2-Chloroacetoacetic Acid Methyl Ester - ≥95%(GC) , CAS No.4755-81-1

CAS: 4755-81-1 Cat. No.: M135839 Molecular Weight: 150.56 Beilstein Registry Number: 3(4)1549 EC Number: 225-286-6
AVAILABLE TO ORDER
GRADE & PURITY ≥95%(GC)
Synonyms
FT-0635430 | EINECS 225-286-6 | Tetrabromophthalic Anhydride (purified by sublimation) | METHYL 2-CHLORO-3-OXOBUTYRATE | 2-chloroacetoacetate methyl ester | methyl-2-chloroacetoacetate | GYQRIAVRKLRQKP-UHFFFAOYSA- | SY051760 | Methyl-alpha-Chloroacetoacet
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
M135839-5g
2
$9.90
25g
M135839-25g
2
$10.90
100g
M135839-100g
3

$19.90

$29.90
Save $10.00 (33.44%)
500g
M135839-500g
2

$86.90

$130.90
Save $44.00 (33.61%)
Enter a quantity for the sizes you want to add.
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Why this grade

≥95%(GC) 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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

It was used in one-pot synthesis of 2-arylimidazole-4-carboxylic acids. It was also used in synthesis of 3,5-disubstituted 1,2,4-triazoles.

Specifications

Synonyms
FT-0635430 | EINECS 225-286-6 | Tetrabromophthalic Anhydride (purified by sublimation) | METHYL 2-CHLORO-3-OXOBUTYRATE | 2-chloroacetoacetate methyl ester | methyl-2-chloroacetoacetate | GYQRIAVRKLRQKP-UHFFFAOYSA- | SY051760 | Methyl-alpha-Chloroacetoacet
Specifications & Purity
≥95%(GC)
Storage
Room temperature
Shipped In
Normal
Purity
≥95%(GC)
Names and Identifiers
Pubchem Sid504756613
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504756613
Canonical SmilesCC(=O)C(C(=O)OC)Cl
IUPAC Namemethyl 2-chloro-3-oxobutanoate
InChIKeyGYQRIAVRKLRQKP-UHFFFAOYSA-N
INCHI1S/C5H7ClO3/c1-3(7)4(6)5(8)9-2/h4H,1-2H3
Isomeric SMILES CC(=O)C(C(=O)OC)Cl
WGK Germany 3
UN Number 1760
Molecular Weight 150.56
Beilstein 3(4)1549
Reaxy-Rn 1757494
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1757494&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
ClassKeto acids and derivatives
SubclassBeta-keto acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentBeta-keto acids and derivatives
Alternative Parents Fatty acid esters  1,3-dicarbonyl compounds  Methyl esters  Alpha-halocarboxylic acid derivatives  Alpha-chloroketones  Monocarboxylic acids and derivatives  Organochlorides  Organic oxides  Hydrocarbon derivatives  Alkyl chlorides  
Molecular FrameworkAliphatic acyclic compounds
Substituents Beta-keto acid - Fatty acid ester - 1,3-dicarbonyl compound - Fatty acyl - Alpha-halocarboxylic acid derivative - Alpha-halocarboxylic acid or derivatives - Alpha-haloketone - Alpha-chloroketone - Methyl ester - Ketone - Carboxylic acid ester - Monocarboxylic acid or derivatives - Carboxylic acid derivative - Organochloride - Organohalogen compound - Carbonyl group - Alkyl halide - Organooxygen compound - Organic oxygen compound - Alkyl chloride - Organic oxide - Hydrocarbon derivative - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as beta-keto acids and derivatives. These are organic compounds containing an aldehyde substituted with a keto group on the C3 carbon atom.
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.

5 results found

Lot NumberCertificate TypeDateItem
E2231035Certificate of AnalysisJan 04, 2026 M135839
E2231059Certificate of AnalysisJan 04, 2026 M135839
E2231061Certificate of AnalysisJan 04, 2026 M135839
E2231062Certificate of AnalysisJan 04, 2026 M135839
H1709004Certificate of AnalysisJul 09, 2025 M135839
Chemical and Physical Properties
SolubilitySolubility in water: 50 g/L (20°C) Solubility in other solvents: soluble in organic solvents
Refractive Index1.45
Flash Point(°F)161.6 °F
Flash Point(°C)71°C(lit.)
Boil Point(°C)86 °C/21 mmHg
Molecular Weight150.560 g/mol
XLogP30.700
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count3
Rotatable Bond Count3
Exact Mass150.008 Da
Monoisotopic Mass150.008 Da
Topological Polar Surface Area43.400 Ų
Heavy Atom Count9
Formal Charge0
Complexity132.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count1
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Solution Calculators
Reviews

Customer Reviews

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