DL-Tyrosine, 99%+

About DL-Tyrosine, 99%+

DL-Tyrosine is an amino acid derivative (Biochemistry grade) carrying the CAS registry number 556-03-6 with a typical assay of ≥99%. With the molecular formula C9H11NO3, it has a molar mass of 181.19 g/mol. Systematically, it is named 2-amino-3-(4-hydroxyphenyl)propanoic acid. Alternative names: (±)-2-Amino-3-(4-hydroxyphenyl)propionic acid and 3-(4-Hydroxyphenyl)-DL-alanine.

It is supplied as a white powder to crystalline powder. Key physical data: a melting point of ≥300 °C. Keep the container tightly sealed and store it in a cool, dry area. It carries the GHS signal word “Warning” with 3 hazard statements. Review the Safety Data Sheet before use.

Key uses span peptide synthesis, cell culture media and biochemical research. Buyers come mainly from academic and industrial research and diagnostics and biotechnology.

We offer DL-Tyrosine in 1 g, 5 g, 25 g and 100 g packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Peptide synthesis
Cell culture media
Biochemical research

Industries

Specifications & identifiers

Chemical identifiers
Product name	DL-Tyrosine, 99%+
Catalogue No.	VQ-002103
CAS Number	556-03-6
IUPAC name	2-amino-3-(4-hydroxyphenyl)propanoic acid
Molecular formula	C₉H₁₁NO₃
Molecular weight	181.19 g/mol
Exact mass	181.0739
Grade	Biochemistry
Purity / assay	≥99%
HSN code	29225015
InChIKey	OUYCCCASQSFEME-UHFFFAOYSA-N
SMILES	C1=CC(=CC=C1CC(C(=O)O)N)O
PubChem CID	1153

Physical properties
Physical form	Powder
Appearance	White powder to crystalline powder
Melting point	≥300 °C
LogP (XLogP3)	-2.3
H-bond donors / acceptors	3 / 4
TPSA	83.6 Å²
Synonyms	(±)-2-Amino-3-(4-hydroxyphenyl)propionic acid, 3-(4-Hydroxyphenyl)-DL-alanine, Tyrosine, DL-, 2-azaniumyl-3-(4-hydroxyphenyl)propanoate, H-DL-Tyr-OH, (.+-.)-Tyrosine, L-Tryosine, tyrosin, Benzenepropanoic acid, (S)-, 2-Amino-3-(4-hydroxyphenyl)-propanoicaci, (+-)-Tyrosine, beta-p-Hydroxyphenylalanine

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of DL-Tyrosine, 99%+?

The CAS Registry Number of DL-Tyrosine, 99%+ is 556-03-6. It is also known as (±)-2-Amino-3-(4-hydroxyphenyl)propionic acid, 3-(4-Hydroxyphenyl)-DL-alanine, Tyrosine, DL-.

What is the molecular formula and molecular weight of DL-Tyrosine, 99%+?

DL-Tyrosine, 99%+ has the molecular formula C9H11NO3 and a molecular weight of 181.19 g/mol. Its IUPAC name is 2-amino-3-(4-hydroxyphenyl)propanoic acid.

Which grade and pack sizes of DL-Tyrosine, 99%+ can I order?

We supply DL-Tyrosine, 99%+ in Biochemistry (≥99%) grade, in 1 g, 5 g, 25 g, 100 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with DL-Tyrosine, 99%+?

Yes. Every lot of DL-Tyrosine, 99%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can DL-Tyrosine, 99%+ be shipped internationally?

Yes. DL-Tyrosine, 99%+ is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.