A white, crystalline substance, CH2(CO.NH)2.CO, derived from alloxantin, also from malonic acid and urea, and regarded as a substituted urea.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). barbituric acid. Retrieved September 25, 2026, from http://smartdefine.org/barbituric_acid/definitions/1978310 |
| Chicago | Webster's. 2011. "barbituric acid" http://smartdefine.org/barbituric_acid/definitions/1978310 (accessed September 25, 2026). |
| Harvard | Webster's 2011, barbituric acid, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/barbituric_acid/definitions/1978310>. |
| MLA | Webster's. "barbituric acid" 27 May 2011. Web. 25 September 2026. <http://smartdefine.org/barbituric_acid/definitions/1978310> |