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217790-69-7

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217790-69-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 217790-69-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,7,9 and 0 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 217790-69:
(8*2)+(7*1)+(6*7)+(5*7)+(4*9)+(3*0)+(2*6)+(1*9)=157
157 % 10 = 7
So 217790-69-7 is a valid CAS Registry Number.

217790-69-7Downstream Products

217790-69-7Relevant articles and documents

Platinum (II) and palladium (II) complexes derived from the anion of sulfathiazole; Crystal structure of cis- [Pt (stz) 2 (PPh3) 2] · 3CHCl3

Henderson, William,McCaffrey, Louise J.,Dinger, Maarten B.,Nicholson, Brian K.

, p. 3137 - 3144 (2008/10/09)

Reaction of the complexes cis- [PtCl2L2] [L = PPh3 or L2 = 1,1′-bis (diphenylphosphino) ferrocene (dppf) ] , or [PdCl2 (phen) ] [phen = 1,10-phenanthroline] with two mole equivalents of sulfathiazole (stzH) in methanol with excess triethylamine yields the complexes cis- [M (stz) 2L2] in good yields. The complexes have been characterised by elemental microanalysis, together with infrared, 1H and 31P NMR spectroscopies. A single-crystal X-ray structure determination on the complex cis- [Pt (stz) 2 (PPh3) 2] 3a shows that both stz ligands coordinate via the thiazole nitrogen atoms. Using positive-ion electrospray mass spectrometry (ESMS) all complexes yield strong molecular ions [M+H] + at low cone voltages. At higher cone voltages, loss of one stz ligand occurs, giving [L2M (stz) ] + ions. The complex cis- [PtCl (stz) (PPh3) 2] 4 was also prepared using a 1 : 1 mole ratio of reactants. Functionalisation of both primary arylamine groups of 3a can be accomplished using either acetic anhydride or trifluoroacetic anhydride, in pyridine solvent, and the derivatives 5 were characterised by 31P NMR spectroscopy, elemental analysis and ESMS.

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