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4125-57-9

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4125-57-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4125-57-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,1,2 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4125-57:
(6*4)+(5*1)+(4*2)+(3*5)+(2*5)+(1*7)=69
69 % 10 = 9
So 4125-57-9 is a valid CAS Registry Number.

4125-57-9Downstream Products

4125-57-9Relevant articles and documents

Catalytic and noncatalytic ammonolysis of polyfluorinated 1,3-dichlorobenzenes

Selivanova,Pokrovskii,Shteingarts

, p. 1023 - 1029 (2002)

Reactions of 1,3-dichlorotetrafluorobenzene and 1,3-dichloro-2,4,6-trifluorobenzene with aqueous ammonia in the presence and in the absence of copper(I) salt lead to fluorine replacement by amino group in the para and ortho positions with respect to the chlorine atom. Ammonolysis of the resulting chloropolyfluoroanilines in the absence of a catalyst involves replacement of fluorine atom in the meta position with respect to the amino group. In the presence of copper(I) salt, catalytic aminodechlorination occurs at the para and ortho positions with respect to the amino group introduced in the first stage.

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