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140658-13-5

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140658-13-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 140658-13-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,0,6,5 and 8 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 140658-13:
(8*1)+(7*4)+(6*0)+(5*6)+(4*5)+(3*8)+(2*1)+(1*3)=115
115 % 10 = 5
So 140658-13-5 is a valid CAS Registry Number.

140658-13-5Relevant articles and documents

Synthesis of the first stable pentaco-ordinate 1,2-thiaphosphetene

Kawashima, Takayuki,Iijima, Tomonori,Kikuchi, Hironobu,Okazaki, Renji

, p. 149 - 152 (2007/10/03)

Pentacoordinate 1,2-thiaphosphetenes bearing the Martin ligand were synthesized by the reaction of the corresponding phosphorus ylide with isothiocyanates. Their mass and NMR spectral data showed that they have 1:2 adducts of the phosphorus ylide and isothiocyanates, which have a distorted trigonal bipyramid with oxygen and sulfur atoms at the apical positions. Thermolysis of the phenyl isothiocyanate adduct gave the corresponding cyclic thiophosphinate as a phosphorus-containing product in almost quantitative yield.

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