Cas 1353040-13-7,3-chloro-2,5-bis(4-fluorophenyl)selenophene

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Check Digit Verification of cas no

The CAS Registry Mumber 1353040-13-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,5,3,0,4 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1353040-13:
(9*1)+(8*3)+(7*5)+(6*3)+(5*0)+(4*4)+(3*0)+(2*1)+(1*3)=107
107 % 10 = 7
So 1353040-13-7 is a valid CAS Registry Number.

1353040-13-7Upstream product

1353040-21-7 C₂₀H₁₈F₂Se

1353040-13-7Downstream Products

1353040-13-7Relevant academic research and scientific papers

Copper(II)-mediated intramolecular cyclization of (Z)-chalcogenoenynes: Synthesis of 3-halochalcogenophene derivatives

Barancelli, Daniela A.,Schumacher, Ricardo F.,Leite, Marlon R.,Zeni, Gilson

experimental part, p. 6713 - 6718 (2012/01/04)

We present our results on the cyclization of (Z)-chalcogenoenynes mediated by copper(II) salts to afford 3-halochalcogenophenes in satisfactory yields through an intramolecular 5-endo-dig cyclization. The methodology was carried out using CuCl2

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