N-(Methoxycarbonyl) Maleimide - ≥98% , CAS No.55750-48-6

CAS: 55750-48-6 Cat. No.: N135983 Molecular Weight: 155.11 Beilstein Registry Number: 1450640 EC Number: 259-792-3
AVAILABLE TO ORDER
GRADE & PURITY ≥98%
Synonyms
methyl 2,5-dioxo-2H-pyrrole-1(5H)-carboxylate | Z1255486023 | n-methoxycarbonylmaleinimide | EINECS 259-792-3 | CHLORPROMAZINE [USP MONOGRAPH] | FT-0671185 | M2333 | AMY362 | Methyl 2,5-dioxo-2,5-dihydro-1H-pyrrole-1-carboxylate # | 1,2-PROPANEDIOL, 3-(4-
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice
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Size
Status
Price
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250mg
N135983-250mg
3

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1g
N135983-1g
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5g
N135983-5g
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10g
N135983-10g
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25g
N135983-25g
2

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100g
N135983-100g
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$486.90

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Why this grade

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

🌡

Storage & shipping

Store at 2-8°C,Argon charged Ships Wet ice Check lot-specific COA for exact specifications.

📋

Quality documents

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

📚

Literature proof

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

Overview

For the introduction of the maleimide group in peptides, amino acids and amines.

Specifications

Synonyms
methyl 2, 5-dioxo-2H-pyrrole-1(5H)-carboxylate | Z1255486023 | n-methoxycarbonylmaleinimide | EINECS 259-792-3 | CHLORPROMAZINE [USP MONOGRAPH] | FT-0671185 | M2333 | AMY362 | Methyl 2, 5-dioxo-2, 5-dihydro-1H-pyrrole-1-carboxylate # | 1, 2-PROPANEDIOL, 3-(4-
Specifications & Purity
≥98%
Storage
Store at 2-8°C, Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥98%
Names and Identifiers
Pubchem Sid504759346
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504759346
Canonical SmilesCOC(=O)N1C(=O)C=CC1=O
IUPAC Namemethyl 2,5-dioxopyrrole-1-carboxylate
InChIKeyLLAZQXZGAVBLRX-UHFFFAOYSA-N
INCHI1S/C6H5NO4/c1-11-6(10)7-4(8)2-3-5(7)9/h2-3H,1H3
Isomeric SMILES COC(=O)N1C(=O)C=CC1=O
WGK Germany 3
Molecular Weight 155.11
Beilstein 1450640
Reaxy-Rn 1450638
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1450638&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
SuperclassOrganoheterocyclic compounds
ClassPyrrolines
SubclassPyrroline carboxylic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentPyrroline carboxylic acids
Alternative Parents Maleimides  N-substituted carboxylic acid imides  Methylcarbamates  Dicarboximides  Organic carbonic acids and derivatives  Azacyclic compounds  Organopnictogen compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic heteromonocyclic compounds
Substituents Pyrroline carboxylic acid - Maleimide - Carboxylic acid imide, n-substituted - Carboxylic acid imide - Dicarboximide - Methylcarbamate - Carbamic acid ester - Carbonic acid derivative - Carboxylic acid derivative - Azacycle - Organic oxygen compound - Organic nitrogen compound - Organooxygen compound - Organonitrogen compound - Carbonyl group - Hydrocarbon derivative - Organic oxide - Organopnictogen compound - Aliphatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as pyrroline carboxylic acids. These are heterocyclic compounds containing a pyrroline ring substituted by one or more carboxylic acid groups.
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.

8 results found

Lot NumberCertificate TypeDateItem
G2417111Certificate of AnalysisMay 08, 2026 N135983
C23211096Certificate of AnalysisJan 09, 2025 N135983
K2124702Certificate of AnalysisSep 11, 2023 N135983
K2124704Certificate of AnalysisSep 11, 2023 N135983
K2124721Certificate of AnalysisSep 11, 2023 N135983
K2124746Certificate of AnalysisSep 11, 2023 N135983
J1530061Certificate of AnalysisMay 10, 2023 N135983
G1719023Certificate of AnalysisFeb 07, 2023 N135983
Chemical and Physical Properties
SolubilitySoluble in methanol
SensitivityHeat & Moisture sensitive
Boil Point(°C)~242.5 °C at 760 mmHg
Melt Point(°C)64°C-68°C
Molecular Weight155.110 g/mol
XLogP3-0.300
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count4
Rotatable Bond Count1
Exact Mass155.022 Da
Monoisotopic Mass155.022 Da
Topological Polar Surface Area63.700 Ų
Heavy Atom Count11
Formal Charge0
Complexity237.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
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. Zhongyang Yu, Dawei Wang, Yuxia Qi, Jing Liu, Tian Zhou, Wei Rao, Kaiwen Hu.  (2023)  Autologous-cancer-cryoablation-mediated nanovaccine augments systematic immunotherapy.  Materials Horizons,  10  (5): (1661-1677).  [PMID:36880811] [10.1039/D3MH00092C]
2. Chi Lei, Qixiu Weng, Ping Song, Yingchun Zhu, Liangzhi Li, Lingzhao Kong, Lishi Yan.  (2026)  Thiol Modification of β-Glucosidase via N-Methoxycarbonylmaleimide for Enhancement of Catalytic Efficiency and Environmental Tolerance.  JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY,      [PMID:41703775] [10.1021/acs.jafc.5c17409]
Solution Calculators
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