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1246443-78-6

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1246443-78-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1246443-78-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,6,4,4 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1246443-78:
(9*1)+(8*2)+(7*4)+(6*6)+(5*4)+(4*4)+(3*3)+(2*7)+(1*8)=156
156 % 10 = 6
So 1246443-78-6 is a valid CAS Registry Number.

1246443-78-6Relevant articles and documents

Synthesis of new spiro compounds containing a carbamate group

Velikorodov,Poddubnyi,Kuanchalieva,Krivosheev

, p. 1826 - 1829 (2010)

1,3-Dipolar cycloaddition to methyl 4-[2-(2-oxo-2,3-dihydro-1H-indol-3- ylidene)-1-oxoethyl]-phenylcarbamate of diazomethane in chloroform-diethyl ether and of 3,4-dimethoxybenzonitrile oxide generated from the corresponding aldehyde oxime by the action of N-chlorobenzenesulfonamide sodium salt (Chloramine B) in boiling ethanol gave, respectively, methyl 4-(2-oxo-1′,5′-dihydro-1H-spiro[indole-3,4′-pyrazol] -3′-ylcarbonyl)phenylcarbamate and methyl 4-[3′-(3,4- dimethoxyphenyl)-2-oxo-1H,4′H-spiro[indole-3,5′-isoxazol] -4′-ylcarbonyl]phenylcarbamate. The condensation of methyl 4-[2-(2-oxo-2,3-dihydro-1H-indol-3-ylidene)-1-oxoethyl]phenylcarbamate with hydrazine hydrate in ethanol afforded methyl 4-(2-oxo-1,2,2′,4′- tetrahydrospiro[indole-3,3′-pyrazol]-5′-yl)phenylcarbamate. Pleiades Publishing, Ltd., 2010.

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