4-Bromo-2-furaldehyde - ≥97% , CAS No.21921-76-6

CAS: 21921-76-6 Cat. No.: B151893 Molecular Weight: 174.98 EC Number: 626-307-5
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
MFCD00671504 | Z898215000 | 4-bromo-furan-2-carbaldehyde | 4-bromofuran-2-carbaldehyde | 4-Bromo-2-furaldehyde | 4-bromo-2-furancarboxyaldehyde | 4-bromo-furan-2-carboxaldehyde | 4-Bromofuran-2-carboxaldehyde | 2-Furancarboxaldehyde, 4-bromo- | 4-Bromo-2-
Storage
Store at -20°C,Argon charged
Shipped In
Ice chest + Ice pads
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
250mg
B151893-250mg
3

$17.90

$26.90
Save $9.00 (33.46%)
1g
B151893-1g
1

$38.90

$58.90
Save $20.00 (33.96%)
5g
B151893-5g
1

$191.90

$287.90
Save $96.00 (33.34%)
25g
B151893-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.

$670.90

$1,006.90
Save $336.00 (33.37%)
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Why this grade

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

🌡

Storage & shipping

Store at -20°C,Argon charged Ships Ice chest + Ice pads 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 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Building block for the synthesis of furanyl cyclobutenediones, potent G-protein coupled receptor antagonists.

Specifications

Synonyms
MFCD00671504 | Z898215000 | 4-bromo-furan-2-carbaldehyde | 4-bromofuran-2-carbaldehyde | 4-Bromo-2-furaldehyde | 4-bromo-2-furancarboxyaldehyde | 4-bromo-furan-2-carboxaldehyde | 4-Bromofuran-2-carboxaldehyde | 2-Furancarboxaldehyde, 4-bromo- | 4-Bromo-2-
Specifications & Purity
≥97%
Storage
Store at -20°C, Argon charged
Shipped In
Ice chest + Ice pads
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥97%
Names and Identifiers
Canonical SmilesC1=C(OC=C1Br)C=O
IUPAC Name4-bromofuran-2-carbaldehyde
InChIKeyMRGBBKQOSUHKPF-UHFFFAOYSA-N
INCHI1S/C5H3BrO2/c6-4-1-5(2-7)8-3-4/h1-3H
Isomeric SMILES C1=C(OC=C1Br)C=O
WGK Germany 3
Molecular Weight 174.98
Reaxy-Rn 1280977
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1280977&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 bromides  Heteroaromatic compounds  Furans  Oxacyclic compounds  Organobromides  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic heteromonocyclic compounds
Substituents Aryl-aldehyde - Aryl halide - Aryl bromide - Heteroaromatic compound - Furan - Oxacycle - Organoheterocyclic compound - Organic oxide - Hydrocarbon derivative - Organobromide - 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





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.

12 results found

Lot NumberCertificate TypeDateItem
I1814020Certificate of AnalysisApr 15, 2026 B151893
I1814019Certificate of AnalysisApr 15, 2026 B151893
A2426403Certificate of AnalysisJan 05, 2024 B151893
A2426404Certificate of AnalysisJan 05, 2024 B151893
A2426405Certificate of AnalysisJan 05, 2024 B151893
A2426406Certificate of AnalysisJan 05, 2024 B151893
A2426408Certificate of AnalysisJan 05, 2024 B151893
F2604123Certificate of AnalysisJan 05, 2024 B151893
G2507078Certificate of AnalysisJan 05, 2024 B151893
J2409202Certificate of AnalysisJan 05, 2024 B151893
F2207354Certificate of AnalysisMar 22, 2022 B151893
F2208008Certificate of AnalysisMar 22, 2022 B151893

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Chemical and Physical Properties
SensitivityHeat sensitive;Air sensitive
Flash Point(°F)>230 °F
Flash Point(°C)>110 °C
Melt Point(°C)54-58°C
Molecular Weight174.980 g/mol
XLogP31.500
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count2
Rotatable Bond Count1
Exact Mass173.932 Da
Monoisotopic Mass173.932 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
Documents & Articles
Citations of This Product
References
1. Wang Dongdong, Al-Mamun Mohammad, Gong Wanbing, Lv Yang, Chen Chun, Lin Yue, Wang Guozhong, Zhang Haimin, Zhao Huijun.  (2021)  Converting Co2+-impregnated g-C3N4 into N-doped CNTs-confined Co nanoparticles for efficient hydrogenation rearrangement reactions of furanic aldehydes.  Nano Research,  14  (8): (2846-2852).  [PMID:] [10.1007/s12274-021-3298-y]
Solution Calculators
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