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4-(furan-2-yl)methylidene-1H-isochromene-1,3-dione is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21401-69-4

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21401-69-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21401-69-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,4,0 and 1 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 21401-69:
(7*2)+(6*1)+(5*4)+(4*0)+(3*1)+(2*6)+(1*9)=64
64 % 10 = 4
So 21401-69-4 is a valid CAS Registry Number.

21401-69-4Relevant academic research and scientific papers

Synthesis of new trans-2-benzyl-3-(furan-2-yl)-4-substituted-1,2,3,4- tetrahydroisoquinolinones

Kandinska, Meglena I.,Kozekov, Ivan D.,Palamareva, Mariana D.

, p. 403 - 414 (2006)

The reaction of homophthalic anhydride and N-(furan-2-yl-methylidene)- benzylamine in different solvents and varying temperatures was studied in detail. Mixtures of the expected trans- and cis-1,2,3,4-tetrahydroisoquinoline- 4-carboxylic acids trans-5 and

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