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1613234-40-4

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1613234-40-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1613234-40-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,1,3,2,3 and 4 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1613234-40:
(9*1)+(8*6)+(7*1)+(6*3)+(5*2)+(4*3)+(3*4)+(2*4)+(1*0)=124
124 % 10 = 4
So 1613234-40-4 is a valid CAS Registry Number.

1613234-40-4Downstream Products

1613234-40-4Relevant articles and documents

SiO2-OSO3H nanoparticles: An efficient, versatile and new reagent for the one-pot synthesis of 2-amino-8-oxo-4,8-dihydropyrano[3,2-b] pyran-3-carbonitrile derivatives in water, a green protocol

Sadeghi, Bahareh,Nezhad, Parinaz Farokhi,Hashemian, Saeedeh

, p. 54 - 57 (2014)

In a one-pot three-component reaction, an aromatic or aliphatic aldehyde, malononitrile and 5-hydroxy-2-hydroxymethyl-4H-pyran-4-one were condensed for the synthesis of 2-amino-8-oxo-4,8-dihydropyrano[3,2-b]pyran-3-carbonitrile derivatives in the presence of nano-silica sulfuric acid (SiO 2-OSO3H nanoparticles) in improved yields. The catalyst is recoverable by simple filtration and can be used in the subsequent reactions.

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