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1,2-Bis(p-nitrophenylethynyl)cyclohexene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

172472-30-9

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172472-30-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 172472-30-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,2,4,7 and 2 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 172472-30:
(8*1)+(7*7)+(6*2)+(5*4)+(4*7)+(3*2)+(2*3)+(1*0)=129
129 % 10 = 9
So 172472-30-9 is a valid CAS Registry Number.

172472-30-9Downstream Products

172472-30-9Relevant academic research and scientific papers

Polar Effects in the Transition State of the Bergman Cyclization

Schmittel, Michael,Kiau, Susanne

, p. 953 - 954 (1995)

From the kinetic data of enediynes 1a-c it is concluded that electron withdrawing substituents are lowering the free activation energy in the Bergman cycloaromatization by decreasing the repulsion of the in-plane ?-orbitals.

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