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220227-05-4

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220227-05-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220227-05-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,2,2 and 7 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 220227-05:
(8*2)+(7*2)+(6*0)+(5*2)+(4*2)+(3*7)+(2*0)+(1*5)=74
74 % 10 = 4
So 220227-05-4 is a valid CAS Registry Number.

220227-05-4Downstream Products

220227-05-4Relevant articles and documents

The inclusion behavior of benzo-15-crown-5 with hydrated transition metal picrates

Ji, Baoming,Zhou, Zhixian,Ding, Kuiling,Li, Yanzhong

, p. 4327 - 4330 (1998)

Six kinds of benzo-15-crown-5 (L) adducts having the stoichiometric formula M(Pic)2 · L · xH2O (M=Mn, Cu, x=2; M=Co, Ni, Zn, Cd, x=4; Pic means picrate anion) have been synthesized and characterized by EA, IR, UV and molar conductance. The X-ray crystal structural analysis of the benzo-15-crown-5 adduct with hydrated copper(II) picrate revealed that the benzo-15-crown-5 molecule virtually acts as a second-sphere ligand, which associates with the copper(II) ion by hydrogen bonding of the coordinating water molecule. By the comparison of the IR, UV spectra and molar conductance of the new adducts prepared, it can be deduced that the other adducts exhibit the similar coordination environment to that of the copper adduct.

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