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918411-57-1

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918411-57-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 918411-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,1,8,4,1 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 918411-57:
(8*9)+(7*1)+(6*8)+(5*4)+(4*1)+(3*1)+(2*5)+(1*7)=171
171 % 10 = 1
So 918411-57-1 is a valid CAS Registry Number.

918411-57-1Downstream Products

918411-57-1Relevant articles and documents

Zinc thiolate complexes [ZnLn(SR)]+ with azamacrocyclic ligands: Synthesis and structural properties

Notni, Johannes,Goerls, Helmar,Anders, Ernst

, p. 1444 - 1455 (2007/10/03)

A series of 24 novel zinc thiolate complexes containing saturated macrocyclic polyamine ligands with the general formula [Zn(Ln)(SR)] ClO4 (Ln: n-dentate azamacrocyclic ligand) has been synthesized. Two different thiolate ligands (R = phenyl, benzyl) and 12 macrocyclic ligands with ring sizes varying from 11 to 16 atoms and containing three, four, and five nitrogen donors (including a new macrocyclic triamine ligand, 8-methyl-[11]aneN3) have been used. The solid-state structures of 20 of the 24 complexes have been characterized by X-ray diffraction. The crystal lattice of all compounds is comprised exclusively of monomers. The tetracoordinate N3S compounds exhibit Zn-S bond lengths ranging from 2.2259(5) to 2.2492(9) A and the pentacoordinate N 4S systems from 2.266(2) to 2.3200(7) A. In addition, two complexes with the very rare N5S coordination environment for zinc have been found. They exhibit Zn-S bond lengths of 2.3782(7) and 2.42 A (mean value of two independent molecules). The thiolate complexes are suitable model systems for the precursor proteins of matrix metalloproteases (pro-MMPs) as well as for thiolate alkylating enzymes such as cobalamine-dependent/ independent methionine synthases, farnesyl transferase, and the Ada repair protein. Wiley-VCH Verlag GmbH & Co. KGaA, 2006.

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