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143051-54-1

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143051-54-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 143051-54-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,3,0,5 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 143051-54:
(8*1)+(7*4)+(6*3)+(5*0)+(4*5)+(3*1)+(2*5)+(1*4)=91
91 % 10 = 1
So 143051-54-1 is a valid CAS Registry Number.

143051-54-1Relevant articles and documents

UNUSUAL AMINO ACIDS II. Asymmetric Synthesis of Fluorine Containing Phenylalanines

Krause, Hans-Walter,Kreuzfeld, Hans-Joern,Doebler, Christian,Taudien, Stefan

, p. 555 - 566 (1992)

Few (Z)-α-N-benzoylamino-β-(fluorophenyl)-acrylic acids and their esters were prepared by known procedures and hydrogenated to the corresponding optically active α-benzoyl-β-(fluorophenyl)-alanine derivatives with optical yields up to 90percent using the

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