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89459-98-3

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89459-98-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89459-98-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,4,5 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 89459-98:
(7*8)+(6*9)+(5*4)+(4*5)+(3*9)+(2*9)+(1*8)=203
203 % 10 = 3
So 89459-98-3 is a valid CAS Registry Number.

89459-98-3Relevant articles and documents

A critical outlook and comparison of enantioselective oxidation methodologies of olefins

Bonini, Carlo,Righi, Giuliana

, p. 4981 - 5021 (2002)

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Amino Acids and Peptides; 70. Optically Active α-Amino Acids, N-Boc-Aminoaldehydes and α-Amino-β-hydroxy Acids from 2,3-Epoxy Alcohols

Schmidt, Ulrich,Respondek, Mathias,Lieberknecht, Albrecht,Werner, Juergen,Fischer, Peter

, p. 256 - 261 (2007/10/02)

Trichloroacetimidic esters of 2,3-epoxy alcohols are transformed into oxazolines 5 and dihydrooxazines 6, respectively, depending on the structure of the educts and the catalyst.The five-membered ring compounds 5 are transformed into erythro-α-amino-β-hydroxy acids (60-70percent from epoxy alcohols) via axazolidinones 11, 12, and 13. α-Amino acids and α-substituted α-amino acids 10 as well as the corresponding aldehydes 9 are obtained from the dihydrooxazines 6 (50-60percent from epoxy alcohols).

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