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167218-55-5

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167218-55-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 167218-55-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,7,2,1 and 8 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 167218-55:
(8*1)+(7*6)+(6*7)+(5*2)+(4*1)+(3*8)+(2*5)+(1*5)=145
145 % 10 = 5
So 167218-55-5 is a valid CAS Registry Number.

167218-55-5Downstream Products

167218-55-5Relevant articles and documents

METHOD OF PRODUCING AROMATIC AMINO COMPOUNDS

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Page/Page column 8, (2011/10/31)

[Problem] To provide a method of producing an aromatic amino compound by using a primary or secondary amine compound and a halogenated aromatic compound as starting materials, and relying upon the Ullmann reaction, the method being capable of obtaining the highly pure aromatic amino compound in high yields and inexpensively. [Means for Solution] A method of producing an aromatic amino compound by using a primary or secondary amine compound having an aromatic ring group and a halogenated aromatic compound as starting materials, reacting the amine compound with the halogenated aromatic compound in the presence of a copper catalyst and a base so as to produce the aromatic amino compound having a structure in which an aromatic ring group derived from the halogenated aromatic compound is coupled to the amino group of the amine compound, wherein the amine compound and the halogenated aromatic compound are reacted together under a condition where an aromatic oxycarboxylic acid having a hydroxyl group and a hydroxycarbonyl group that are bonded to neighboring carbon atoms, is made present together with the copper catalyst and the base.

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