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1,1,2,2-tetraphenylpyracene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

1165939-91-2

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1165939-91-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1165939-91-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,1,6,5,9,3 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1165939-91:
(9*1)+(8*1)+(7*6)+(6*5)+(5*9)+(4*3)+(3*9)+(2*9)+(1*1)=192
192 % 10 = 2
So 1165939-91-2 is a valid CAS Registry Number.

1165939-91-2Upstream product

1165939-91-2Downstream Products

1165939-91-2Relevant academic research and scientific papers

Negligible diradical character for the ultralong C-C bond in 1,1,2,2-tetraarylpyracene derivatives at room temperature

Takeda, Takashi,Kawai, Hidetoshi,Herges, Rainer,Mucke, Eva,Sawai, Yoshitaka,Murakoshi, Kei,Fujiwara, Kenshu,Suzuki, Takanori

scheme or table, p. 3693 - 3697 (2009/10/04)

There is evidence that the crystalline-state thermochromic behavior of dispiropyracene acr-1 with an ultralong C-C bond [1.791(3) ? at 413 K, 1.771(3) ? at 93 K] might be due to thermal generation of a bond-dissociated triplet diradical. The C1

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