Leu-Leu - ≥98% , CAS No.3303-31-9

CAS: 3303-31-9 Cat. No.: L121432 Molecular Weight: 244.33 EC Number: 221-976-6
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
L-Leu-L-Leu | H-LEU-LEU-OH | H-L-Leu-L-Leu-OH | (2S)-2-[[(2S)-2-amino-4-methylpentanoyl]amino]-4-methylpentanoic acid | Ethylenediamine, N,N,N',N'-tetraethyl- | Histimin | AKOS010420853 | N-L-Leucyl-L-leucine | (2S)-2-[[(2S)-2-azaniumyl-4-methylpentanoyl]
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
L121432-1g
2
$57.90
5g
L121432-5g
3
$200.90
10g
L121432-10g
2
$341.90
25g
L121432-25g
2
$823.90
Enter a quantity for the sizes you want to add.
🧪

Why this grade

≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at -20°C Ships Ice chest + Ice pads Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
L-Leu-L-Leu | H-LEU-LEU-OH | H-L-Leu-L-Leu-OH | (2S)-2-[[(2S)-2-amino-4-methylpentanoyl]amino]-4-methylpentanoic acid | Ethylenediamine, N, N, N', N'-tetraethyl- | Histimin | AKOS010420853 | N-L-Leucyl-L-leucine | (2S)-2-[[(2S)-2-azaniumyl-4-methylpentanoyl]
Specifications & Purity
≥98%
Biochemical and Physiological Mechanisms
Leucylleucine (Leu-Leu) may be used to study the functionality of dileucine motifs such as the motif responsible for internalization and targeting of vesicular acetylcholine transporter and clathrin adaptors AP-1 and AP-2
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%
Names and Identifiers
Pubchem Sid504755103
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504755103
Canonical SmilesCC(C)CC(C(=O)NC(CC(C)C)C(=O)O)N
IUPAC Name(2S)-2-[[(2S)-2-amino-4-methylpentanoyl]amino]-4-methylpentanoic acid
InChIKeyLCPYQJIKPJDLLB-UWVGGRQHSA-N
INCHI1S/C12H24N2O3/c1-7(2)5-9(13)11(15)14-10(12(16)17)6-8(3)4/h7-10H,5-6,13H2,1-4H3,(H,14,15)(H,16,17)/t9-,10-/m0/s1
Isomeric SMILES CC(C)C[C@@H](C(=O)N[C@@H](CC(C)C)C(=O)O)N
WGK Germany 3
Molecular Weight 244.33
Reaxy-Rn 1727875
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1727875&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassAmino acids, peptides, and analogues
Intermediate Tree Nodes Not available
Direct ParentPeptides
Alternative Parents Leucine and derivatives  N-acyl-alpha amino acids  Methyl-branched fatty acids  Amino acids  Propargyl-type 1,3-dipolar organic compounds  Monocarboxylic acids and derivatives  Carboxylic acids  Carboximidic acids  Organopnictogen compounds  Organic oxides  Monoalkylamines  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Alpha peptide - Leucine or derivatives - N-acyl-alpha-amino acid - N-acyl-alpha amino acid or derivatives - Alpha-amino acid or derivatives - Branched fatty acid - Methyl-branched fatty acid - Fatty acyl - Fatty acid - Amino acid or derivatives - Amino acid - Carboximidic acid - Carboximidic acid derivative - Carboxylic acid - Monocarboxylic acid or derivatives - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Organic oxide - Organic oxygen compound - Primary aliphatic amine - Amine - Organic nitrogen compound - Hydrocarbon derivative - Organonitrogen compound - Organooxygen compound - Organopnictogen compound - Primary amine - Carbonyl group - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as peptides. These are compounds containing an amide derived from two or more amino carboxylic acid molecules (the same or different) by formation of a covalent bond from the carbonyl carbon of one to the nitrogen atom of another.
External Descriptors dipeptide
3D Structure
Interactive Chemical Structure Model





Associated Targets(Human)
SLC15A1 Tchem Oligopeptide transporter small intestine isoform (922 Activities)
Activity TypeRelationActivity valueUnitsAction TypeJournalPubMed IddoiAssay Aladdin ID
Mechanisms of Action
Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

6 results found

Lot NumberCertificate TypeDateItem
C1929081Certificate of AnalysisJan 26, 2023 L121432
J2317045Certificate of AnalysisJan 26, 2023 L121432
B2311669Certificate of AnalysisSep 08, 2022 L121432
B2311674Certificate of AnalysisSep 08, 2022 L121432
B2311679Certificate of AnalysisSep 08, 2022 L121432
B2311682Certificate of AnalysisSep 08, 2022 L121432
Chemical and Physical Properties
Molecular Weight244.330 g/mol
XLogP3-1.500
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count4
Rotatable Bond Count7
Exact Mass244.179 Da
Monoisotopic Mass244.179 Da
Topological Polar Surface Area92.400 Ų
Heavy Atom Count17
Formal Charge0
Complexity264.000
Isotope Atom Count0
Defined Atom Stereocenter Count2
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
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