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α-Fluoren-9-ylidene-p-tolualdehyd, also known as 9-(p-tolylidene)fluorene, is an organic compound characterized by its unique structure that features a fluorene core with a p-tolyl group (a toluene ring with a methyl substituent) attached to the 9-position. This aldehyde is known for its aromatic properties and is often used in the synthesis of various complex organic molecules, particularly in the field of materials science for the creation of polymers and other advanced materials. Its chemical formula is C20H16O, and it is a colorless to pale yellow solid with a distinct aromatic odor. Due to its reactivity, it is typically handled under controlled conditions and is an important intermediate in the production of certain pharmaceuticals and specialty chemicals.

21826-36-8

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21826-36-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21826-36-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,2 and 6 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 21826-36:
(7*2)+(6*1)+(5*8)+(4*2)+(3*6)+(2*3)+(1*6)=98
98 % 10 = 8
So 21826-36-8 is a valid CAS Registry Number.

21826-36-8Downstream Products

21826-36-8Relevant academic research and scientific papers

Electrochemically induced chain reactions: The addition of fluorene and indene to aromatic aldehydes initiated by electrochemical reduction

Gard,Hanquet,Rouiller,Mugnier,Lessard

, p. 55 - 63 (1996)

The electrochemical reduction at -30°C of 2,6-dichlorobenzaldehyde (1a), benzaldehyde (1b), and terephthalaldehyde (2) in tetrahydrofuran with tetrabutylammonium perchlorate as supporting electrolyte, under an argon atmosphere and in the presence of fluor

Facile synthesis of 1,2-diaryl- and triarylethenes with supported fluoride bases

Hellwinkel,Goke,Karle

, p. 973 - 978 (2007/10/02)

Differently substituted arenecarbaldehydes, mainly benzaldehydes, can be very efficiently condensed with a wide variety of methylbenzenes having an electron-withdrawing group in the para-position, as well as with fluorenes, xanthene, cyclopentadienes and indenes by using a standardized KF- or CsF-Al2O3 base system in dimethylformamide.

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