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4-Nonenoic acid, 9-chloro-6-ethyl-3-oxo-2-(triphenylphosphoranylidene)-, ethyl ester, (E)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138541-97-6

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138541-97-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138541-97-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,5,4 and 1 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 138541-97:
(8*1)+(7*3)+(6*8)+(5*5)+(4*4)+(3*1)+(2*9)+(1*7)=146
146 % 10 = 6
So 138541-97-6 is a valid CAS Registry Number.

138541-97-6Relevant academic research and scientific papers

Stereochemistry of Metal-Halogen Exchange-Initiated Intramolecular Conjugate Addition Reactions in the Construction of 5-Membered Carbocycles

Cooke, Manning P.

, p. 1495 - 1503 (2007/10/02)

The stereochemistry of some lithium-iodine exchange-initiated cyclization reactions of model ω-iodo, γ-substituted activated olefins has been studied.The stereoselectivities of these anionic cyclization reactions have been found to be a function of the ol

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