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254112-80-6

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254112-80-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 254112-80-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,4,1,1 and 2 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 254112-80:
(8*2)+(7*5)+(6*4)+(5*1)+(4*1)+(3*2)+(2*8)+(1*0)=106
106 % 10 = 6
So 254112-80-6 is a valid CAS Registry Number.

254112-80-6Downstream Products

254112-80-6Relevant articles and documents

On the question of the diastereoselective alkylation of 4-unsubstituted 3-amino β-lactams. A concise synthesis of α-branched α-amino β-lactams and their coupling with α-amino acid esters

Palomo, Claudio,Aizpurua, Jesus M.,Galarza, Regina,Benito, Ana,Khamrai, Uttam K.,Eikeseth, Unni,Linden, Anthony

, p. 5563 - 5570 (2007/10/03)

The reaction of [(4S)-2-oxo-4-phenyloxazolidin-3-yl]acetic acid chloride with N-methylidene-bis-[(trimethylsilyl)methyl]amine and triethylamine in refluxing chloroform leads to a 4-unsubstituted β-lactam able to undergo highly asymmetric alkylations at th

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