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1620816-64-9

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1620816-64-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1620816-64-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,0,8,1 and 6 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1620816-64:
(9*1)+(8*6)+(7*2)+(6*0)+(5*8)+(4*1)+(3*6)+(2*6)+(1*4)=149
149 % 10 = 9
So 1620816-64-9 is a valid CAS Registry Number.

1620816-64-9Downstream Products

1620816-64-9Relevant articles and documents

Palladium-catalyzed direct C7-arylation of substituted indazoles

Naas, Mohammed,El Kazzouli, Sa?d,Essassi, El Mokhtar,Bousmina, Mosto,Guillaumet, Gérald

, p. 7286 - 7293 (2014/09/16)

A novel direct C7-arylation of indazoles with iodoaryls is described using Pd(OAc)2 as catalyst, 1,10-phenanthroline as ligand, and K 2CO3 as base in refluxing DMA. Direct C7-arylation of 3-substituted 1H-indazole containing an EWG on the arene ring gave the expected products in good isolated yields. In addition, a one-pot Suzuki-Miyaura/ arylation procedure leading to C3,C7-diarylated indazoles has been developed.

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