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1,1,7,7-Tetrakis-(4-tert-butyl-phenyl)-3,3,5,5-tetramethyl-5,7-dihydro-1H,3H-benzo[1,2-c;4,5-c']difuran is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

138956-17-9

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138956-17-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 138956-17-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,5 and 6 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 138956-17:
(8*1)+(7*3)+(6*8)+(5*9)+(4*5)+(3*6)+(2*1)+(1*7)=169
169 % 10 = 9
So 138956-17-9 is a valid CAS Registry Number.

138956-17-9Relevant academic research and scientific papers

?-Conjugated Systems with Unique Electronic Structure: A Case of "Planarized" 1,3-Connected Polyarylmethyl Carbodianion and Stable Triplet Hydrocarbon Diradical

Rajca, Andrzej,Utamapanya, Suchada

, p. 1760 - 1767 (2007/10/02)

The effect of "planarization" on ?-conjugated 1,3-connected polyarylmethyls in connection with the electronic structure and magnetic properties is examined.The synthesis, ESR and UV-vis spectroscopy, voltammetry, and magnetic studies of triplet diradical

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