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Peptides

Phe-Tyr

Also known as phenylalanyltyrosine, FY dipeptide, F-Y Dipeptide

CAS 17355-18-9Formula C18H20N2O4Molar mass 328.37 g/mol
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Phe-Tyr chemical structure, C18H20N2O4, CAS 17355-18-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
17355-18-9
Formula
C18H20N2O4
Molar mass
328.37 g/mol
HS code
292429
Category
Peptides

What is Phe-Tyr?

Plain description, key identifiers and synonyms

Phe-Tyr is a dipeptide formed from L-phenylalanine and L-tyrosine residues. It has a role as a metabolite. It is functionally related to a L-phenylalanine and a L-tyrosine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S)-2-[[(2S)-2-amino-3-phenylpropanoyl]amino]-3-(4-hydroxyphenyl)propanoic acid
CAS number
17355-18-9 CAS number cross-checked
Molecular formula
C18H20N2O4
MDL number
MFCD00037184
InChIKey
FSXRLASFHBWESK-HOTGVXAUSA-N
InChI
InChI=1S/C18H20N2O4/c19-15(10-12-4-2-1-3-5-12)17(22)20-16(18(23)24)11-13-6-8-14(21)9-7-13/h1-9,15-16,21H,10-11,19H2,(H,20,22)(H,23,24)/t15-,16-/m0/s1
Canonical SMILES
NC(Cc1ccccc1)C(=O)NC(Cc1ccc(O)cc1)C(=O)O
Isomeric SMILES
C1=CC=C(C=C1)C[C@@H](C(=O)N[C@@H](CC2=CC=C(C=C2)O)C(=O)O)N

Synonyms

  • phenylalanyltyrosine
  • FY dipeptide
  • F-Y Dipeptide
  • (2S)-2-[[(2S)-2-amino-3-phenylpropanoyl]amino]-3-(4-hydroxyphenyl)propanoic acid
  • Phenylalanyl-Tyrosine
  • Phenylalanine Tyrosine dipeptide
  • Phenylalanine-Tyrosine dipeptide
  • (2S)-2-[[(2S)-2-Azaniumyl-3-phenylpropanoyl]amino]-3-(4-hydroxyphenyl)propanoate
  • (2S)-2-(((2S)-2-amino-3-phenylpropanoyl)amino)-3-(4-hydroxyphenyl)propanoic acid
  • (2S)-2-(((2S)-2-azaniumyl-3-phenylpropanoyl)amino)-3-(4-hydroxyphenyl)propanoate
  • (2S)-2-{[(2S)-2-amino-3-phenylpropanoyl]amino}-3-(4-hydroxyphenyl)propanoic acid
  • N-Phenylalanyltyrosine
  • N-L-Phenylalanyl-L-tyrosine
  • H-Phe-Tyr-OH
  • L-phenylalanyl-L-tyrosine
  • L-Tyrosine, L-phenylalanyl-
  • (S)-2-((S)-2-Amino-3-phenylpropanamido)-3-(4-hydroxyphenyl)propanoic acid
  • (2S)-2-[[(2S)-2-amino-3-phenyl-propanoyl]amino]-3-(4-hydroxyphenyl)propanoic acid
  • L-Tyrosine,L-phenylalanyl-
  • (2S)-2-[(2S)-2-Amino-3-phenylpropanamido]-3-(4-hydroxyphenyl)propanoic acid
  • L-Phe-L-Tyr
  • L-Phenylalanin L-Tyrosin
  • FY
  • L-Tyrosine, L-phenylalanyl-, monomer
  • Melanin synthesized from Phe-Tyr substrate catalyzed by tyrosinase for 40 hrs
Show all 26 synonyms
  • F-Y

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
328.37 g/molcalc.
Exact mass
328.1423 Dacalc.
LogP (octanol/water)
1.07calc.
Topological polar surface area
112.7 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
7calc.
Heavy atoms
24calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.22calc.
Formal charge
0calc.
Stereocentres
2calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=C(CCc1ccccc1)NCCc1ccccc1

O=C(CCc1ccccc1)NCCc1ccccc1

2 rings, 19 atoms, the 3-Phenyl-N-(2-phenylethyl)propanamide ring system.

413 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Phe-Tyr suppliers

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Phe-Tyr price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Roles

  • metabolite

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Phe-Tyr is traded under.

HS 2924.29Indicative HS code

Cyclic amides (including cyclic carbamates) and their derivatives, salts thereof, other

World exports in 2024
$5.69B
−5.1% vs 2023, imports $5.8B
2019 to 2024
Top exporters
  1. China32.3%
  2. Switzerland * partner reported13.6%
  3. Norway * partner reported12.8%
Top importers
  1. United States15.9%
  2. Ireland15.8%
  3. Germany11.9%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Phe-Tyr is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Phe-Tyr, based on the data on this page

What is Phe-Tyr?

Phe-Tyr is a dipeptide formed from L-phenylalanine and L-tyrosine residues. It has a role as a metabolite. It is functionally related to a L-phenylalanine and a L-tyrosine.

What is the CAS number of Phe-Tyr?

The CAS registry number of Phe-Tyr is 17355-18-9.

What is the molecular formula and weight of Phe-Tyr?

The molecular formula of Phe-Tyr is C18H20N2O4 and its molar mass is 328.37 g/mol.

What is Phe-Tyr used for?

Known uses and roles of Phe-Tyr include metabolite.

Is Phe-Tyr hazardous?

No GHS hazard classification for Phe-Tyr is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Phe-Tyr?

Phe-Tyr is usually classified under HS code 292429 (Cyclic amides (including cyclic carbamates) and their derivatives, salts thereof, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Phe-Tyr?

Post a free request on CompoundList and suppliers of Phe-Tyr will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Phe-Tyr?

Suppliers quote Phe-Tyr on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Phe-Tyr

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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