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s-benzvaleno-benzo-benzvalene is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

77669-80-8

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77669-80-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 77669-80-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,6,6 and 9 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 77669-80:
(7*7)+(6*7)+(5*6)+(4*6)+(3*9)+(2*8)+(1*0)=188
188 % 10 = 8
So 77669-80-8 is a valid CAS Registry Number.

77669-80-8Upstream product

77669-80-8Downstream Products

77669-80-8Relevant academic research and scientific papers

SYM-BENZVALENO-BENZO-BENZVALENE, A DOUBLE VALENCE ISOMER OF ANTHRACENE

Gandillon, Gerard,Bianco, Bernard,Burger, Ulrich

, p. 51 - 54 (1981)

Dilithio-s-indacene (1) on reaction with excess chlorocarbene produces s-benzvaleno-benzo-benzvalene (3).Unlike benzvalene, it does not aromatize on heating but decomposes stepwise to 1,5- and 1,7-bis-methylene-dihydro-indacene (6 and 7).

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