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Chemical name: D-Phenylalanine packs its value into the world of amino acids, shaping roles in nutritional supplements and research. Synonyms: D-Phe, (R)-2-Amino-3-phenylpropanoic acid. Appearance: This powder is white or nearly so—something anyone working with it will recognize on sight. Odor: Largely odorless, it won’t declare its presence by smell in a busy workspace. Uses: Runs the range from laboratory experiments to supplement blends. Chemical formula: C9H11NO2. Molecular weight: 165.19 g/mol.
Physical hazards: D-Phenylalanine doesn’t cause much trouble with flammability or instability, but no one should treat powders as harmless. Health risks: Inhalation of dust triggers nose, throat, or lung irritation. Swallowing it in small research doses rarely triggers urgent harm; large amounts, as with most chemicals, bring stomach problems or even more systemic troubles. Skin contact: Mild irritation sometimes arises in those with sensitivities. Eye contact: Dust particles prove annoying, causing redness or watering that reminds users about proper procedures. Environmental flags: Not seen as an acute water danger, though lab waste doesn’t belong in the drain.
Chemical composition: Consists of nearly pure D-Phenylalanine. Impurities: Reputable sources keep these low, favoring higher than 98% content for research and supplementation. Form: Solid, crystalline or powdered depending on the milling process. CAS number: 673-06-3.
Inhalation: Remove to fresh air right away. Irritation clears after a few deep, clean breaths. Skin: Wash with water and soap if irritation appears. Eyes: Rinse carefully with plenty of water, blinking to help clear any tiny dust. Ingestion: Rinse mouth; seek medical assistance if discomfort, nausea, or unexpected symptoms occur. Note: Medical professionals would want to know the substance involved for any deeper issues.
Sensitivity: D-Phenylalanine can burn, but won’t light up like an alkali metal or solvent. Extinguishing media: Regular measures do the job—water spray, foam, dry chemical. Risks: Decomposition in intense heat makes nasty fumes like nitrogen oxides or carbon oxides. Precautions: Firefighters should enter with standard breathing gear and avoid inhaling smoke or residue.
Containment: Scoop up spilled powder, wearing gloves and a dust mask. Clean-up: Wet wiping or vacuuming prevents airborne dust more safely than sweeping. Personal protection: Prioritize gloves, eye protection, and in cases of larger spills, dust filtering masks. Ventilation: Work in an area with decent airflow to keep particles from accumulating.
Safe handling: Minimize creating dust. Weighing or pouring calls for a gentle touch and steady hands. Don't eat or drink around the workspace. Labeling: Clear labeling takes the guesswork out for anyone opening a container days or months later. Storage: Cool, dry, and dark conditions keep the compound stable and pure. Incompatible materials: Strong acids and oxidizers usually don’t mix well with most organic solids, and D-Phenylalanine follows that tradition.
Ventilation: Fume hoods win the day for anyone doing repetitive handling of powders. Respiratory protection: N95 masks cut down inhalation risk, especially with large volumes. Skin: Gloves keep powder off skin, making hand-washing simpler. Eyes: Safety goggles keep accidental scratches and eye-watering at bay. Clothing: Lab coats or clean work shirts avoid bringing dust home.
Form: Crystalline powder. Color: Bright white, often a cue for purity. Melting point: Near 270°C. Solubility: Dissolves better in water at higher temperatures; low-moderate at room temp. Odor: Odorless. Stability: No dramatic reactivity at room temperature. pH: Neutral to slightly basic in solution.
Stability: D-Phenylalanine keeps for years if sealed well and stored cool, protected from air, heat, and humidity. Reactivity: Won’t jump into reactions without prompting; sensitive only with strong oxidizers or acids. Decomposition products: Heat or burning unlocks carbon monoxide, carbon dioxide, nitrogen oxides. Avoid: Open flames, strong oxidizing chemicals.
Acute toxicity: Not flagged as highly toxic. Inhalation: Irritation is usually the main issue with accidental dust exposure. Skin or eyes: Temporary, minor irritation for most individuals. Chronic effects: Generally low-risk for healthy adults; those with certain metabolic conditions (PKU) should avoid any phenylalanine source. Sensitization: Rare, but always possible after repeated or prolonged skin contact. Carcinogenicity: Not listed by agencies by current research standards.
Persistence: An amino acid doesn’t stick around as a pollutant, but dumping lab quantities wastes raw material and could disrupt local wastewater treatment. Aquatic toxicity: Not expected to poison aquatic life at typical concentrations. Bioaccumulation: Low potential.
Waste methods: Seal up and dispose through a chemical waste program, not down the sink or in regular trash. Regulations: Many areas treat amino acids as non-hazardous, but local rules may trump general guidelines for chemical disposal. Containers: Wash and recycle or dispose; do not reuse for food.
Shipping: D-Phenylalanine doesn’t meet criteria for hazardous transport; solid packs ship without special labels. Spill response: Package against friction and pressure, use tight containers to avoid dusting during transit. Incompatibilities: Keep from mixing with acids and oxidizers during shipping.
Classification: Not under tight restriction for most countries when used and stored responsibly. Workplace requirements: OSHA or similar agencies recommend standard chemical handling because dust of any sort can irritate. Labeling: Regulations often ask for clear hazard marking, even on low-toxicity powders.
