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81727-43-7

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81727-43-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81727-43-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,2 and 7 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81727-43:
(7*8)+(6*1)+(5*7)+(4*2)+(3*7)+(2*4)+(1*3)=137
137 % 10 = 7
So 81727-43-7 is a valid CAS Registry Number.

81727-43-7Downstream Products

81727-43-7Relevant articles and documents

STUDIES ON THE SYNTHESIS OF CHEMOTHERAPEUTICS. PART XI. SYNTHESIS AND ANTIBACTERIAL ACTIVITIES OF PHOSPHONOPEPTIDES

Kametani, Tetsuji,Kigasawa, Kazuo,Hiiragi, Mineharu,Wakisaka, Kikuo,Haga, Seiji,et al.

, p. 1205 - 1242 (2007/10/02)

A variety of phosphonopeptides, shown in 2 as a general formula, containg natural and/or unnatural amino acids were synthesized, and their in vitro antibacterial activities were examined.N-Protected amino acids were condensed with 1-amino-ethylphosphonic acid or its ester followed by deprotection and hydrolysis to give the requisite phosphonopeptides.Several compounds showed higher levels of activity against certain members of Gram-negative bacteria than those of Alafosfalin (1) as the standard phosphonopeptide.A brief discussion on structure-activity relationships is also described.

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