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121958-41-6

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121958-41-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 121958-41-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,1,9,5 and 8 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 121958-41:
(8*1)+(7*2)+(6*1)+(5*9)+(4*5)+(3*8)+(2*4)+(1*1)=126
126 % 10 = 6
So 121958-41-6 is a valid CAS Registry Number.

121958-41-6Relevant articles and documents

Synthesis of Tetrahydroquinoline-Embedded Bridged Benzothiaoxazepine-1,1-dioxides

Borgohain, Hemi,Devi, Runjun,Dheer, Divya,Borah, Biraj Jyoti,Shankar, Ravi,Das, Sajal Kumar

supporting information, p. 6671 - 6679 (2017/12/07)

A diastereoselective synthesis of previously unknown tetrahydroquinoline-containing bridged benzothiaoxazepine-1,1-dioxides is presented. The three-step protocol uses readily available N-aryl-2-fluorobenzenesulfonamides and trans-2,3-epoxy-cinnamyl-alcohol-derived tosylates as the starting materials, involves N-alkylation of sulfonamides, intramolecular epoxide ring-opening, and SNAr reactions as the reaction steps, and requires only one chromatographic purification to access the desired products in good overall yields.

Synthese optisch aktiver Phosphane via Sharpless-Epoxidierung

Brunner, Henri,Sicheneder, Adolf

, p. 730 - 731 (2007/10/02)

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