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104045-04-7

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104045-04-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104045-04-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,0,4 and 5 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 104045-04:
(8*1)+(7*0)+(6*4)+(5*0)+(4*4)+(3*5)+(2*0)+(1*4)=67
67 % 10 = 7
So 104045-04-7 is a valid CAS Registry Number.

104045-04-7Relevant articles and documents

Identification of ACE pharmacophore in the phosphonopeptide metabolite K-26

Ntai, Ioanna,Bachmann, Brian O.

, p. 3068 - 3071 (2008/12/23)

The naturally occurring phosphonotripeptide K-26 is a potent angiotensin converting enzyme (ACE) inhibitor containing an α-amino phosphonic acid analogue of tyrosine. Previous studies have demonstrated that canonical peptide analogues of K-26 are micromolar inhibitors of ACE. To ascertain the structure-activity relationships in this class of ACE inhibitory natural products, K-26 and eight analogues were chemically synthesized and evaluated. Phosphonyl substitution was found to be the critical determinant of activity, resulting in a 1500-fold increase in ACE inhibition versus carboxyl analogues. Secondarily, the absolute configuration of the terminal α-amino phosphonate and N-acetylation were found to significantly modulate ACE inhibitory activity.

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