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604800-43-3

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604800-43-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 604800-43-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,0,4,8,0 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 604800-43:
(8*6)+(7*0)+(6*4)+(5*8)+(4*0)+(3*0)+(2*4)+(1*3)=123
123 % 10 = 3
So 604800-43-3 is a valid CAS Registry Number.

604800-43-3Upstream product

604800-43-3Downstream Products

604800-43-3Relevant articles and documents

Apolar ortho-phenylene ethynylene oligomers: Conformational ordering without intermolecular aggregation

Jiang, Jing,Slutsky, Morris M.,Jones, Ticora V.,Tew, Gregory N.

, p. 307 - 312 (2010)

This paper describes the characterization of solvent induced folding behavior for non-polar (NP) alkoxy substituted ortho-phenylene ethynylene (o-PE) oligomers. Oligomers of lengths up to nine units have been shown to adopt helical conformations in heptane by NMR and CD spectroscopy, while chloroform promotes extended conformations. Surprisingly, the molar ellipticity values found in heptane for these oligomers are very small compared to other literature values of meta-phenylene ethynylene (m-PE) folded systems; however, comparable molar ellipticity values were found for a closed macrocyclic o-PE suggesting the weak ellipticity is a molecular-feature rather than a quality of folding indicator.

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