L-Methionine 4-nitroanilide - ≥98% , CAS No.6042-04-2

CAS: 6042-04-2 Cat. No.: L331590 Molecular Weight: 269.32
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
MFCD00063424 | HY-W141962 | F10962 | Methionine 4-nitroanilide | (S)-2-Amino-4-(methylthio)-N-(4-nitrophenyl)butanamide | L-Methionine 4-nitroanilide | (2S)-2-amino-4-(methylsulfanyl)-N-(4-nitrophenyl)butanamide | H-Met-Pna | AS-46933 | AKOS010392055 | N-
Storage
Store at -20°C
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
L331590-250mg
3
$35.90
1g
L331590-1g
3
$95.90
5g
L331590-5g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$465.90
Enter a quantity for the sizes you want to add.
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Why this grade

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

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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.

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Literature proof

Cited in 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
MFCD00063424 | HY-W141962 | F10962 | Methionine 4-nitroanilide | (S)-2-Amino-4-(methylthio)-N-(4-nitrophenyl)butanamide | L-Methionine 4-nitroanilide | (2S)-2-amino-4-(methylsulfanyl)-N-(4-nitrophenyl)butanamide | H-Met-Pna | AS-46933 | AKOS010392055 | N-
Specifications & Purity
≥98%
Biochemical and Physiological Mechanisms
L-Methionine p-nitroanilide is a hMetAP2 substrate.
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%
Product Properties
pKapKₐ: 12.72 (Predicted), pKₐ: 6.95 (Predicted)
Names and Identifiers
Pubchem Sid504757361
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504757361
Canonical SmilesCSCCC(C(=O)NC1=CC=C(C=C1)[N+](=O)[O-])N
IUPAC Name(2S)-2-amino-4-methylsulfanyl-N-(4-nitrophenyl)butanamide
InChIKeyPLBWRAWSHVJPTL-JTQLQIEISA-N
INCHI1S/C11H15N3O3S/c1-18-7-6-10(12)11(15)13-8-2-4-9(5-3-8)14(16)17/h2-5,10H,6-7,12H2,1H3,(H,13,15)/t10-/m0/s1
Isomeric SMILES CSCC[C@@H](C(=O)NC1=CC=C(C=C1)[N+](=O)[O-])N
WGK Germany 3
Molecular Weight 269.32
Reaxy-Rn 2384586
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2384586&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.

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 Amino acids and derivatives - Alpha amino acids and derivatives
Direct ParentMethionine and derivatives
Alternative Parents Alpha amino acid amides  Anilides  Nitrobenzenes  N-arylamides  Nitroaromatic compounds  Fatty amides  Secondary carboxylic acid amides  Propargyl-type 1,3-dipolar organic compounds  Sulfenyl compounds  Dialkylthioethers  Organic oxoazanium compounds  Organic oxides  Organic zwitterions  Organopnictogen compounds  Monoalkylamines  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Methionine or derivatives - Alpha-amino acid amide - Nitrobenzene - Anilide - Nitroaromatic compound - N-arylamide - Monocyclic benzene moiety - Fatty amide - Benzenoid - Fatty acyl - Carboxamide group - C-nitro compound - Secondary carboxylic acid amide - Organic nitro compound - Dialkylthioether - Organic 1,3-dipolar compound - Propargyl-type 1,3-dipolar organic compound - Sulfenyl compound - Thioether - Allyl-type 1,3-dipolar organic compound - Organic oxoazanium - Organic oxygen compound - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Primary amine - Organic oxide - Amine - Primary aliphatic amine - Organopnictogen compound - Organic nitrogen compound - Carbonyl group - Hydrocarbon derivative - Organic zwitterion - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as methionine and derivatives. These are compounds containing methionine or a derivative thereof resulting from reaction of methionine at the amino group or the carboxy group, or from the replacement of any hydrogen of glycine by a heteroatom.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





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.

2 results found

Lot NumberCertificate TypeDateItem
A2330058Certificate of AnalysisOct 29, 2025 L331590
A2330064Certificate of AnalysisOct 29, 2025 L331590
Chemical and Physical Properties
SolubilitySoluble in ethanol (50 mg/ml, clear light yellow to green solution).
Refractive Indexn20D1.64 (Predicted)
Boil Point(°C)517.63° C at 760 mmHg (Predicted)
Melt Point(°C)78-88° C
Molecular Weight269.320 g/mol
XLogP31.100
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count5
Rotatable Bond Count5
Exact Mass269.083 Da
Monoisotopic Mass269.083 Da
Topological Polar Surface Area126.000 Ų
Heavy Atom Count18
Formal Charge0
Complexity288.000
Isotope Atom Count0
Defined Atom Stereocenter Count1
Undefined Atom Stereocenter Count0
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. Mingyue Zhang, Jiani Pu, Yushan Cui, Jianan Sun, Hao Dong, Xiangzhao Mao.  (2024)  In Silico Enzymolysis-Guided Mining of Aminopeptidases with Molecular Insights into Their Substrate Specificity Mechanism.  JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,      [PMID:39635764] [10.1021/acs.jafc.4c07713]
2. Hualing Li, Qi Hu, Nuo Xu, Xueting Shao, Yuxin Liu, Yuxin Hou, Binjie Wang, Jiye Wang, Jianzhuang Yao, Shurong Hou, Xiabin Chen.  (2026)  Leucine Aminopeptidase from Xanthomonas oryzae pv. oryzae with Esterase Activity Toward Heroin: Biochemical and Catalytic Insights.  Biomolecules,  16  (2): (298).  [PMID:41750366] [10.3390/biom16020298]
Solution Calculators
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