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Benzene,1,1'-(1,2-diethylidene-1,2-ethanediyl)-bis-, also known as 1,1'-(1,2-diethylidene-1,2-ethanediyl)bisbenzene or 1,1'-(1,2-ethanediyl)bis[1,1'-biphenyl], is an organic compound with the chemical formula C18H18. It is a symmetrical molecule consisting of two benzene rings connected by a 1,2-diethylidene-1,2-ethanediyl bridge, which essentially forms a rigid structure with a central ethylene group linking the two aromatic rings. Benzene,1,1'-(1,2-diethylidene-1,2-ethanediyl)- bis- is characterized by its symmetrical structure and is often used in the synthesis of various organic compounds and materials due to its unique connectivity and stability.

4403-15-0

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4403-15-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4403-15-0 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,4,0 and 3 respectively; the second part has 2 digits, 1 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4403-15:
(6*4)+(5*4)+(4*0)+(3*3)+(2*1)+(1*5)=60
60 % 10 = 0
So 4403-15-0 is a valid CAS Registry Number.

4403-15-0Relevant academic research and scientific papers

Synthesis of indenes via Bronsted acid catalyzed cyclization of diaryl- and alkyl aryl-1,3-dienes

Eom, Dahan,Park, Sangjune,Park, Youngchul,Ryu, Taekyu,Lee, Phil Ho

supporting information, p. 5392 - 5395,4 (2012/12/12)

Substituted indenes can be synthesized via the Bronsted acid catalyzed cyclization of diaryl- and alkyl aryl-1,3-dienes. In this approach, treatment of symmetric or unsymmetric diaryl- and alkyl aryl-1,3-dienes with a catalytic amount of trifluoromethanesulfonic acid gives a variety of indene derivatives in good to excellent yields under mild conditions.

Synthesis of indenes via Br?nsted acid catalyzed cyclization of diaryl- and alkyl aryl-1,3-dienes

Eom, Dahan,Park, Sangjune,Park, Youngchul,Ryu, Taekyu,Lee, Phil Ho

supporting information, p. 5392 - 5395 (2013/01/15)

Substituted indenes can be synthesized via the Br?nsted acid catalyzed cyclization of diaryl- and alkyl aryl-1,3-dienes. In this approach, treatment of symmetric or unsymmetric diaryl- and alkyl aryl-1,3-dienes with a catalytic amount of trifluoromethanesulfonic acid gives a variety of indene derivatives in good to excellent yields under mild conditions.

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