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124050-39-1

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124050-39-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 124050-39-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,0,5 and 0 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 124050-39:
(8*1)+(7*2)+(6*4)+(5*0)+(4*5)+(3*0)+(2*3)+(1*9)=81
81 % 10 = 1
So 124050-39-1 is a valid CAS Registry Number.

124050-39-1Downstream Products

124050-39-1Relevant articles and documents

A general and efficient synthesis of β-ketophosphonates

Coutrot, Philippe,Grison, Claude,Lachgar, Mohamed,Ghribi, Abdelaziz

, p. 925 - 942 (2007/10/02)

The acylation of organocuprates or organolithiated reagents with 2-dialkylphosphonoalkanoyl chlorides or dialkylphosphonofluoroacetyl chlorides represents a general and efficient route to β-ketophosphonates.A Horner reaction between the lithiated anions derived from α-fluoro-β-ketophosphonates and aldehydes leads to 2-fluoro-2-enones whereas the lithiated anions derived from γ-acetylenic-β-ketophosphonates afford enynones. β-ketophosphonate / 2-dialkylphosphonoalkanoyl chloride / dialkylphosphonofluoroacetyl chloride / 2-fluoro-2-enone / enynone

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