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54807-44-2

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54807-44-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 54807-44-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,4,8,0 and 7 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 54807-44:
(7*5)+(6*4)+(5*8)+(4*0)+(3*7)+(2*4)+(1*4)=132
132 % 10 = 2
So 54807-44-2 is a valid CAS Registry Number.

54807-44-2Downstream Products

54807-44-2Relevant articles and documents

Selective Cadmium Fluorescence Probe Based on Bis-heterocyclic Molecule and its Imaging in Cells

Hagimori, Masayori,Karimine, Yasushi,Mizuyama, Naoko,Hara, Fumiko,Fujino, Takeshi,Saji, Hideo,Mukai, Takahiro

, p. 1161 - 1167 (2021)

Fluorescence probes that selectively image cadmium are useful for detecting and tracking the amount of Cd2+ in cells and tissues. In this study, we designed and synthesized a novel Cd2+ fluorescence probe based on the pyridine-pyrimidine structure, 4-(methylsulfanyl)-6-(pyridin-2-yl)pyrimidin-2-amine (3), as a low-molecular-weight fluorescence probe for Cd2+. Compound 3 could successfully discriminate between Cd2+ and Zn2+ and exhibited a highly selective turn-on response toward Cd2+ over biologically related metal ions. The dissociation constant (Kd) and the limit of detection (LOD) of 5.4 × 10? 6?mol L? 1 and 4.4 × 10? 7?mol L? 1, respectively, were calculated using fluorescence titration experiments. Studies with closely related analogs showed that the bis-heterocyclic moiety of 3 acted as both a coordination site for Cd2+ and a fluorophore. Further, the methylsulfanyl group of compound 3 is essential for achieving selective and sensitive Cd2+ detection. Fluorescence microscopy studies using living cells revealed that the cell membrane permeability of compound 3 is sufficient to detect intracellular Cd2+. These results indicate that novel bis-heterocyclic molecule 3 has considerable potential as a fluorescence probe for Cd2+ in biological applications.

The use of α ketoketene S,S diacetals for a novel pyrimidine synthesis

Chauhan,Junjappa

, p. 880 - 882 (2007/10/05)

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