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1258542-44-7

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1258542-44-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1258542-44-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,8,5,4 and 2 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1258542-44:
(9*1)+(8*2)+(7*5)+(6*8)+(5*5)+(4*4)+(3*2)+(2*4)+(1*4)=167
167 % 10 = 7
So 1258542-44-7 is a valid CAS Registry Number.

1258542-44-7Downstream Products

1258542-44-7Relevant articles and documents

Novel emissive phenylurea-based macrocyclic chemosensor: Synthesis, fluorescent and complexation studies

Nunez, Cristina,Aldrey, Anxela,Garcia, Veronica,Bastida, Rufina,MacIas, Alejandro,Lodeiro, Carlos

, p. 85 - 94 (2012/04/23)

A new emissive macrocycle ligand bearing three phenylurea groups (L 1) has been synthesized and fully characterised. Several mononuclear complexes with nitrate, perchlorate and tetrafluoroborate salts of transition and post-transition metals (Cu2+, Ni2+, Co2+, Zn2+ and Cd2+) were synthesized and characterised. For comparative purposes, the coordination ability of two nonfluorescent macrocyclic ligands (L2 and L3) containing three nitrophenylurea pendant-arms towards the same metal ions were studied. The interaction with transition and post-transition metal ions, and anions was explored in solution by UV-Vis and emission spectroscopy with ligand L1. All new compounds were characterised by microanalysis, IR, UV-Vis and fluorescence emission, FAB and ESI mass spectrometry and conductivity measurements.

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