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
3-Nitrobenzoic acid 3-Nitrobenzoic acid 3-Nitrobenzoic acid is an organic compound with the formula CH(NO)COH. It is an aromatic compound and under standard conditions, it is an off-white solid. The two substituents are in a meta position with respect to each other, giving the alternative name of m-Nitrobenzoic acid. This compound can be useful as it is a precursor to 3-aminobenzoic acid, which is used to prepare some dyes. It is prepared by nitration of benzoic acid at low temperatures. Both 2-Nitrobenzoic acid and 4-Nitrobenzoic acid are produced as side products, with yields of approximately 20% and 1.5% respectively. Since carboxylic acid functional