Vinegar test dry ice. Vinegar highlights tumors, which have more DNA, and therefore less water and more protein, than healthy tissue. As of 2011, Thailand has adopted the technique in twenty-nine of its (then) seventy-five provinces, and 500,000 women have been tested at least once. The vinegar test does have important limitations and disadvantages for cervical cancer screening, as well; please refer to that section in the main Cervical_screening article. Vinegar test Vinegar test is a cervical cancer testing method that uses acetic acid, a major component of vinegar. It has been found to be useful as an effective and inexpensive screening
Dihydroxymalonic acid heated with urea to 100 °C, it forms allantoin. By continued boiling of its aqueous solution it is decomposed into carbon dioxide and glyoxylic acid. Dihydroxymalonic acid Dihydroxymalonic acid is an organic compound with formula CHO or HO-(C=O)-C(OH)-(C=O)-OH, found in some plants such as alfalfa and in beet molasses. The compound may also be called dihydroxymesoxalic acid, dihydroxypropanedioic acid. It can be viewed as a hydrate derivative of mesoxalic acid, and indeed it is often called mesoxalic acid monohydrate and other silmilar names. This compound is unusual in containing stable geminal hydroxy groups. Dihydroxymalonic acid is a water-soluble white solid.