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171556-68-6

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171556-68-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 171556-68-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,5,5 and 6 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 171556-68:
(8*1)+(7*7)+(6*1)+(5*5)+(4*5)+(3*6)+(2*6)+(1*8)=146
146 % 10 = 6
So 171556-68-6 is a valid CAS Registry Number.

171556-68-6Relevant articles and documents

A Versatile Chemo-Enzymatic Route to Enantiomerically Pure β-Branched α-Amino Acids

Roff, Geoffrey J.,Lloyd, Richard C.,Turner, Nicholas J.

, p. 4098 - 4099 (2007/10/03)

A series of diastereoisomers of β-methyl-β-phenylalanine analogues 1a?f have been prepared in enantiomerically pure form using a combination of chemo- and biocatalysis. Starting from l-threonine methyl ester 2, a range of β,β-disubstituted didehydroamino

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