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100790-03-2

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100790-03-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 100790-03-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,7,9 and 0 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 100790-03:
(8*1)+(7*0)+(6*0)+(5*7)+(4*9)+(3*0)+(2*0)+(1*3)=82
82 % 10 = 2
So 100790-03-2 is a valid CAS Registry Number.

100790-03-2Relevant articles and documents

Chemistry of Sulfenic Acids. 7. Reason for the High Reactivity of Sulfenic Acids. Stabilization by Intramolecular Hydrogen Bonding and Electronegativity Effects

Davis, Franklin A.,Jenkins, Linda A.,Billmers, Robert L.

, p. 1033 - 1040 (2007/10/02)

It is proposed that the reason sulfenic acids (RSOH) are so reactive and usually not isolated or even detected is that they form thiosulfinates (RS(O)SR) so readily.This is a consequence of the sulfenic acid hydrogen-bonded dimer, 1, which lowers the energy of activation for thiosulfinate formation.The stability of the few sulfenic acids that have been isolated can be explained in terms of steric, electronic, and intramolecular hydrogen-bonding effects which prevent dimer formation.The importance of these effects on the stability of simple unstable sulfenic acids was demonstrated by flash vacuum pyrolysis (FVP) and the thiosulfinate/vinyl sulfoxide ratio.A novel, high yield, rearrangement of sulfenic acid 19f to 1,3-benzothiazine 26 was observed.

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