Chem. Also thymine. [f. THYM(IC a.1 + -IN1.] A colorless crystalline alloxur base, C5H6N2O2, obtained by the action of dilute sulphuric acid on thymic acid (THYMIC a.1 2).
1894. Jrnl. Chem. Soc., LXVI. I. 156. Thymic acid on heating with sulphuric acid , thymin is formed. This substance has neither basic nor acidic properties; it is deposited from water in quadratic and hexagonal crystals.
1898. Schäfers Text Bk. Physiol., I. 66.
1900. Jrnl. Chem. Soc., LXXVIII. I. 319. Thymin was originally described by Kossel as one of the decomposition products of the nucleic acid of the thymus gland. It has since been obtained from nucleic acid from other sources.
1903. Amer. Chem. Jrnl., XXIX. 481. On boiling this mercapto derivative with hydrochloric acid we obtained thymine.
Hence Thyminic a. Chem. in thyminic acid, a synonym of thymic acid (THYMIC a.1 2).
1898. Mandel, trans. Hammarstens Physiol. Chem., 100. From adenylic acid and other nucleic acids Kossel and Neumann have prepared an acid called by them thyminic acid.