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1443007-95-1

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1443007-95-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1443007-95-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,3,0,0 and 7 respectively; the second part has 2 digits, 9 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1443007-95:
(9*1)+(8*4)+(7*4)+(6*3)+(5*0)+(4*0)+(3*7)+(2*9)+(1*5)=131
131 % 10 = 1
So 1443007-95-1 is a valid CAS Registry Number.

1443007-95-1Relevant articles and documents

Synthesis of quaternary α-methyl α-amino acids by asymmetric alkylation of pseudoephenamine alaninamide pivaldimine

Hugelshofer, Cedric L.,Mellem, Kevin T.,Myers, Andrew G.

, p. 3134 - 3137 (2013/07/26)

The utility of pseudoephenamine as a chiral auxiliary for the alkylative construction of quaternary α-methyl α-amino acids is demonstrated. The method is notable for the high diastereoselectivities of the alkylation reactions, for its versatility with respect to electrophilic substrate partners, and for its mild hydrolysis conditions, which provide α-amino acids without salt contaminants. Alternatively, α-amino esters can be obtained by direct alcoholysis.

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