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Naphthalene, 1-(1H-inden-2-yl)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

20924-21-4

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20924-21-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 20924-21-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,0,9,2 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 20924-21:
(7*2)+(6*0)+(5*9)+(4*2)+(3*4)+(2*2)+(1*1)=84
84 % 10 = 4
So 20924-21-4 is a valid CAS Registry Number.

20924-21-4Upstream product

20924-21-4Relevant academic research and scientific papers

Low-valent niobium-mediated synthesis of indenes: Intramolecular coupling reaction of CF3 group with alkene C-H bond

Fuchibe, Kohei,Mitomi, Ken,Akiyama, Takahiko

, p. 24 - 25 (2007)

CF3 group of o-alkenyl-α,α,α-trifluorotoluenes underwent intramolecular coupling reaction with the alkene C-H bond under NbCl5/LiAlH4 system. Substituted indenes were obtained in good yields. Copyright

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