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Peptides

Trileucine

Also known as Leucyl-leucyl-leucine, Leu-leu-leu, l-leucyl-l-leucyl-l-leucine

CAS 10329-75-6Formula C18H35N3O4Molar mass 357.50 g/mol
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Trileucine chemical structure, C18H35N3O4, CAS 10329-75-6
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
10329-75-6
Formula
C18H35N3O4
Molar mass
357.50 g/mol
HS code
292419
Category
Peptides

What is Trileucine?

Plain description, key identifiers and synonyms

Leu-Leu-Leu is a tripeptide formed from three L-leucine residues. It has a role as a metabolite.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S)-2-[[(2S)-2-[[(2S)-2-amino-4-methylpentanoyl]amino]-4-methylpentanoyl]amino]-4-methylpentanoic acid
CAS number
10329-75-6 CAS number cross-checked
Molecular formula
C18H35N3O4
UNII
L6HEL5ZI2V
MDL number
MFCD00038309
InChIKey
DNDWZFHLZVYOGF-KKUMJFAQSA-N
InChI
InChI=1S/C18H35N3O4/c1-10(2)7-13(19)16(22)20-14(8-11(3)4)17(23)21-15(18(24)25)9-12(5)6/h10-15H,7-9,19H2,1-6H3,(H,20,22)(H,21,23)(H,24,25)/t13-,14-,15-/m0/s1
Canonical SMILES
CC(C)CC(N)C(=O)NC(CC(C)C)C(=O)NC(CC(C)C)C(=O)O
Isomeric SMILES
CC(C)C[C@@H](C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CC(C)C)C(=O)O)N

Synonyms

  • Leucyl-leucyl-leucine
  • Leu-leu-leu
  • l-leucyl-l-leucyl-l-leucine
  • H-LEU-LEU-LEU-OH
  • (S)-2-((S)-2-((S)-2-Amino-4-methylpentanamido)-4-methylpentanamido)-4-methylpentanoic acid
  • L-Leucine, L-leucyl-L-leucyl-
  • Leu-Leu-Leu-OH
  • (2S)-2-[[(2S)-2-[[(2S)-2-amino-4-methylpentanoyl]amino]-4-methylpentanoyl]amino]-4-methylpentanoic acid
  • (2S)-2-[(2S)-2-[(2S)-2-Amino-4-methylpentanamido]-4-methylpentanamido]-4-methylpentanoic acid
  • L-Leucine,L-leucyl-L-leucyl-
  • leucylleucylleucine
  • Tri-l-leucine
  • L-Leu-L-Leu-L-Leu
  • L-Leucine, N-(N-L-leucyl-L-leucyl)-
  • (S)-2-((S)-2-((S)-2-Amino-4-methylpentanamido)-4-methylpentanamido)-4-methylpentanoicacid
  • (2S)-2-[[(2S)-2-[[(2S)-2-amino-4-methyl-pentanoyl]amino]-4-methyl-pentanoyl]amino]-4-methyl-pentanoic acid
  • (2S)-2-[[(2S)-2-[[(2S)-2-azaniumyl-4-methylpentanoyl]amino]-4-methylpentanoyl]amino]-4-methylpentanoate

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
357.50 g/molcalc.
Exact mass
357.2628 Dacalc.
LogP (octanol/water)
1.51calc.
Topological polar surface area
121.5 Ųcalc.
Hydrogen bond donors
4calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
11calc.
Heavy atoms
25calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
0.83calc.
Formal charge
0calc.
Stereocentres
3calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

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.

Trileucine suppliers

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Trileucine 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 Trileucine is traded under.

HS 2924.19Indicative HS code

Acyclic amides (including acyclic carbamates) and their derivatives, salts thereof, other

World exports in 2024
$2.38B
−1.7% vs 2023, imports $2.22B
2019 to 2024
Top exporters
  1. China34.7%
  2. Germany12.5%
  3. India * partner reported6.8%
Top importers
  1. United States17.5%
  2. Germany8.8%
  3. India * partner reported6.7%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

Quick answers about Trileucine, based on the data on this page

What is Trileucine?

Leu-Leu-Leu is a tripeptide formed from three L-leucine residues. It has a role as a metabolite.

What is the CAS number of Trileucine?

The CAS registry number of Trileucine is 10329-75-6.

What is the molecular formula and weight of Trileucine?

The molecular formula of Trileucine is C18H35N3O4 and its molar mass is 357.50 g/mol.

What is Trileucine used for?

Known uses and roles of Trileucine include metabolite.

Is Trileucine hazardous?

No GHS hazard classification for Trileucine 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 Trileucine?

Trileucine is usually classified under HS code 292419 (Acyclic amides (including acyclic carbamates) and their derivatives, salts thereof, other). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Trileucine?

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

What is the price of Trileucine?

Suppliers quote Trileucine 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 Trileucine

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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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