Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: D-Tyrosine
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Henan Tianfu Chemical Co., Ltd.
China
Product Name: D-tyrosine
Price: $Inquiry/1kg $Inquiry/25kg $Inquiry/1000kg $Inquiry/10ton
Purity: 99.0%
Stocking Period: Inquiry
Contact: Anson
Email: info@tianfuchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: D-Thr-OH
Price: ￥Inquiry/25kg
Purity: 99.0%
Stocking Period: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

556-02-5

556-02-5 structure

Name: D-Thr-OH
Chemical Name: D-tyrosine
CAS Number: 556-02-5
Molecular Formula: C₉H₁₁NO₃
Molecular Weight: 181.189
Catalog: Biochemical Common amino acids and protein drugs
Create Date: 2018-02-20 08:00:00
Modify Date: 2026-06-30 11:28:46
D-Tyrosine is the D-isomer of tyrosine. D-Tyrosine negatively regulates melanin synthesis by inhibiting tyrosinase activity. D-Tyrosine inhibits biofilm formation and trigger the self-dispersal of biofilms without suppressing bacterial growth[1][2].

Name	D-tyrosine
Synonyms	D-Tyrosine L-tyrosine zwitterion hydrogen L-tyrosinate MFCD00063073 D -Tyrosine (2R)-2-amino-3-(4-hydroxyphenyl)propanoic acid (2R)-2-Amino-3-(4-hydroxyphenyl)propanoic acid a-Amino-p-hydroxyhydrocinnamic Acid TYROSINE, D-(RG) D-Tyrosine (9CI, ACI) Tirofiban Impurity D-p-Tyrosine D-Tyrosine Vetec(TM) ade d-Tyr Tirofiban hydrochloride monohydrate Impurity 1 D-Tyrosine //BP H-D-Tyr-OH (D-Tyrosine D-β-(p-hydroxyphenyl) alanine D-thyrosine D-THREONINOL D-TYROSINE extrapure D-3-(4-HYDROXYPHENYL)ALANINE H-D-TYR-OH (R)-2-Amino-3-(4-hydroxyphenyl)propanoic acid D-Tyr-OH Tyrosine (R)-Tyrosine D(+)-TYROSINE D-α-Amino-β-p-hydroxyphenyl propionic acid (R)-2-Amino-3-(4-hydroxyphenyl)propionic acid, 3-(4-Hydroxyphenyl)-D-alanine L-Tyr (R)-(+)-3-(4-HYDROXYPHENYL)-D-ALANINE (R)-3-(4-Hydroxyphenyl)alanine D-TYROSINE, ( EE/GLC) (R)-2-AMINO-3-(4-HYDROXYPHENYL)PROPIONIC ACID (R)-(+)-TYROSINE (S)-a-Amino-4-hydroxybenzenepropanoic acid D-TYR hydrogen D-tyrosinate D-α-Amino-p-hydroxyhydrocinnaMic acid dextro-tyrosine D-Tyrosine,(R)-2-Amino-3-(4-hydroxyphenyl)propionic acid, 3-(4-Hydroxyphenyl)-D-alanine EINECS 209-112-6 (2R)-2-(3-amino-4-hydroxyphenyl)propanoic acid D-Tyrosine-15N PAGOS H-Tyr-OH D-Tyrosine ReagentPlus(R) H-D-Tyr-OH Tyr (S)-(-)-Tyrosine 3-(4-HYDROXYPHENYL)-D-ALANINE b-(p-Hydroxyphenyl)alanine D-Tyrosine (Titration) Tyrosinum [Latin] (S)-a-amino-4-hydroxy-Benzenepropanoic acid (S)-tyrosine D-4-Hydroxyphenyl-d4-alanine-d3 TYROSINE, D (S)-α-amino-4-hydroxy-Benzenepropanoic acid DL-tyrosine RECHEM AB PP

Description	D-Tyrosine is the D-isomer of tyrosine. D-Tyrosine negatively regulates melanin synthesis by inhibiting tyrosinase activity. D-Tyrosine inhibits biofilm formation and trigger the self-dispersal of biofilms without suppressing bacterial growth[1][2].
Related Catalog	Signaling Pathways >> Metabolic Enzyme/Protease >> Tyrosinase Research Areas >> Metabolic Disease
Target	Tyrosinase[1]
References	[1]. Jisu Park, et al. D-tyrosine Negatively Regulates Melanin Synthesis by Competitively Inhibiting Tyrosinase Activity. Pigment Cell Melanoma Res. 2018 May;31(3):374-383. [2]. Cong Yu, et al. Inhibition of Biofilm Formation by D-tyrosine: Effect of Bacterial Type and D-tyrosine Concentration. Water Res. 2016 Apr 1;92:173-9.

Density	1.3±0.1 g/cm3
Boiling Point	385.2±32.0 °C at 760 mmHg
Melting Point	310-314ºC
Molecular Formula	C₉H₁₁NO₃
Molecular Weight	181.189
Flash Point	186.7±25.1 °C
Exact Mass	181.073898
PSA	83.55000
LogP	0.38
Vapour Pressure	0.0±0.9 mmHg at 25°C
Index of Refraction	1.614

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H315-H319-H335
Precautionary Statements	P261-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xn: Harmful;
Risk Phrases	R36/37/38
Safety Phrases	S24/25
RIDADR	NONH for all modes of transport
WGK Germany	3
HS Code	2922509090

Precursor 8
156-39-8 537-24-6 54788-30-6 63-91-2
300-30-1 33927-09-2 32089-82-0 82301-52-8
DownStream 10
3417-91-2 53786-98-4 3728-20-9 3978-80-1
35186-98-2 4985-46-0 32988-39-9 103-82-2
556-02-5 54614-13-0

HS Code	2922509090
Summary	2922509090. other amino-alcohol-phenols, amino-acid-phenols and other amino-compounds with oxygen function. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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