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5-Oxo-5-phenyl-pent-2-ensaeure-methylester, also known as methyl 5-oxo-5-phenylpent-2-enoate, is a chemical compound with the molecular formula C12H12O3. It is a colorless to pale yellow liquid with a fruity, floral odor. This organic compound is characterized by the presence of a methyl ester group, a phenyl ring, and a conjugated diene system. It is used as a synthetic intermediate in the production of various pharmaceuticals, agrochemicals, and fragrances. The compound is synthesized through various methods, including the condensation of benzaldehyde with methyl acetoacetate, followed by oxidation and esterification. Due to its reactive nature, it is sensitive to light, heat, and moisture, and should be stored under controlled conditions to maintain its stability and purity.

2128-94-1

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2128-94-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 2128-94-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 2,1,2 and 8 respectively; the second part has 2 digits, 9 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 2128-94:
(6*2)+(5*1)+(4*2)+(3*8)+(2*9)+(1*4)=71
71 % 10 = 1
So 2128-94-1 is a valid CAS Registry Number.

2128-94-1Downstream Products

2128-94-1Relevant academic research and scientific papers

Mechanistic studies of SCS-Pd complexes used in Heck catalysis

Bergbreiter, David E.,Osburn, Philip L.,Frels, Jonathon D.

, p. 172 - 184 (2007/10/03)

Air-stable SCS palladacycles that can be used to promote C-C coupling chemistry were studied mechanistically. Using a small library of electronically varied SCS ligands, a collection of palladacycles was synthesized. Kinetic studies showed that these comp

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