Ethyl 5-methylisoxazole-3-carboxylate - ≥95% , CAS No.3209-72-1

CAS: 3209-72-1 Cat. No.: E134920 Molecular Weight: 155.15 EC Number: 221-720-3
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
FT-0626133 | J-018631 | AS-5027 | SY061617 | AMY21973 | DTXSID60185887 | J-521148 | STR09384 | AKOS003672832 | Ethyl5-methylisoxazole-3-carboxylate | BB 0258841 | Ethyl 5-methylisoxazol-3-carboxylate | 5-Methyl-isoxazole-3-carboxylic acid ethyl ester | BB
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
200mg
E134920-200mg
1
$9.90
1g
E134920-1g
3
$16.90
5g
E134920-5g
2
$49.90
25g
E134920-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$247.90
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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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
FT-0626133 | J-018631 | AS-5027 | SY061617 | AMY21973 | DTXSID60185887 | J-521148 | STR09384 | AKOS003672832 | Ethyl5-methylisoxazole-3-carboxylate | BB 0258841 | Ethyl 5-methylisoxazol-3-carboxylate | 5-Methyl-isoxazole-3-carboxylic acid ethyl ester | BB
Specifications & Purity
≥95%
Storage
Room temperature
Shipped In
Normal
Purity
≥95%
Names and Identifiers
Pubchem Sid504755093
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504755093
Canonical SmilesCCOC(=O)C1=NOC(=C1)C
IUPAC Nameethyl 5-methyl-1,2-oxazole-3-carboxylate
InChIKeyOCCIGHIQVMLYBZ-UHFFFAOYSA-N
INCHI1S/C7H9NO3/c1-3-10-7(9)6-4-5(2)11-8-6/h4H,3H2,1-2H3
Isomeric SMILES CCOC(=O)C1=NOC(=C1)C
WGK Germany 3
Molecular Weight 155.15
Reaxy-Rn 4191
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=4191&ln=

Documentation

📋 Safety Data Sheet (SDS)

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

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✅ 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
SuperclassOrganoheterocyclic compounds
ClassAzoles
SubclassIsoxazoles
Intermediate Tree Nodes Not available
Direct ParentIsoxazoles
Alternative Parents Heteroaromatic compounds  Carboxylic acid esters  Oxacyclic compounds  Monocarboxylic acids and derivatives  Azacyclic compounds  Organopnictogen compounds  Organooxygen compounds  Organonitrogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Heteroaromatic compound - Isoxazole - Carboxylic acid ester - Oxacycle - Azacycle - Monocarboxylic acid or derivatives - Carboxylic acid derivative - Organic nitrogen compound - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Organonitrogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as isoxazoles. These are heterocyclic organic compounds containing an isoxazole moiety, with a structure characterized by a five-member aromatic ring with one oxygen atom and one nitrogen atom at ring positions 1 and 2, respectively.
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
L2411506Certificate of AnalysisJun 22, 2024 E134920
L2411507Certificate of AnalysisJun 22, 2024 E134920
G1506067Certificate of AnalysisMay 09, 2023 E134920
G2101142Certificate of AnalysisApr 14, 2023 E134920
G2101140Certificate of AnalysisApr 14, 2023 E134920
Chemical and Physical Properties
SolubilityIt is insoluble in water.
Flash Point(°F)228.2 °F
Flash Point(°C)109 °C
Boil Point(°C)77-79°/0.5mm
Melt Point(°C)27-31°C
Molecular Weight155.150 g/mol
XLogP31.400
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count4
Rotatable Bond Count3
Exact Mass155.058 Da
Monoisotopic Mass155.058 Da
Topological Polar Surface Area52.300 Ų
Heavy Atom Count11
Formal Charge0
Complexity149.000
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
Solution Calculators
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