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1259998-89-4

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1259998-89-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1259998-89-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,9,9,9 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1259998-89:
(9*1)+(8*2)+(7*5)+(6*9)+(5*9)+(4*9)+(3*8)+(2*8)+(1*9)=244
244 % 10 = 4
So 1259998-89-4 is a valid CAS Registry Number.

1259998-89-4Relevant articles and documents

Detrifluoroacetylative Generation of Halogenated Enolates: Practical Access to Perhalogenated Ketones and Alkenes

Balaraman, Kaluvu,Moskowitz, Max,Liu, Yang,Wolf, Christian

, p. 2376 - 2384 (2016)

Sequential chlorination/fluorination of aromatic trifluoroacetylated ketones gives 1-aryl 2-chloro-2,4,4,4-tetrafluorobutan-1,3-dione hydrates that are used for the synthesis of ketones and alkenes exhibiting a terminal bromochlorofluoromethyl group. The

Beta-iododifluoroacetone derivative and preparation method thereof

-

, (2020/01/12)

The invention relates to a beta-iododifluoroacetone derivative and a preparation method thereof. The preparation method comprises the following steps: dissolving an iododifluoroketone compound raw material and an olefin raw material in a solvent, then add

Synthesis of α,α-difluorobenzoyl oxygen heterocycles via the radical reaction of 2-iodo-2,2-difluoroacetophenones with unsaturated acids or unsaturated alcohols

Chen, Heng,Wang, Jiexiong,Wu, Jingjing,Kuang, Yujia,Wu, Fanhong

, p. 41 - 46 (2017/06/14)

A convenient and facile method for the direct synthesis of α,α-difluorobenzoyl lactones or cyclic ethers via the radical cyclization reaction of 2-iodo-2,2-difluoroacetophenone with unsaturated acids or alcohols was reported.

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