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97272-98-5

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97272-98-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 97272-98-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,7,2,7 and 2 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 97272-98:
(7*9)+(6*7)+(5*2)+(4*7)+(3*2)+(2*9)+(1*8)=175
175 % 10 = 5
So 97272-98-5 is a valid CAS Registry Number.

97272-98-5Relevant articles and documents

Synthesis and Structure of 2,3-Disubstituted 1,2-Thiazetidine 1,1-Dioxides

Meyle, Eberhard,Keller, Egbert,Otto, Hans-Hartwig

, p. 802 - 812 (2007/10/02)

2-Alkylamino-2-phenylethanesulfonic acids 3 are prepared from sodium 2-phenylethenesulfonate (2).Compounds 3 are chlorinated and cyclized to yield the title compounds 5.Their structures are characterized by IR and NMR spectroscopy and compared to those of analogous β-lactams.An X-ray analysis of the β-sultam 5d establishes the proposed structure.

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