L-Tyrosine
Also known as: L-Tyrosine, (S)-Tyrosine, 3-(4-Hydroxyphenyl)-L-alanine, H-Tyr-OH, (S)-2-Amino-3-(4-hydroxyphenyl)propanoic acid, Tyr, 4-Hydroxy-L-phenylalanine, (S)-α-Amino-4-hydroxybenzenepropanoic acid, L-Phenylalanine, 4-hydroxy-, Tyrosine, L-, Tyrosinum [Latin], a-Amino-p-hydroxyhydrocinnamic acid, β-(p-Hydroxyphenyl)alanine
L-Tyrosine (CAS 60-18-4) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H11NO3 and a molecular weight of 181.19100 g/mol. Key properties include a melting point of >300 °C (dec.)(lit.), a boiling point of 385.2±32.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 186.7±25.1 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. It is listed by 1 supplier; request a quote for pricing. Record last updated Nov 4, 2026.
- CAS No.
- 60-18-4
- Jingsj CID
- J-39681-7
- Molecular Formula
- C9H11NO3
- Molecular Weight
- 181.19100 g/mol
- Category
- Organic Acids
- Last updated
- 11/4/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | >300 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 385.2±32.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 186.7±25.1 °C |
| Exact Mass | 181.073898 |
| PSA | 83.55000 |
| LogP | 0.38 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.614 |
| Additional Property | 0.45 g/L (25 ºC) |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Ferreira GK, et al. Effect of L-tyrosine in vitro and in vivo on energy metabolism parameters in brain and liver of young rats. Neurotox Res. 2013 May;23(4):327-35. |
Customs & Trade Information
| 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% |
Frequently Asked Questions
What is the CAS number of L-Tyrosine?
The CAS number of L-Tyrosine is 60-18-4.
What are the molecular formula and molecular weight of L-Tyrosine?
L-Tyrosine has molecular formula C9H11NO3 and molecular weight 181.19100 g/mol.
Which suppliers offer L-Tyrosine?
1 supplier(s) listed; request a quote for pricing.
Is L-Tyrosine hazardous?
L-Tyrosine has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of L-Tyrosine?
For L-Tyrosine, Upstream Products: N-(tert-Butoxycarbonyl)-L-tyrosine, 4-Hydroxyphenylpyruvic acid; Downstream Products: Dimethylamine, Trimethylamine, Methyl 3-(3,5-dibromo-4-hydroxyphenyl)-2-[(2,2,2-trifluoroacetyl)amino]propanoate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "L-Tyrosine (CAS 60-18-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39681-7 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.