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488707-59-1

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488707-59-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 488707-59-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,8,8,7,0 and 7 respectively; the second part has 2 digits, 5 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 488707-59:
(8*4)+(7*8)+(6*8)+(5*7)+(4*0)+(3*7)+(2*5)+(1*9)=211
211 % 10 = 1
So 488707-59-1 is a valid CAS Registry Number.

488707-59-1Downstream Products

488707-59-1Relevant articles and documents

Versatile three-component synthesis of 2'-amino-1,2-dihydrospiro[(3H)- indole-3,4'-(4'H)-pyran]-2-ones

Mortikov,Litvinov,Shestopalov,Rodinovskaya,Shestopalov

experimental part, p. 2373 - 2380 (2010/02/16)

A versatile method for the synthesis of 2'-amino-1,2-dihydrospiro[(3H)- indole-3,4'-(4'H)-pyran]-2-ones has been suggested consisting in the three-component reaction of isatins, cyanoacetic acid derivatives, and α-methylenecarbonyl compounds (β-dicarbonyl compounds, activated phenols, and OH-substituted heterocycles) in ethanol in the presence of triethylamine as a catalyst. The reaction proceeds selectively to form spiro[(3H)-indole-3,4'-(4'H)-pyrans].

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