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1-Benzyl-3-dimethylaminomethylene-2,3-dihydro-1H-indol-2-one is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

221642-05-3

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221642-05-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221642-05-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,6,4 and 2 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 221642-05:
(8*2)+(7*2)+(6*1)+(5*6)+(4*4)+(3*2)+(2*0)+(1*5)=93
93 % 10 = 3
So 221642-05-3 is a valid CAS Registry Number.

221642-05-3Relevant articles and documents

v-Triazolines. Part 41. A new synthesis of 2-alkylquinazolines and 2,9-dialkylpyrimido[4,5-b]indoles

Erba, Emanuela,Pocar, Donato,Valle, Marinella

, p. 421 - 425 (2007/10/03)

2-Alkylquinazolines were obtained from amidines by reaction with ammonia. The synthesis has been applied to the preparation of 2,9-dialkylpyrimido[4,5-b]indoles, in a one pot reaction, from 1-alkyl-2-azidoindole-3-carbaldehydes, a secondary amine and aldehydes and reaction with ammonia.

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