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8-phenyl-8-chloro-2-oxa-cis-bicyclo<4.2.0>octan-7-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139757-89-4

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139757-89-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139757-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,7,5 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 139757-89:
(8*1)+(7*3)+(6*9)+(5*7)+(4*5)+(3*7)+(2*8)+(1*9)=184
184 % 10 = 4
So 139757-89-4 is a valid CAS Registry Number.

139757-89-4Relevant academic research and scientific papers

Proximity Effects in Fused Cyclobutanones. Facile Formation of Cage Systems

Hassner, A.,Naidorf-Meir, Simha,Gottlieb, H. E.,Goldberg, I.

, p. 2442 - 2445 (1992)

Chlorobicyclooctanone 3 on reaction with H2O-Et3N in acetonitrile at 20 deg C produced in high yield four complex dimeric compounds 4-7.The novel structures produced by C-C bond formation between tertiary centers were revealed by NMR and X-ray diffraction

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