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158609-09-7

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158609-09-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 158609-09-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,8,6,0 and 9 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 158609-09:
(8*1)+(7*5)+(6*8)+(5*6)+(4*0)+(3*9)+(2*0)+(1*9)=157
157 % 10 = 7
So 158609-09-7 is a valid CAS Registry Number.

158609-09-7Downstream Products

158609-09-7Relevant articles and documents

Efficient halogenation synthesis method of aryl halide

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Paragraph 0080-0084, (2021/03/31)

The invention discloses an efficient halogenation synthesis method of aryl halide. The method comprises the following step: in the presence of a catalyst (sulfoxide or oxynitride), a halogenation reagent and a solvent, carrying out a halogenation reaction on an aromatic ring compound to obtain the aryl halide. According to the present invention, in the presence of a catalyst (sulfoxide or nitrogenoxide), a halogenation reagent and a solvent, the aromatic ring is subjected to an efficient halogenation reaction, such that the very useful aryl halide can be obtained with high activity and high selectivity; and by adopting the method disclosed by the invention, aryl halides can be efficiently synthesized, and the method has a wide application prospect in actual production.

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