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1331753-65-1

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1331753-65-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1331753-65-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,3,1,7,5 and 3 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1331753-65:
(9*1)+(8*3)+(7*3)+(6*1)+(5*7)+(4*5)+(3*3)+(2*6)+(1*5)=141
141 % 10 = 1
So 1331753-65-1 is a valid CAS Registry Number.

1331753-65-1Upstream product

1331753-65-1Relevant articles and documents

Towards peptide-substituted titanocene anticancer drugs

Zagermann, Johannes,Deally, Anthony,Metzler-Nolte, Nils,Mueller-Bunz, Helge,Wallis, Denise,Tacke, Matthias

, p. 2387 - 2390 (2011/10/10)

An alkyne-substituted fulvene was transformed via hydridolithiation followed by transmetallation with titanium tetrachloride into bis-[p-(prop-2-ynyloxy)-benzyl-cyclopentadienyl] titanium(IV) dichloride. Single crystals of this titanocene derivative could be obtained and the structure determined by X-ray diffraction. It showed that this compound crystallises in the space group C2/c with four molecules in the monoclinic cell. The alkyne-substituted titanocene dichloride derivative was then subject to a copper-catalysed azide-alkyne cycloaddition with its azide-functionalised methylester-protected phenylalanine reaction partner in order to form a linking triazole. This reaction was performed under anhydrous conditions employing a dichloromethane/acetonitrile solvent mixture with copper(I) iodide and 2,6-lutidine as the catalyst system. Under these conditions the adduct between the protein mimic and the titanocene was formed without hydrolysing the titanium dichloride moiety.

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