(2*2)+(1*1)=153
153 % 10 = 3
So 164577-21-3 is a valid CAS Registry Number.

164577-21-3Relevant articles and documents

A mild stereo- and enantiospecific conversion of 2,3-diaryl-substituted oxiranes into 2,2-dimethyl-1,3-dioxolanes by an acetone/amberlyst 15 system

Solladie-Cavallo, Ariette,Choucair, Elias,Balaz, Milan,Lupattelli, Paolo,Bonini, Carlo,Di Blasio, Nadia

, p. 3007 - 3011 (2006)

Amberlyst 15 is an efficient catalyst for the reaction of aryl-substituted oxiranes with acetone to prepare 2,2-dimethyl-1,3-dioxolanes in high yields. trans-2,3-Diaryloxiranes afford trans-acetonides enantiospecifically at room temperature, and the use of enantiopure 2,3-diaryloxiranes results in no loss of stereochemical integrity in the resulting trans-acetonides. Wiley-VCH Verlag GmbH & Co. KGaA, 2006.

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