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204130-89-2

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204130-89-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 204130-89-2 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, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 204130-89:
(8*2)+(7*0)+(6*4)+(5*1)+(4*3)+(3*0)+(2*8)+(1*9)=82
82 % 10 = 2
So 204130-89-2 is a valid CAS Registry Number.

204130-89-2Downstream Products

204130-89-2Relevant articles and documents

A novel precursor for per(poly)fluoroalkyl heterocycles from N-aryl per(poly)fluoroalkyl imidoyl iodides

Yu, Hong-Bin,Huang, Wei-Yuan

, p. 69 - 73 (2007/10/03)

N-aryl 1-per(poly)fluoroalkyl acetylenic imines (3), the cross coupling products of N-aryl per(poly)fluoroalkyl imidoyl iodides with acetylenes, could be used as novel precursors to synthesize fluorinated heterocycles such as pyrazoles and pyrimidines.

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