5-Chloro-2-furaldehyde - ≥97% , CAS No.21508-19-0

CAS: 21508-19-0 Cat. No.: D303050 Molecular Weight: 130.53 EC Number: 627-276-0
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
SCHEMBL511168 | DTXSID00944117 | DS-9137 | SY031372 | W-200218 | 5-Chloro-2-furaldehyde, 98% | 5-chlorofuran-2-carboxaldehyde | C5H3ClO2 | MFCD02752599 | 5-chlorofuran-2 carbaldehyde | 5-Chloro-2-furaldehyde | BBL100004 | EN300-18303 | 5-chlorofurfural |
Storage
Store at 2-8°C,Argon charged,Desiccated
Shipped In
Wet ice
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Size
Status
Price
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1g
D303050-1g
3

$11.90

$17.90
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5g
D303050-5g
2

$35.90

$53.90
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25g
D303050-25g
1

$120.90

$181.90
Save $61.00 (33.53%)
100g
D303050-100g
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$411.90

$617.90
Save $206.00 (33.34%)
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Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Argon charged,Desiccated Ships Wet ice 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

Product Introduction
5-Chloro-2-furaldehyde is also known as 5-chlorofurfural. It reacts with aniline and aniline hydrochloride to form bis-(phenylamino) derivatives, without the furan ring cleavage.It also undergoes coupling with ethyl acetoacetate to form the corresponding ethyl bis-acetoacetate.
Product Usage
5-Chloro-2-furaldehyde may be used as an internal standard during the analysis of furanic compounds by reversed-phase-high performance liquid chromatography–diode array detection (RP-HPLC–DAD) method.

Specifications

Synonyms
SCHEMBL511168 | DTXSID00944117 | DS-9137 | SY031372 | W-200218 | 5-Chloro-2-furaldehyde, 98% | 5-chlorofuran-2-carboxaldehyde | C5H3ClO2 | MFCD02752599 | 5-chlorofuran-2 carbaldehyde | 5-Chloro-2-furaldehyde | BBL100004 | EN300-18303 | 5-chlorofurfural |
Specifications & Purity
≥97%
Storage
Store at 2-8°C, Argon charged, Desiccated
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥97%
Names and Identifiers
Pubchem Sid504761777
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504761777
Canonical SmilesC1=C(OC(=C1)Cl)C=O
IUPAC Name5-chlorofuran-2-carbaldehyde
InChIKeyDGAUAVDWXYXXGQ-UHFFFAOYSA-N
INCHI1S/C5H3ClO2/c6-5-2-1-4(3-7)8-5/h1-3H
Isomeric SMILES C1=C(OC(=C1)Cl)C=O
Molecular Weight 130.53
Reaxy-Rn 108401
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=108401&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
SuperclassOrganic oxygen compounds
ClassOrganooxygen compounds
SubclassCarbonyl compounds
Intermediate Tree Nodes Aldehydes
Direct ParentAryl-aldehydes
Alternative Parents Aryl chlorides  Heteroaromatic compounds  Furans  Oxacyclic compounds  Organochlorides  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Aryl-aldehyde - Aryl halide - Aryl chloride - Heteroaromatic compound - Furan - Oxacycle - Organoheterocyclic compound - Organic oxide - Hydrocarbon derivative - Organochloride - Organohalogen compound - Aromatic heteromonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as aryl-aldehydes. These are compounds containing an aldehyde group directly attached to an aromatic ring.
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.

7 results found

Lot NumberCertificate TypeDateItem
E2526195Certificate of AnalysisJun 11, 2025 D303050
H2519038Certificate of AnalysisJun 11, 2025 D303050
I2126031Certificate of AnalysisJul 16, 2024 D303050
I2126032Certificate of AnalysisJul 16, 2024 D303050
I2126211Certificate of AnalysisJul 16, 2024 D303050
J2327278Certificate of AnalysisMar 18, 2021 D303050
L2318162Certificate of AnalysisMar 18, 2021 D303050
Chemical and Physical Properties
SolubilityInsoluble in water.
SensitivitySensitive to air
Boil Point(°C)70℃/10mm
Melt Point(°C)33-37℃(lit.)
Molecular Weight130.530 g/mol
XLogP31.700
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count1
Exact Mass129.982 Da
Monoisotopic Mass129.982 Da
Topological Polar Surface Area30.200 Ų
Heavy Atom Count8
Formal Charge0
Complexity94.400
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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