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(Z)-3-Oxo-5-phenyl-pent-4-enoic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

104858-57-3

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104858-57-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104858-57-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,8,5 and 8 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 104858-57:
(8*1)+(7*0)+(6*4)+(5*8)+(4*5)+(3*8)+(2*5)+(1*7)=133
133 % 10 = 3
So 104858-57-3 is a valid CAS Registry Number.

104858-57-3Downstream Products

104858-57-3Relevant articles and documents

ANIONIC ACTIVATION OF STABILIZED YLIDES. A HIGHLY Z-STEREOSELECTIVE WITTIG REACTION OF (3-ETHOXYCARBONYL-2-OXOPROPYLIDENE)TRIPHENYLPHOSPHORANE WITH ALIPHATIC ALDEHYDES

Pietrusiewicz, K. Michal,Monkiewicz, Jaroslaw

, p. 739 - 742 (1986)

Reaction of stabilized ylide 1 with carbonyl partners can be promoted via anionic activation of the ylide; the presence of charge is responsible for the high Z-selectivity in the direct formation of conjugated enones.

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