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173321-72-7

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173321-72-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 173321-72-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,3,2 and 1 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 173321-72:
(8*1)+(7*7)+(6*3)+(5*3)+(4*2)+(3*1)+(2*7)+(1*2)=117
117 % 10 = 7
So 173321-72-7 is a valid CAS Registry Number.

173321-72-7Relevant articles and documents

Weakly ligated palladium complexes PdCl2(RCN)2 in piperidine: Versatile catalysts for Sonogashira reaction of vinyl chlorides at room temperature

Alami, Mouad,Crousse, Benoit,Ferri, Fabiola

, p. 114 - 123 (2001)

Copper iodide and weakly ligated palladium complexes PdCl2(RCN)2 (R = Ph, Me) catalyzed efficiently the coupling reaction of vinyl chlorides with 1-alkynes in the presence of piperidine to give the corresponding conjugated enynes in good to excellent yields. The reaction takes place rapidly and cleanly at room temperature. Application to the synthesis of terbinafine which exhibits strong antimycotic activity has been realized.

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