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High Purity 99% D-Tyrosine Powder CAS 556-02-5 Chiral Amino Acid Supplier

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Unit Price:

$6500-7000/MT FOB

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CAS No.:

556-02-5

Grade:

Industrial Grade

Content:

99%

Port:

Qingdao

Brand:

Packaging:

25 KG PAPER DRUM

Sample Available:

Yes

Price valid (until):

2027-05-31

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Shandong Guozhao Import and Export Co., Ltd.

Company Type:

Distributor

Location:

China

Qualification:

Main Products:

CHEMICALS

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Product Details
Seller Information
Inquiry History

Description

Product Description

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Abstract

D-Tyrosine, chemically named (R)-2-Amino-3-(4-hydroxyphenyl)propanoic acid (CAS 556-02-5), is the D-enantiomer stereoisomer of natural endogenous L-Tyrosine, a synthetic non-proteinogenic aromatic chiral amino acid.

Description

D-Tyrosine is an artificial synthetic chiral aromatic amino acid with stable optical activity, which is the right-handed enantiomer of natural L-Tyrosine and does not exist in organisms naturally. It is white to off-white crystalline powder, odorless and bitter taste; slightly soluble in water, soluble in dilute acid and alkali solution, ether and acetone.

Function

Tyrosinase inhibition: Selectively inhibits tyrosinase activity, negatively regulates melanin biosynthesis and blocks UV-induced pigmentation.
Anti-biofilm activity: Inhibits bacterial adhesion and biofilm formation of Gram-positive & Gram-negative bacteria, triggers biofilm dispersal without inhibiting bacterial growth.
Chiral biochemical research: Ideal chiral reference standard for stereochemistry, amino acid metabolism and enantioselective enzyme mechanism research.
Pharma intermediate building block: Used for chiral peptide synthesis, antibiotic synthesis and β-lactamase inhibitor preparation.
Signal transduction research: Participates in aromatic amino acid transporter mechanism and cell signal pathway research.
Anti-inflammatory activity: Inhibits prostaglandin synthesis and diphenolase activity in vitro.

Application

Biochemical & Laboratory Research: Chiral standard reagent, enzyme kinetics substrate, tyrosinase inhibitor research reagent and stereobiology research raw material.
Cosmetic Industry: Skin brightening & whitening raw material, melanin inhibitor, anti-pigmentation skincare ingredient for whitening cosmetics.
Pharma Intermediates: Synthesis of chiral drugs, antibiotics, dopamine derivatives, thyroid hormone related drugs and β-lactamase inhibitors.
Microbiology Research: Anti-biofilm agent, bacterial metabolism regulation research reagent and antimicrobial mechanism study material.
Organic Synthesis: Chiral building block for peptide, heterocyclic compounds and fine chemical synthesis.

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ADVANTAGE

* Sample Provided

* Quality Assuranced

* Short-term Delivery

Company Profile

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About us, focuses on Cosmetic ative ingredients, bioactive materials, and plant extract. In cosmetics, we develop high-purity, high-stability and skin-friendly active ingredients with anti-aging, moisturizing, repairing and brightening effects through biosynthesis, meeting the demand for natural and efficient raw materials in the global beauty industry. In bioactive raw materials, we provide safe and stable products for functional food, health care and biomedical fields. In plant extract, we strictly develop and produce high-quality APIs, supporting drug R&D and human health.

In addition we have strong capabilities in customized peptide synthesis. We have a professional R&D team and an advanced synthesis platform, providing one-stop customized services covering linear peptides, complex cyclic peptides, peptide encapsulation and modification.

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Certifications

Packaging & Shipping

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FAQ

Q1: Can you provide samples?

A: Yes! It is available, you can contact our sales team.

Q2: What is your MOQ?

A: For most products, there is no minimum requirement, and for customized products, we will analyse it on a case by case basis.

Q3: How to confirm the product quality before placing order?

A: The batch COA report before shipping will be provided, and the pre-shipment samples are also available.

Q4: What is the delivery time?

A: Generally, for small order, 5-7 days after order comfirmed and payment sent, and 15 days for the larger order.

Q5: What documents you can provide?

A: COA/MSDS and other specific documents if necessary.

Q6: What kind of payments terms you accept?

A: Swift Wire / LC / Paypal / WU

Q7: How do you treat a quality complaint?

