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54429-89-9

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54429-89-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54429-89-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,4,2 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 54429-89:
(7*5)+(6*4)+(5*4)+(4*2)+(3*9)+(2*8)+(1*9)=139
139 % 10 = 9
So 54429-89-9 is a valid CAS Registry Number.

54429-89-9Relevant articles and documents

Solid-phase synthesis of functionalized tropane derivatives via 1,3-dipolar cycloaddition

Caix-Haumesser, Sandrine,Hanna, Issam,Lallemand, Jean-Yves,Peyronel, Jean-Fran?ois

, p. 3721 - 3723 (2001)

1,3-Dipolar cycloaddition of 3-oxidopyridinium betaine to activated olefins on solid-phase leads to resin-bound 8-azabicyclo[3.2.1]octenones which undergo further transformations such as 1,4-addition of nucleophiles. Cleavage of benzyl linker is achieved

Structure of the Calystegines: New alkaloids of the nortropane family

Ducrot,Lallemand

, p. 3879 - 3882 (2007/10/02)

Three new alkaloids have been isolated from Calystegia sepium; their structures have been established from their 1H and 13C N.M.R. spectra, and confirmed by the synthesis of model compounds.

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