N9
NutriHerb
≥ 98.5%
| Availability: | |
|---|---|
Basic Information
Product Description
L-Tyrosine (CAS 60-18-4) is a naturally occurring, non-essential amino acid present in proteins and a precursor to important biochemical compounds. It appears as a white to pale-brown crystalline powder with stable properties and defined physical characteristics.
L-Tyrosine is widely used in biochemical research, nutrition formulation and industrial applications that require high-purity amino acid feedstock.

| Product Name | L-Tyrosine Powder | Purity | ≥ 98.5% |
| Standard | USP / EP / BP | Appearance | White crystalline powder |
| Grade | Food Grade | Shelf Life | 24 months |
Function and Application
Essential building block in protein synthesis.
Precursor to neurotransmitters such as dopamine and norepinephrine.
Used in nutritional applications and biochemical assays.
L-Tyrosine has a variety of uses in chemistry, biochemistry, and nutrition:
Used as a standard amino acid in protein synthesis and cell culture studies.
Common reagent in biochemical research kits.
L-Tyrosine is converted in the body into catecholamine neurotransmitters such as dopamine, norepinephrine and other.
It is also a precursor for melanin and thyroid hormones (in broader pathways).
As an amino acid building block, tyrosine can be used in formulation of nutritional supplements and fortified foods.
It appears naturally in many protein-rich foods (e.g., dairy, meat, grains).
Used in cosmetic applications for skin conditioning and related formulations under controlled conditions.
FAQ
Q1: Can I get some samples?
A1: Yes. We usually provide 20-50g samples free of charge.
Q2: What is your MOQ?
A2: Our MOQ is flexible. Trial orders of 1-10kg are acceptable, and the standard MOQ for formal orders is 25kg.
Q3: How long is the production and delivery time?
A3: The lead time is about one week after payment is confirmed. Lead times for customized products can be discussed further.
Q4: How do you deliver the goods?
< 50kg: shipped by FedEx, DHL, or other express couriers
≥ 100kg: shipped by air
≥ 100kg: shipped by sea
We can also arrange shipping according to your preference.
Q5: What is the shelf life of your products?
A5: The shelf life is 24-36 months, as stated on the COA.
Q6: How can I pay for my order?
A6: We accept T/T in advance, L/C, D/P, or other terms upon negotiation.
Q7: How do you control product quality?
A7: Our products undergo strict quality control throughout the entire process, including inspection by the National Commodity Inspection & Testing Bureau, accredited third-party labs, our internal QA team, and certifications such as ISO, Halal, and Kosher.
Q8: Do you accept ODM or OEM services?
A8: Yes. We provide ODM and OEM services for softgels, capsules, tablets, sachets, granules, private label products, and more. Contact us to design your own branded product.
Sample
Product Parameters
| ITEM | SPECIFICATION |
| Appearance | White crystals or crystalline powder |
| Loss on drying | ≤0.20% |
| Residue on ignition | ≤0.10% |
| Specific optical rotation[a]D20° | -11.3° ~-12.1° |
| Particle Size | 98% pass 20 mesh |
| PH | 5.0~6.5 |
| Tansmittance | ≥95% |
| Heavy metals (Pb) | ≤10ppm |
| Ammonium (as NH4) | ≤200ppm |
| As | ≤1ppm |
| Pb | ≤3ppm |
| Cd | ≤1ppm |
| Hg | ≤0.1ppm |
| Iron | ≤10ppm |
| Chloride(C1) | ≤0.02% |
| Sulfate(SO4) | ≤0.02% |
| L-Tyrosine | 99% ~100.5% |
| Total Plate Count | ≤ 1000 cfu/g |
| Yeast&Mold | ≤ 100 cfu/g |
| Coliforms | Negative/25g |
| E Coli | Negative |
| Salmonella | Negative/25g |
| S.Aureus | Negative/25g |
| Packing | Pack in paper-drums and two food grade poly bags inside. Net weight: 25kg/drum |
| Storage condition | Store in sealed containers at cool & dry place.protect from light,moisture and pest infestation. |
| Shelf life | Two years when properly stored. |
Delivery:Sea/Air Shipping & International Express
Shipping Time: Within a week after payment
Package: 1-5kg/Aluminum foil bag, size: 22cm (Width)*32cm (Length)
15-25kg/Drum, size: 38cm (Diameter)*50cm (Height)
Storage: Kept away from strong light and heat.
Shelf Life: 24 months
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