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18099-26-8

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18099-26-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 18099-26-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,8,0,9 and 9 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 18099-26:
(7*1)+(6*8)+(5*0)+(4*9)+(3*9)+(2*2)+(1*6)=128
128 % 10 = 8
So 18099-26-8 is a valid CAS Registry Number.

18099-26-8Relevant articles and documents

STUDIEN ZUM VORGANG DER WASSERSTOFFUEBERTRAGUNG 64. ELECTROREDUCTIVE SPALTUNG VON ARYLSULFONSAEUREDERIVATEN UND ARYLSULFONEN MIT ALKALI-AMALGAMEN

Horner, Leopold,Schmitt, Rolf-Erhard

, p. 301 - 308 (2007/10/02)

Arylsulfonylchlorides, n-hexylarylsulfonates and di-aryl sulfones (ArSO2Y; Y=Cl, OC6H13, Ar') were cleaved under standard conditions by alkali metal amalgams (M/Hg; M=Li, Na, K) to the corresponding sulfinate salts (ArSO2M) and MY, as shown in Eq. 1.The substrates ArSO2Y in toluene were not cleaved by Li/Hg alone; first on addition of an equimolar amount of i-propanol could conversions of almost 100percent be achieved. (Tables I,II,III).A series of six n-hexylarylsulfonates were studied under standard conditions, to establish the influence of the reaction medium and the amalgam on the course of reaction, (Table II).The sterically hindered arylsulfonates ArSO2OC6H13, (Ar= mesityl, 2,4,6-tri-isopropyl) were "anomalous", i.e. underwent fission at the ring/sulfur bond , as shown by Eq. 2.Table III describes the reductive fission of mesityl-phenylsulfone and dimesitylsulfone.

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