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Peptides

Thr-Pro

Also known as L-threonyl-L-proline, (2S)-1-[(2S,3R)-2-Amino-3-hydroxybutanoyl]pyrrolidine-2-carboxylic acid, (2S)-1-((2S,3R)-2-amino-3-hydroxybutanoyl)pyrrolidine-2-carboxylic acid

CAS 46398-79-2Formula C9H16N2O4Molar mass 216.24 g/mol
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Thr-Pro chemical structure, C9H16N2O4, CAS 46398-79-2
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
46398-79-2
Formula
C9H16N2O4
Molar mass
216.24 g/mol
HS code
293399
Category
Peptides

What is Thr-Pro?

Plain description, key identifiers and synonyms

Thr-Pro is a dipeptide formed from L-threonine and L-proline residues. It has a role as a metabolite. It is functionally related to a L-threonine and a L-proline.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S)-1-[(2S,3R)-2-amino-3-hydroxybutanoyl]pyrrolidine-2-carboxylic acid
CAS number
46398-79-2 CAS number cross-checked
Molecular formula
C9H16N2O4
InChIKey
QOLYAJSZHIJCTO-VQVTYTSYSA-N
InChI
InChI=1S/C9H16N2O4/c1-5(12)7(10)8(13)11-4-2-3-6(11)9(14)15/h5-7,12H,2-4,10H2,1H3,(H,14,15)/t5-,6+,7+/m1/s1
Canonical SMILES
CC(O)C(N)C(=O)N1CCCC1C(=O)O
Isomeric SMILES
C[C@H]([C@@H](C(=O)N1CCC[C@H]1C(=O)O)N)O

Synonyms

  • L-threonyl-L-proline
  • (2S)-1-[(2S,3R)-2-Amino-3-hydroxybutanoyl]pyrrolidine-2-carboxylic acid
  • (2S)-1-((2S,3R)-2-amino-3-hydroxybutanoyl)pyrrolidine-2-carboxylic acid
  • (2S)-1-((2S,3R)-2-azaniumyl-3-hydroxybutanoyl)pyrrolidine-2-carboxylate
  • H-THR-PRO-OH
  • threonylproline
  • threonyl-proline
  • L-Thr-L-Pro
  • Threoninylproline
  • TP dipeptide
  • (S)-1-((2S,3R)-2-Amino-3-hydroxybutanoyl)pyrrolidine-2-carboxylic acid
  • T-P Dipeptide
  • L-Threoninyl-L-Proline
  • Threonine Proline dipeptide
  • Threonine-Proline dipeptide
  • T-P

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
216.24 g/molcalc.
Exact mass
216.111 Dacalc.
LogP (octanol/water)
-1.23calc.
Topological polar surface area
103.9 Ųcalc.
Hydrogen bond donors
3calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
3calc.
Heavy atoms
15calc.
Rings
1calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.78calc.
Formal charge
0calc.
Stereocentres
3calc.
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, C1CCNC1

C1CCNC1

1 ring, 5 atoms, the Pyrrolidine ring system.

22,348 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.

Thr-Pro suppliers

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Thr-Pro 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 Thr-Pro 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 Thr-Pro is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Thr-Pro, based on the data on this page

What is Thr-Pro?

Thr-Pro is a dipeptide formed from L-threonine and L-proline residues. It has a role as a metabolite. It is functionally related to a L-threonine and a L-proline.

What is the CAS number of Thr-Pro?

The CAS registry number of Thr-Pro is 46398-79-2.

What is the molecular formula and weight of Thr-Pro?

The molecular formula of Thr-Pro is C9H16N2O4 and its molar mass is 216.24 g/mol.

What is Thr-Pro used for?

Known uses and roles of Thr-Pro include metabolite.

Is Thr-Pro hazardous?

No GHS hazard classification for Thr-Pro 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 Thr-Pro?

Thr-Pro 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 Thr-Pro?

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

What is the price of Thr-Pro?

Suppliers quote Thr-Pro 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 Thr-Pro

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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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