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83396-72-9

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83396-72-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 83396-72-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,3,3,9 and 6 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 83396-72:
(7*8)+(6*3)+(5*3)+(4*9)+(3*6)+(2*7)+(1*2)=159
159 % 10 = 9
So 83396-72-9 is a valid CAS Registry Number.

83396-72-9Downstream Products

83396-72-9Relevant articles and documents

UNUSUAL AMINO ACIDS. IV. ASYMMETRIC SYNTHESIS OF THIENYLALANINES

Doebler, Christian,Kreuzfeld, H.-J.,Krause, H. W.,Michalik, M.

, p. 1833 - 1842 (2007/10/02)

(Z)-2-N-Acylamino-3-thienyl-acrylic acids and thei esters were prepared by known procedures and hydrogenated to the corresponding optically active 2-N-acetyl(or benzoyl)-3-(2- or 3-thienyl)-alanines with optically yields up to 90percent using the rhodium complexes of 'PROPRAPHOS" 6a,b and O,N-bis(diphenylphosphino)-2-exo-hydroxy,3-endo-methylamino-norbornane 6c as chiral catalysts.Recrystallization and deacylation of the obtained amino acid derivatives yields the optically pure hydrochlorides of the thienylalanines as the free amino acids.

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