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1443677-71-1

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1443677-71-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1443677-71-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,4,3,6,7 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1443677-71:
(9*1)+(8*4)+(7*4)+(6*3)+(5*6)+(4*7)+(3*7)+(2*7)+(1*1)=181
181 % 10 = 1
So 1443677-71-1 is a valid CAS Registry Number.

1443677-71-1Downstream Products

1443677-71-1Relevant articles and documents

Synthesis and structures of hypervalent organoantimony and organobismuth chlorides containing asymmetric C,E,C-chelating (E = O, S) ligands

Tan, Nianyuan,Chen, Yi,Yin, Shuang-Feng,Qiu, Renhua,Zhou, Yongbo,Au

, p. 9476 - 9481 (2013)

Two asymmetric tridentate C,E,C-chelating ligand precursors, 1-Br-2-[(2′-BrC6H4CH2E)CH 2]C10H6 (E = O (1), E = S (2), were prepared in good yield. Lithiation of the two precursors was achieved by a reaction with n-BuLi, and was followed by treatment with SbCl3 or BiCl3 in a 1:1 molar ratio to give four air-stable hypervalent organoantimony and organobismuth chlorides with an asymmetric C,E,C-chelating ligand (E = O, S), i.e. (C6H4CH2OCH2C 10H6)SbCl (3), (C6H4CH 2SCH2C10H6)SbCl (4), (C 6H4CH2OCH2C10H 6)BiCl (5) and (C6H4CH2SCH 2C10H6)BiCl (6). These compounds were characterized by NMR spectroscopy, elemental analysis and melting point determination. X-ray structure analysis of compounds 3-6 revealed that the donor atoms (O, S) are strongly coordinated to the metal atoms (Sb, Bi). Compounds 3-6 exhibit chirality and crystallize as racemic mixtures. The Royal Society of Chemistry 2013.

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