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Peptides

Trp-Ser

Also known as L-tryptophyl-L-serine, L-Trp-L-Ser, L-Tryptophanyl-L-serine

CAS 133101-40-3Formula C14H17N3O4Molar mass 291.31 g/mol
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Trp-Ser chemical structure, C14H17N3O4, CAS 133101-40-3
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
133101-40-3
Formula
C14H17N3O4
Molar mass
291.31 g/mol
HS code
293399
Category
Peptides

What is Trp-Ser?

Plain description, key identifiers and synonyms

Trp-Ser is a dipeptide formed from L-tryptophan and L-serine residues. It has a role as a metabolite. It is functionally related to a L-tryptophan and a L-serine.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S)-2-[[(2S)-2-amino-3-(1H-indol-3-yl)propanoyl]amino]-3-hydroxypropanoic acid
CAS number
133101-40-3
Molecular formula
C14H17N3O4
MDL number
MFCD00037960
InChIKey
MYVYPSWUSKCCHG-JQWIXIFHSA-N
InChI
InChI=1S/C14H17N3O4/c15-10(13(19)17-12(7-18)14(20)21)5-8-6-16-11-4-2-1-3-9(8)11/h1-4,6,10,12,16,18H,5,7,15H2,(H,17,19)(H,20,21)/t10-,12-/m0/s1
Canonical SMILES
NC(Cc1c[nH]c2ccccc12)C(=O)NC(CO)C(=O)O
Isomeric SMILES
C1=CC=C2C(=C1)C(=CN2)C[C@@H](C(=O)N[C@@H](CO)C(=O)O)N

Synonyms

  • L-tryptophyl-L-serine
  • L-Trp-L-Ser
  • L-Tryptophanyl-L-serine
  • H-TRP-SER-OH
  • N-L-Tryptophylserine
  • (2S)-2-[[(2S)-2-amino-3-(1H-indol-3-yl)propanoyl]amino]-3-hydroxypropanoic acid
  • (2S)-2-[[(2S)-2-azaniumyl-3-(1H-indol-3-yl)propanoyl]amino]-3-hydroxypropanoate
  • (S)-2-((S)-2-Amino-3-(1H-indol-3-yl)Propanamido)-3-hydroxyPropanoic acid
  • tryptophanyl-serine
  • WS
  • W-S

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
291.31 g/molcalc.
Exact mass
291.1219 Dacalc.
LogP (octanol/water)
-0.4calc.
Topological polar surface area
128.4 Ųcalc.
Hydrogen bond donors
5calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
6calc.
Heavy atoms
21calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.29calc.
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, c1ccc2[nH]ccc2c1

c1ccc2[nH]ccc2c1

2 rings, 9 atoms, the Indole ring system.

25,097 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.

Trp-Ser suppliers

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Trp-Ser 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 Trp-Ser is traded under.

HS 2933.99Indicative HS code

Heterocyclic compounds with nitrogen hetero-atom(s) only, other

World exports in 2024
$12.1B
−31.0% vs 2023, imports $28.8B
2019 to 2024
Top exporters
  1. China30.5%
  2. India * partner reported16.3%
  3. Ireland9.0%
Top importers
  1. Slovenia31.7%
  2. Italy24.2%
  3. United States5.0%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Trp-Ser, based on the data on this page

What is Trp-Ser?

Trp-Ser is a dipeptide formed from L-tryptophan and L-serine residues. It has a role as a metabolite. It is functionally related to a L-tryptophan and a L-serine.

What is the CAS number of Trp-Ser?

The CAS registry number of Trp-Ser is 133101-40-3.

What is the molecular formula and weight of Trp-Ser?

The molecular formula of Trp-Ser is C14H17N3O4 and its molar mass is 291.31 g/mol.

What is Trp-Ser used for?

Known uses and roles of Trp-Ser include metabolite.

Is Trp-Ser hazardous?

No GHS hazard classification for Trp-Ser 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 Trp-Ser?

Trp-Ser is usually classified under HS code 293399 (Heterocyclic compounds with nitrogen hetero-atom(s) only, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Trp-Ser?

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

What is the price of Trp-Ser?

Suppliers quote Trp-Ser 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 Trp-Ser

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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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