N-Acetyl-L-leucine

Modify Date: 2026-06-29 15:07:49

N-Acetyl-L-leucine Structure
N-Acetyl-L-leucine structure
Common Name N-Acetyl-L-leucine
CAS Number 1188-21-2 Molecular Weight 173.210
Density 1.1±0.1 g/cm3 Boiling Point 369.6±25.0 °C at 760 mmHg
Molecular Formula C8H15NO3 Melting Point 187-190 °C(lit.)
MSDS USA Flash Point 177.4±23.2 °C

 Use of N-Acetyl-L-leucine


L-Acetylleucine is used for treating vestibular-related imbalance and vertigo.

Summary: N-acetyl-L-leucine, also known as N-Acetyl-L-leucine, with CAS number 1188-21-2, has a molecular formula of C8H15NO3 and a molecular weight of 173.210. It appears as a white crystalline powder with a melting point of 187-190 °C. For research-use only, not for medical or clinical usage.


 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name N-acetyl-L-leucine
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.1±0.1 g/cm3
Boiling Point 369.6±25.0 °C at 760 mmHg
Melting Point 187-190 °C(lit.)
Molecular Formula C8H15NO3
Molecular Weight 173.210
Flash Point 177.4±23.2 °C
Exact Mass 173.105194
PSA 66.40000
LogP 0.34
Vapour Pressure 0.0±1.8 mmHg at 25°C
Index of Refraction 1.458
InChIKey WXNXCEHXYPACJF-ZETCQYMHSA-N
SMILES CC(=O)NC(CC(C)C)C(=O)O
Water Solubility 0.81 g/100 mL (20 ºC)

 MSDS

This table provides MSDS information including hazard classification, first‑aid, fire‑fighting, spill handling, operation and storage instructions.

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

Hazard Codes Xi: Irritant;
Risk Phrases R36/37/38
Safety Phrases S24/25
RIDADR NONH for all modes of transport
WGK Germany 3
HS Code 2924199090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2924199090
Summary 2924199090. other acyclic amides (including acyclic carbamates) and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

 Articles19

More Articles

This table lists relevant public references with title, journal and publication metadata for this compound.

Shiftless nuclear magnetic resonance spectroscopy.

J. Chem. Phys. 128(5) , 052312, (2008)

The acquisition and analysis of high resolution one- and two-dimensional solid-state nuclear magnetic resonance (NMR) spectra without chemical shift frequencies are described. Many variations of shift...

Effects of vestibular training on motion sickness, nystagmus, and subjective vertical.

J. Vestib. Res. 17(5-6) , 227-37, (2007)

Pitch head-and-trunk movements during constant velocity rotation are a provocative vestibular stimulus that produces vertigo and nausea. When exposed to this stimulus repeatedly, motion sickness sympt...

Investigation of finite-pulse radiofrequency-driven recoupling methods for measurement of intercarbonyl distances in polycrystalline and membrane-associated HIV fusion peptide samples.

Magn. Reson. Chem. 45 Suppl 1 , S247-60, (2007)

Two finite-pulse radiofrequency-driven recoupling (RFDR) methods were compared and applied to the measurement of 3-6 Å (13)CO-(13)CO distances in polycrystalline and membrane-associated HIV fusion pep...

 N-Acetyl-L-leucineBioassay

View more

This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Primary qHTS assay for inhibitors of alpha-synuclein gene (SNCA) expression
Source: NCGC
External Id: SNCA-p-activity-luciferase
Name: Dicer-mediated maturation of pre-microRNA
Source: Center for Chemical Genomics, University of Michigan
Target: N/A
External Id: TargetID_659_CEMA
Name: p53 small molecule agonists, cell-based qHTS assay
Source: 824
External Id: P53344
Name: p53 small molecule agonists, cell-based qHTS assay with human liver microsomes
Source: 824
Target: tumor suppressor p53 [Homo sapiens]
External Id: P53MS233
Name: p53 small molecule agonists, cell-based qHTS assay with rat liver microsomes
Source: 824
Target: tumor suppressor p53 [Homo sapiens]
External Id: P53MS898
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 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

(S)-N-Acetylleucine
N-Acetyl-L-leucine
(E)-N-(1-Hydroxyethylidene)-L-leucine
(S)-N-acetyl-leucine
EINECS 214-706-3
L-Leucine, N-acetyl
(S)-2-Acetamido-4-methylpentanoic acid
Acetyl-L-Leucine
MFCD00026498
Acetylleucine
Ac-Leu-OH

 N-Acetyl-L-leucine | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the CAS number of N-acetyl-L-leucine?
A: CAS number of N-acetyl-L-leucine is 1188-21-2.
Q: What is the safety information for N-acetyl-L-leucine?
A: Safety information for N-acetyl-L-leucine: S24/25.
Q: What are the upstream materials of N-acetyl-L-leucine?
A: Related upstream materials(CAS) of N-acetyl-L-leucine: 61-90-5;108-24-7;64896-30-6;74839-85-3;57289-25-5;99-15-0;85785-66-6;18869-43-7;2899-43-6.
Q: What is the polar surface area (PSA) of N-acetyl-L-leucine?
A: Polar surface area (PSA) of N-acetyl-L-leucine is 66.40000.
Q: What is the molecular weight of N-acetyl-L-leucine?
A: Molecular weight of N-acetyl-L-leucine is 173.210.
Q: What is the InChIKey of N-acetyl-L-leucine?
A: InChIKey of N-acetyl-L-leucine is WXNXCEHXYPACJF-ZETCQYMHSA-N.
Q: What are the uses of N-acetyl-L-leucine?
A: Main uses of N-acetyl-L-leucine: L-Acetylleucine is used for treating vestibular-related imbalance and vertigo.
Q: What is the SMILES notation of N-acetyl-L-leucine?
A: SMILES notation of N-acetyl-L-leucine is CC(=O)NC(CC(C)C)C(=O)O.
Q: How is the water solubility of N-acetyl-L-leucine?
A: Water solubility of N-acetyl-L-leucine: 0.81 g/100 mL (20 ºC).
Q: What is the English name of N-acetyl-L-leucine?
A: The English name of N-acetyl-L-leucine is N-acetyl-L-leucine.

 N-Acetyl-L-leucinefactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
Henan Tianfu Chemical Co., Ltd.
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