Overview
5-Aminoorotic acid is a pyrimidine derivative that serves as an important intermediate in nucleotide metabolism and synthesis. As a modified orotic acid compound, it plays a role in biochemical research related to nucleic acid biosynthesis pathways. The compound was first characterized in mid-20th century biochemical studies investigating pyrimidine metabolism. Its structural similarity to orotic acid makes it valuable for studying enzymatic processes in nucleotide synthesis, particularly in research applications investigating metabolic disorders.
Physical and Chemical Properties
5-Aminoorotic acid presents as a white crystalline solid with limited solubility characteristics. The compound shows stability under standard laboratory conditions but may decompose at high temperatures (>300°C). Its molecular structure contains both amino and carboxylic acid functional groups, making it amphoteric. The compound's UV absorption spectrum shows characteristic peaks useful for analytical identification. In solution, it exhibits pH-dependent solubility, with increased solubility in alkaline conditions due to deprotonation of the carboxylic acid group. The amino group at the 5-position distinguishes it from orotic acid and influences its biochemical reactivity.
Main Applications
In pharmaceutical research, 5-aminoorotic acid serves as a building block for more complex nucleotide analogs. It finds application in developing compounds that may modulate nucleic acid metabolism, with potential therapeutic implications for metabolic disorders. The biochemical research sector utilizes this compound as a tool compound to study nucleotide synthesis pathways. Research laboratories employ it to investigate enzymatic processes involving dihydroorotate dehydrogenase and other pyrimidine metabolism enzymes. Some specialized applications include radiolabeled versions for tracer studies in metabolic research.
Safety and Storage
As a research chemical, 5-aminoorotic acid requires standard laboratory safety precautions. While not classified as highly hazardous, appropriate personal protective equipment (gloves, lab coat, eye protection) should be used when handling the powder form to prevent irritation. For long-term storage, the compound should be kept in airtight containers with desiccant packs to prevent moisture absorption. Storage temperatures between 2-8°C are recommended for extended stability. The material should be segregated from strong acids, bases, and oxidizing agents in storage areas to prevent potential reactions.
B2B Procurement Guide
When sourcing 5-aminoorotic acid for commercial or research purposes, buyers should specify purity requirements based on intended use. Pharmaceutical applications typically require ≥99% purity with full analytical documentation, while research-grade material may be suitable at 95-98% purity. Reliable suppliers should provide certificates of analysis (COA) including HPLC purity data, residual solvent content, and heavy metal specifications. For GMP applications, verify the supplier's quality systems and documentation practices. Bulk procurement (100g+) may offer significant cost savings compared to small research quantities.
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