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191043-26-2

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191043-26-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 191043-26-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,1,0,4 and 3 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 191043-26:
(8*1)+(7*9)+(6*1)+(5*0)+(4*4)+(3*3)+(2*2)+(1*6)=112
112 % 10 = 2
So 191043-26-2 is a valid CAS Registry Number.

191043-26-2Relevant articles and documents

A new method for the synthesis of 5- and 6-membered 2-thioxo-1,3-O,N-heterocycles

Li, Ge,Ohtani, Takahito

, p. 2471 - 2474 (1997)

Various 1,3-oxazolidine-2-thiones and tetrahydro-1,3-oxazine-2-thiones are prepared by reacting hydrogen peroxide with a mixture of amino alcohols, carbon disulfide and base in a water-miscible organic solvent. The yields of the heterocyclic products are

Semisynthsis of novel sulfonamides, thioureas and biphenylsulfones as a new class of anticancer agents by using L-norephedrine as strategic starting material

Alqasoumi, Saleh I.,Alsaid, Mansour S.,Abdel-Kader, Maged S.,Ghorab, Mostafa M.

, p. 1183 - 1191 (2016/01/08)

In continuation of our work on synthesis of novel anticancer agents, a new series of sulfonamides carrying a biologically active thiourea 3, 4, biphenylsulfones bearing thiourea 8-10 and oxazole thione 11 were designed and synthesized using L-norephedrine

(S)-4-Isopropyl-5,5-dimethyl-1,3-oxazolidinethione as chiral auxiliary for the intramolecular sulfur transfer in α,β-unsaturated N-acylimides, promoted by NbCl5

Ortiz, Aurelio,Quintero, Leticia,Hernández, Hector,Maldonado, Sotero,Mendoza, Guadalupe,Bernès, Sylvain

, p. 1129 - 1132 (2007/10/03)

The 1,3-oxazolidinethione 4 has been synthesized from (S)-valine and used in the intramolecular sulfur transfer in its N-enoyl derivatives in the presence of NbCl5 as catalyst, which, moreover, works as an indicator of the course of the reactio

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