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3-benzyltetrahydro-1,4,3-oxathiazine 4,4-dioxide is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

21805-25-4

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21805-25-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21805-25-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,8,0 and 5 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 21805-25:
(7*2)+(6*1)+(5*8)+(4*0)+(3*5)+(2*2)+(1*5)=84
84 % 10 = 4
So 21805-25-4 is a valid CAS Registry Number.

21805-25-4Relevant academic research and scientific papers

A Convenient Synthesis of 5-Substituted Tetrahydro-1,4,3-oxathiazine 4,4-Dioxides

Grunder-Klotz, Evelyne,Humbert, Paul,Ehrhardt, Jean-Daniel

, p. 733 - 742 (2007/10/02)

An adventageous one pot procedure for the synthesis of tetrahydro-1,4,3-oxathiazine 4,4-dioxides by dialkylation of readily available α,N-alkyl or arylsulfonamide dianions with gaseous formaldehyde is reported.Stability and some reactions of these heterocycles are also described.

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