DL-Leucyl-DL-phenylalanine - ≥95% , CAS No.56217-82-4

CAS: 56217-82-4 Cat. No.: B301300 Molecular Weight: 278.35
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
DL-Leucyl-DL-phenylalanine (H-DL-Leu-DL-Phe-OH) | L0038 | 2-[(2-amino-4-methylpentanoyl)amino]-3-phenylpropanoic acid | NSC524454 | NSC-524454 | T72622 | DL-Leu-DL-Phe | 2-(2-amino-4-methylpentanamido)-3-phenylpropanoic acid | AS-69592 | leucylphenylalani
Storage
Room temperature
Shipped In
Normal
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Size
Status
Price
Qty
100mg
B301300-100mg
4

$32.90

$49.90
Save $17.00 (34.07%)
250mg
B301300-250mg
3

$70.90

$106.90
Save $36.00 (33.68%)
1g
B301300-1g
5

$224.90

$337.90
Save $113.00 (33.44%)
5g
B301300-5g
2

$843.90

$1,265.90
Save $422.00 (33.34%)
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Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature Ships Normal 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.

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Literature proof

Cited in 9 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
DL-Leucyl-DL-phenylalanine (H-DL-Leu-DL-Phe-OH) | L0038 | 2-[(2-amino-4-methylpentanoyl)amino]-3-phenylpropanoic acid | NSC524454 | NSC-524454 | T72622 | DL-Leu-DL-Phe | 2-(2-amino-4-methylpentanamido)-3-phenylpropanoic acid | AS-69592 | leucylphenylalani
Specifications & Purity
≥95%
Storage
Room temperature
Shipped In
Normal
Purity
≥95%
Names and Identifiers
Pubchem Sid488189105
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488189105
Canonical SmilesCC(C)CC(C(=O)NC(CC1=CC=CC=C1)C(=O)O)N
IUPAC Name2-[(2-amino-4-methylpentanoyl)amino]-3-phenylpropanoic acid
InChIKeyKFKWRHQBZQICHA-UHFFFAOYSA-N
INCHI1S/C15H22N2O3/c1-10(2)8-12(16)14(18)17-13(15(19)20)9-11-6-4-3-5-7-11/h3-7,10,12-13H,8-9,16H2,1-2H3,(H,17,18)(H,19,20)
Isomeric SMILES CC(C)CC(C(=O)NC(CC1=CC=CC=C1)C(=O)O)N
Molecular Weight 278.35
Reaxy-Rn 2946604
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2946604&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.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic acids and derivatives
ClassCarboxylic acids and derivatives
SubclassAmino acids, peptides, and analogues
Intermediate Tree Nodes Peptides
Direct ParentDipeptides
Alternative Parents Phenylalanine and derivatives  Leucine and derivatives  N-acyl-alpha amino acids  Alpha amino acid amides  Phenylpropanoic acids  Amphetamines and derivatives  N-acyl amines  Secondary carboxylic acid amides  Amino acids  Monocarboxylic acids and derivatives  Carboxylic acids  Organic oxides  Carbonyl compounds  Organopnictogen compounds  Hydrocarbon derivatives  Monoalkylamines  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Alpha-dipeptide - Phenylalanine or derivatives - Leucine or derivatives - N-acyl-alpha-amino acid - N-acyl-alpha amino acid or derivatives - Alpha-amino acid amide - 3-phenylpropanoic-acid - Alpha-amino acid or derivatives - Amphetamine or derivatives - Monocyclic benzene moiety - Fatty amide - N-acyl-amine - Fatty acyl - Benzenoid - Amino acid or derivatives - Carboxamide group - Amino acid - Secondary carboxylic acid amide - Monocarboxylic acid or derivatives - Carboxylic acid - Hydrocarbon derivative - Primary aliphatic amine - Amine - Organic oxygen compound - Carbonyl group - Organic oxide - Organopnictogen compound - Organic nitrogen compound - Primary amine - Organonitrogen compound - Organooxygen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as dipeptides. These are organic compounds containing a sequence of exactly two alpha-amino acids joined by a peptide bond.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





