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Aromatic building blocks

Leucine-beta-naphthylamide

Also known as leucine-2-naphthylamide, Leu-Nap, Pentanamide, 2-amino-4-methyl-N-2-naphthalenyl-, (S)-

CAS 732-85-4Formula C16H20N2OMolar mass 256.35 g/molEC 211-990-0
GHS signal word: Warning. Pictograms: Serious health hazard
Get quotes Safety data
Leucine-beta-naphthylamide chemical structure, C16H20N2O, CAS 732-85-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
732-85-4
Formula
C16H20N2O
Molar mass
256.35 g/mol
EC number
211-990-0
HS code
292429
Category
Aromatic building blocks

What is Leucine-beta-naphthylamide?

Plain description, key identifiers and synonyms

L-leucine 2-naphthylamide is an L-leucine derivative that is the amide obtained by formal condensation of the carboxy group of L-leucine with the amino group of 2-naphthylamine. It has a role as a chromogenic compound. It is an amino acid amide, a L-leucine derivative and a N-(2-naphthyl)carboxamide.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(2S)-2-amino-4-methyl-N-naphthalen-2-ylpentanamide
CAS number
732-85-4 CAS number cross-checked
EC number
211-990-0
Molecular formula
C16H20N2O
MDL number
MFCD00055914
InChIKey
JWHURRLUBVMKOT-HNNXBMFYSA-N
InChI
InChI=1S/C16H20N2O/c1-11(2)9-15(17)16(19)18-14-8-7-12-5-3-4-6-13(12)10-14/h3-8,10-11,15H,9,17H2,1-2H3,(H,18,19)/t15-/m0/s1
Canonical SMILES
CC(C)CC(N)C(=O)Nc1ccc2ccccc2c1
Isomeric SMILES
CC(C)C[C@@H](C(=O)NC1=CC2=CC=CC=C2C=C1)N

Synonyms

  • leucine-2-naphthylamide
  • Leu-Nap
  • Pentanamide, 2-amino-4-methyl-N-2-naphthalenyl-, (S)-
  • L-Leucine beta-naphthylamide
  • H-Leu-bNA
  • (S)-2-Amino-4-methyl-N-(naphthalen-2-yl)pentanamide
  • N-(2-Naphthyl)-L-leucinamide
  • H-Leu-betaNA
  • L-leucine 2-naphthylamide
  • L-Leucine-beta-naphthylamide
  • (S)-2-Amino-4-methyl-N-2-naphthylvaleramide
  • (2S)-2-amino-4-methyl-N-naphthalen-2-ylpentanamide
  • L-?Leucine-??-?naphthylamide
  • 2-Amino-4-methyl-N-(2-naphthyl)pentanamide
  • n-naphthalen-2-yl-l-leucinamide
  • L-Leucine-|A-naphthylamide
  • N-leucyl-2-aminonaphthalene
  • L-Leucine-2-naphthylamine
  • N-L-leucyl-2-naphthylamine
  • (L)-leucine-beta-napthylamide
  • L-Leucyl-beta-naphthylamide
  • N-(beta-naphthyl)-L-leucinamide
  • (2S)-2-Amino-4-methyl-N-(naphthalen-2-yl)pentanamide
  • N-(Naphthalen-2-yl)-L-leucinamide
  • Valeramide, 2-amino-4-methyl-N-2-naphthyl-, L-
Show all 30 synonyms
  • L-Leucine-2-naphthylamine hydrochloride (Salt/Mix)
  • (2S)-2-Amino-4-methyl-N-(2-naphthalenyl)pentanamide
  • L-Leucine beta-naphthylamide hydrochloride (Salt/Mix)
  • L-Leucyl-beta-naphthylamide hydrochloride (Salt/Mix)
  • N-(2-Naphthyl)-L-leucinamide hydrochloride (Salt/Mix)

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
256.35 g/molcalc.
Exact mass
256.1576 Dacalc.
LogP (octanol/water)
3.15calc.
Topological polar surface area
55.12 Ųcalc.
Hydrogen bond donors
2calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
4calc.
Heavy atoms
19calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.31calc.
Formal charge
0calc.
Stereocentres
1calc.
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, c1ccc2ccccc2c1

c1ccc2ccccc2c1

2 rings, 10 atoms, the Naphthalene ring system.

17,920 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Warning
GHS08: Serious health hazard
Serious health hazard

Hazard statements

  • H351Suspected of causing cancer.
Precautionary statements (5)
  • P203Obtain, read and follow all safety instructions before use.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P318If exposed or concerned, get medical advice.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

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

Full safety data and first aid

Leucine-beta-naphthylamide suppliers

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Leucine-beta-naphthylamide 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

  • chromogenic compound
  • colour indicator
  • indicator
  • one-colour indicator
  • visual indicator

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

Frequently asked questions

Quick answers about Leucine-beta-naphthylamide, based on the data on this page

What is Leucine-beta-naphthylamide?

L-leucine 2-naphthylamide is an L-leucine derivative that is the amide obtained by formal condensation of the carboxy group of L-leucine with the amino group of 2-naphthylamine. It has a role as a chromogenic compound. It is an amino acid amide, a L-leucine derivative and a N-(2-naphthyl)carboxamide.

What is the CAS number of Leucine-beta-naphthylamide?

The CAS registry number of Leucine-beta-naphthylamide is 732-85-4.

What is the molecular formula and weight of Leucine-beta-naphthylamide?

The molecular formula of Leucine-beta-naphthylamide is C16H20N2O and its molar mass is 256.35 g/mol.

What is Leucine-beta-naphthylamide used for?

Known uses and roles of Leucine-beta-naphthylamide include building blocks in research and laboratory, screening compounds in research and laboratory, chromogenic compound, colour indicator, indicator and 2 more.

Is Leucine-beta-naphthylamide hazardous?

Leucine-beta-naphthylamide carries the GHS signal word "Warning". Main hazards: suspected of causing cancer. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Leucine-beta-naphthylamide?

Leucine-beta-naphthylamide 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 Leucine-beta-naphthylamide?

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What is the price of Leucine-beta-naphthylamide?

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

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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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