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204130-91-6

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204130-91-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 204130-91-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,4,1,3 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 204130-91:
(8*2)+(7*0)+(6*4)+(5*1)+(4*3)+(3*0)+(2*9)+(1*1)=76
76 % 10 = 6
So 204130-91-6 is a valid CAS Registry Number.

204130-91-6Relevant articles and documents

Synthesis of highly substituted 2-perfluoroalkyl quinolines by electrophilic iodocyclization of perfluoroalkyl propargyl imines/amines

Likhar, Pravin R.,Subhas, Madavu Salian,Roy, Sarabindu,Kantam, Mannepalli Lakshmi,Sridhar, Balasubramanian,Seth, Ratanesh Kumar,Biswas, Sukla

scheme or table, p. 85 - 93 (2009/04/07)

A series of highly substituted 2-perfluoroalkyl-3-iodoquinolines are prepared by two different methods in good to excellent yields under mild reaction conditions. The first method involves iodocyclization of perfluoroalkyl propargyl imines with I2/s

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