This compound is a high-efficiency peptide coupling additive widely utilized in pharmaceutical and biotech R&D, especially in solid-phase and solution-phase peptide synthesis. Its core function is to suppress amino acid racemization during amide bond formation, significantly enhancing chiral purity and reaction yield compared to traditional additives like HOBt. It is indispensable for synthesizing complex peptides, cyclic peptides, and peptide-based drugs (e.g., protease inhibitors, antimicrobial peptides, and cancer immunotherapeutics), ensuring structural integrity and biological activity. In organic synthesis, it serves as a versatile condensation reagent for constructing amides, esters, and heterocyclic compounds, facilitating mild and efficient bond formation under room temperature or low-heat conditions. It also plays a critical role in bioconjugation and fluorescent probe development, enabling site-specific labeling of proteins, nucleic acids, and antibodies for imaging, diagnostics, and targeted therapy research. Additionally, it acts as a key intermediate in the production of specialty chemicals and chiral catalysts, supporting the synthesis of high-value-added products in the fine chemical and agrochemical sectors.

This chemical is classified as a moderately hazardous irritant with GHS hazard statements H315 (Causes skin irritation), H318 (Causes serious eye damage), H335 (May cause respiratory irritation), and H360D (May damage fertility or the unborn child). Direct skin contact may lead to redness, swelling, and severe inflammation; prolonged or repeated exposure can cause allergic dermatitis or chemical burns, requiring immediate rinsing with plenty of water and medical attention. Eye contact poses a high risk of corneal injury and permanent vision impairment; irrigate eyes continuously with copious water for at least 15 minutes and seek emergency medical care immediately. Inhalation of dust or fine particles may irritate the respiratory tract, causing coughing, chest tightness, or shortness of breath; high concentrations can trigger asthma-like reactions, necessitating handling only in a well-ventilated fume hood with a dust respirator. Ingestion may cause severe gastrointestinal pain, nausea, vomiting, and organ damage; do not induce vomiting and seek prompt medical treatment. During industrial handling, wear full protective gear including chemical-resistant gloves, safety goggles, face shield, and protective clothing; store in a sealed, dry, cool (2–8 °C) dark place, away from moisture, oxidants, heat sources, and incompatible substances like strong bases. Dispose of waste materials in accordance with local hazardous waste regulations; avoid release into the environment to prevent potential water and soil contamination, and harmful impacts on aquatic and terrestrial organisms.