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
J2229021Certificate of AnalysisAug 11, 2025 B301300
J2229037Certificate of AnalysisAug 11, 2025 B301300
J2229046Certificate of AnalysisAug 11, 2025 B301300
J2229047Certificate of AnalysisAug 11, 2025 B301300
H2125084Certificate of AnalysisJun 11, 2024 B301300
K2422095Certificate of AnalysisAug 26, 2022 B301300
Chemical and Physical Properties
Molecular Weight278.350 g/mol
XLogP3-1.100
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count4
Rotatable Bond Count7
Exact Mass278.163 Da
Monoisotopic Mass278.163 Da
Topological Polar Surface Area92.400 Ų
Heavy Atom Count20
Formal Charge0
Complexity325.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count2
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Citations of This Product
References
1. Meng Ji, Liwei Ren, Chunyuan Tian, Xuming Zhuang, Feng Luan.  (2023)  A Comparative Study of Nanobio Interaction of Zn-Doped CdTe Quantum Dots with Lactoferrin Using Different Spectroscopic Methods.  INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES,  24  (11): (9325).  [PMID:37298273] [10.3390/ijms24119325]
2. Lin Zhu, Xiu-Xiu Dong, Chun-Bin Gao, Zuoqi Gai, Yong-Xin He, Zhen-Jie Qian, Yingju Liu, Hong-Tao Lei, Yuan-Ming Sun, Zhen-Lin Xu.  (2021)  Development of a highly sensitive and selective electrochemical immunosensor for controlling of rhodamine B abuse in food samples.  FOOD CONTROL,      [PMID:] [10.1016/j.foodcont.2021.108662]
3. Jiang Mingzhou, Zhu Zhidong, Zhou Ziyu, Yan Zhiqiang, Huang Kai, Jiang Rongrong, Fan Xi, Jieensi Milayi, Pang Liewen, Wang Yiqing, Sun Xiaotian.  (2024)  A temperature-ultrasound sensitive nanoparticle delivery system for exploring central neuroinflammation mechanism in stroke-heart syndrome.  JOURNAL OF NANOBIOTECHNOLOGY,  22  (1): (1-19).  [PMID:39506743] [10.1186/s12951-024-02961-z]
4. Yan Yang, Yiling Wang, Xinran Jiang, Jiahao Mi, Dizhang Ge, Yuna Tong, Yuxuan Zhu.  (2024)  Modified Ce/Zr-MOF Nanoparticles Loaded with Curcumin for Alzheimer’s Disease via Multifunctional Modulation.  International Journal of Nanomedicine,      [PMID:39355653] [10.2147/IJN.S479242]
5. Ri-Sheng Chen, Jian-Cheng Yuan, Chong-Lan Luo, Yu Wang, Zi-Jian Chen, Ze-Shan Lin, Zhen-Lin Xu.  (2024)  Monoclonal antibody based colloidal gold immunochromatographic assay for the visual and rapid screening of profenofos.  ENVIRONMENTAL POLLUTION,      [PMID:39214446] [10.1016/j.envpol.2024.124848]
6. Mingzhou Jiang, Yiming Wang, Jinjin Zhang, Xi Fan, Milayi Jieensi, Fang Ding, Yiqing Wang, Xiaotian Sun.  (2024)  Temperature and Ultrasound-Responsive Nanoassemblies for Enhanced Organ Targeting and Reduced Cardiac Toxicity.  International Journal of Nanomedicine,      [PMID:39524922] [10.2147/IJN.S470465]
7. Chenglin Zhang, Ya Wang, Qian Zhang, Baolian Liu, Xiupei Yang.  (2025)  Ratiometric fluorescence/colorimetric sensor based on aptamer-regulated dual-functional UiO-66-TCPP for multimodal detection of β-lactoglobulin.  FOOD CHEMISTRY,      [PMID:40939391] [10.1016/j.foodchem.2025.146330]
8. Yanpeng Lin, Hangtian Wu, Jun Wang, Wanling He, Jiahui Hou, Vidmi Taolam Martin, Chencheng Zhu, Yupeng Chen, Junyuan Zhong, Bin Yu, Aiping Lu, Daogang Guan, Genggeng Qin, Weiguo Chen.  (2025)  Nicotinamide Adenine Dinucleotide-Loaded Lubricated Hydrogel Microspheres with a Three-Pronged Approach Alleviate Age-Related Osteoarthritis.  ACS Nano,      [PMID:40315404] [10.1021/acsnano.5c01184]
9. Jianshuo Su, Shufan Liu, Zhuang Ding, Cuiying Zhang, Sisi Liu, Huaizhen Zhang, Jun Han, Zhengping Wang, Min Liu, Yanna Zhao.  (2025)  Laser-Triggered Liposomal Nanoparticles Combining Antiangiogenic and Photodynamic Therapy for Ocular Neovascularization.  ACS Applied Materials & Interfaces,      [PMID:41243313] [10.1021/acsami.5c17055]
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