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53347-31-2

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53347-31-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53347-31-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,3,4 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 53347-31:
(7*5)+(6*3)+(5*3)+(4*4)+(3*7)+(2*3)+(1*1)=112
112 % 10 = 2
So 53347-31-2 is a valid CAS Registry Number.

53347-31-2Upstream product

53347-31-2Relevant articles and documents

Li+ selective podand-type fluoroionophore based on a diphenyl sulfoxide derivative bearing two pyrene groups

Nishimura, Yukihiro,Takemura, Tetsuo,Arai, Sadao

, p. 6844 - 6857 (2011)

New podand-type fluoroionophores having two pyrene moieties: 2,2′-bis(1-pyrenylacetyloxy)diphenyl sulfide (3), 2,2-bis(1- pyrenylacetyloxy)diphenyl sulfoxide (4), and 2,2-bis(1-pyrenylacetyloxy) diphenyl sulfone (5), have been synthesized by connecting two 1-pyrenecarbonylmethyl groups with the two hydroxy groups of 2,2-dihydroxydiphenyl sulfide, sulfoxide, and sulfone, respectively. Their complexation behavior toward alkali metal ions was examined by fluorescence spectroscopy. Among these fluoroionophores, compound 4, having a sulfinyl group, showed high selectivity toward Li+.

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