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spiro[2H-indole-2,3'-oxindole] is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

13220-43-4

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13220-43-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 13220-43-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,3,2,2 and 0 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 13220-43:
(7*1)+(6*3)+(5*2)+(4*2)+(3*0)+(2*4)+(1*3)=54
54 % 10 = 4
So 13220-43-4 is a valid CAS Registry Number.

13220-43-4Downstream Products

13220-43-4Relevant academic research and scientific papers

Microwave-assisted reductive cyclization: An easy entry to the indoloquinolines and spiro[2H-indole-2,3′-oxindole]

Parvatkar, Prakash T.,Majik, Mahesh S.

, p. 22481 - 22486 (2014/06/23)

Synthesis of two linear indoloquinolines i.e. 6H-indolo[2,3-b]quinoline & 11-hydroxy-10H-indolo[3,2-b]quinoline, and spiro[2H-indole-2,3′- oxindole] from a common intermediate, (2-nitrophenyl)methylidene-dihydro- indolone derivative is described using microwave-mediated reductive cyclization as the key step. This journal is the Partner Organisations 2014.

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