| abstract |
The present invention relates to chemical compositions capable of detecting blood, which provide a visual signal in the form of a color change. The compositions comprise a chromatic oxidizable indicator and a peroxide or a per-acid and a stabilizer that is selected from cyclodextrin, nitrona or combinations thereof. These compositions are useful as ingredients of sanitary articles for the prediction of the approach of menstruation by providing a visual signal due to the detection of blood before the blood is contained in these articles in visually discernible quantities. |