D-Tyrosine CAS 556-02-5

1. D-Tyrosine CAS 556-02-5 is the D-isomer of the amino acid tyrosine and is widely used in biochemical and pharmacological research to study stereospecific biological interactions and enzyme mechanisms .
2. D-Tyrosine serves as a precursor for important neurotransmitters like dopamine, norepinephrine, and epinephrine, making it valuable in research focused on mood enhancement, cognitive function, and stress management .
3. D-Tyrosine negatively regulates melanin synthesis by inhibiting tyrosinase activity, and also inhibits biofilm formation while triggering the self-dispersal of bacterial biofilms without suppressing bacterial growth .
4. Researchers utilize D-Tyrosine in dermatological studies for skin pigmentation and UV protection, in sports nutrition research for potential performance improvement, and as a building block in pharmaceutical development for conditions like depression and anxiety .

1. D-Tyrosine CAS 556-02-5 must be stored in a tightly sealed container in a cool, dry, and well-ventilated environment; powder form is stable for up to 3 years at -20°C or 2 years at 4°C .
2. D-Tyrosine is classified with hazard codes Xi and risk phrases R36/37/38 (Irritating to eyes, respiratory system, and skin), with hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation) .
3. Personnel must wear chemical-resistant gloves, safety goggles with side-shields, and protective clothing when handling D-tyrosine, avoiding formation of dust and aerosols, and ensuring adequate ventilation in work areas .
4. Keep away from incompatible materials such as strong oxidizing agents; store at RT (room temperature) ; for solution storage, prepare aliquots in tightly sealed vials and use within 1 month at -20°C, avoiding repeated freeze-thaw cycles .

1. Isolate the spill area, ensure adequate ventilation, and wear full personal protective equipment including chemical-resistant gloves, safety goggles, and suitable dust respirator when D-tyrosine CAS 556-02-5 is released .
2. Collect D-Tyrosine by sweeping or vacuuming without creating dust using non-sparking tools, and place into suitable closed containers for disposal.
3. Avoid creating dust clouds during cleanup to prevent respiratory exposure; ventilate area and wash spill site after material pickup is complete .
4. Dispose of collected material according to local, state, and federal environmental regulations; consult with state and local regulations for proper disposal methods .

1. D-Tyrosine CAS 556-02-5 is not classified as highly flammable (NFPA fire rating of 0-1) but may decompose under fire conditions, with a melting point >300°C .
2. Use water spray, dry chemical powder, carbon dioxide, or alcohol-resistant foam to extinguish fires involving the product; firefighters should wear PPE and SCBA with full facepiece operated in positive pressure mode .
3. Hazardous D-Tyrosine decomposition products formed under fire conditions include toxic fumes of carbon monoxide, carbon dioxide, and nitrogen oxides (NOx) .
4. During combustion, may emit irritant and toxic fumes; move containers from the fire area if safe to do so, and contain fire runoff to prevent environmental contamination.