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125672-03-9

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125672-03-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 125672-03-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,5,6,7 and 2 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 125672-03:
(8*1)+(7*2)+(6*5)+(5*6)+(4*7)+(3*2)+(2*0)+(1*3)=119
119 % 10 = 9
So 125672-03-9 is a valid CAS Registry Number.

125672-03-9Downstream Products

125672-03-9Relevant articles and documents

Bifunctional ionic liquid, preparation method thereof and application of bifunctional ionic liquid in catalytic synthesis of bisphenol compounds

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Paragraph 0068-0069, (2021/08/14)

The invention discloses a bifunctional ionic liquid, a preparation method thereof and application of the bifunctional ionic liquid in catalytic synthesis of bisphenol compounds, and belongs to the field of application of ionic liquid catalysts. The bifunctional ionic liquid is composed of heterocyclic quaternary ammonium cations containing sulfonic groups and sulfydryl and organic strong acid anions containing or not containing sulfydryl. The bifunctional ionic liquid has the functions of strong protonic acid and a -SH-containing compound, is used for catalytic synthesis of diphenolic acid, bisphenol A, bisphenol fluorene and the like, and has the characteristics of high reaction rate, high target product yield and good selectivity. The bifunctional ionic liquid is a green catalyst which is stable in performance and can be recycled, and compared with a protonic acid and sulfhydryl compound composite catalyst used in a traditional production process, the production process is simplified, equipment corrosion is reduced, and the production cost is reduced.

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