A: Till now, our sale team never received any quality complaints. If you do receive any, we recommend a third-party test and provide you with a satisfactory solution.

Q8: Is there any possible way to use my appointed label or package?

A: Yes, the OEM services is recommended to expand your brand force.

Q9: How to preserve the product after receive the item?

A: Normally keeping cool or storage 2-8℃ is recommended.

Q10: What is your shipping methods?

A: By air/ by sea/by courier /by train, We will match the most suitable shipping method for you.

ECHEMI Editorial Reference

white to off-white powder
D-tyrosine is an optically active form of tyrosine having D-configuration. It has a role as an Escherichia coli metabolite. It is a tyrosine and a D-alpha-amino acid. It is a conjugate base of a D-tyrosinium. It is a conjugate acid of a D-tyrosinate(1-). It is an enantiomer of a L-tyrosine. It is a tautomer of a D-tyrosine zwitterion.|A non-essential amino acid. In animals it is synthesized from PHENYLALANINE. It is also the precursor of EPINEPHRINE; THYROID HORMONES; and melanin.

Certificates

Basic Info

Product Name:

D-Tyrosine

Other Name:

D-Tyrosine;Tyrosine,D-;D-p-Tyrosine;(R)-Tyrosine;(2R)-2-Amino-3-(4-hydroxyphenyl)propanoic acid;H-D-Tyr-OH;D-Tyr-OH;3-(4-Hydroxyphenyl)-D-alanine;D-4-Hydroxyphenylalanine;(2R)-2-Azaniumyl-3-(4-hydroxyphenyl)propanoate;(R)-2-Amino-3-(4-hydroxyphenyl)propanoic acid

CAS No.:

556-02-5

Molecular Formula:

C9H11NO3

InChIKeys:

InChIKey=OUYCCCASQSFEME-MRVPVSSYSA-N

Molecular Weight:

181.18900

Exact Mass:

181.19

EC Number:

209-112-6

UNII:

WQ5G9JQ7GC

HScode:

2922509090

Categories:

Skin Conditioning

Characteristics

PSA:

83.55000

XLogP3:

1.04690

Appearance:

white crystals

Density:

1.333g/cm3

Melting Point:

294-300 °C (decomp)

Boiling Point:

385.2ºC at 760mmHg

Flash Point:

186.7ºC

Refractive Index:

1.614

Water Solubility:

SOLUBLE

Storage Conditions:

Store at RT.

See More D-Tyrosine Properties 

Hazard Identification

Classification of the substance or mixture

Not classified.

GHS label elements, including precautionary statements

Precautionary statement(s)
Pictogram(s)	No symbol.
Signal word	No signal word
Hazard statement(s)	none
Prevention	none
Response	none
Storage	none
Disposal	none

Other hazards which do not result in classification

no data available

Handling and Storage

Precautions for safe handling

Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.

Conditions for safe storage, including any incompatibilities

Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.

See More D-Tyrosine Safety Data Sheet 

Seller Information

Business Type:
Distributor

Main Products:
CHEMICALS

Location:
No. 109, Chailu Street, Qingnian Park Subdistrict, Huaian District, Jinan City, Shandong Province 280

Year of Establishment:
2026

Shandong Guozhao Import and Export Co., Ltd., located at No. 280, Chalu Street, Qingnian Park Subdistrict, Huaiyin District, Jinan City, Shandong Province, primarily engages in import and export of goods; sales of chemical products (excluding licensed chemical products); sales of specialty chemical products (excluding hazardous chemicals); sales of plastic products; sales of metal products; sales of building materials; sales of architectural decoration materials; sales of daily-use chemical products; sales of food additives; sales of feed additives; sales of fertilizers; sales of batteries; and general cargo warehousing services (excluding items requiring licensing or approval, such as hazardous chemicals).

Inquiry History

1 Inquiries

Country	Product	Purchase Quantity	Date Posted
Australia	D-Tyrosine	1 MT	Sep 30, 2026

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High Purity 99% D-Tyrosine Powder CAS 556-02-5 Chiral Amino Acid Supplier

Product Details

Seller Information

Inquiry History

Classification of the substance or mixture

GHS label elements, including precautionary statements

Other hazards which do not result in classification

Precautions for safe handling

Conditions for safe storage, including any incompatibilities

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