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149944-33-2

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149944-33-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 149944-33-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,9,4 and 4 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 149944-33:
(8*1)+(7*4)+(6*9)+(5*9)+(4*4)+(3*4)+(2*3)+(1*3)=172
172 % 10 = 2
So 149944-33-2 is a valid CAS Registry Number.

149944-33-2Relevant articles and documents

Expedient synthesis of sulfinamides from sulfonyl chlorides

Harmata, Michael,Zheng, Pinguan,Huang, Chaofeng,Gomes, Maria G.,Ying, Weijiang,Ranyanil, Kanok-On,Balan, Gayatri,Calkins, Nathan L.

, p. 683 - 685 (2007/10/03)

Sulfinamides were synthesized from sulfonyl chlorides using a procedure involving in situ reduction of sulfonyl chlorides. The reaction is broad in scope and easy to perform.

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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