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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 643406Generated: October 23, 2026

4,5-Dimethyl-2-furaldehyde

4,5-DIMETHYLFURFURAL · Furfural Impurity 19 · 4,5-Dimethylfurfural>4,5-DIMETHYL-2-FURALDEHYD · 4,5-Dimethyl-2-furaldehyde · 4,5-Dimethyl-2-furaldehyde,97% · 4,5-diMethylfuran-2-carbaldehyde · 4,5-DIMETHYL-2-FURANCARBOXALDEHYD · 4,5-DIMETHYL-2-FURANCARBOXALDEHYDE

https://huagongshe.com/en/chemical/643406

4,5-Dimethyl-2-furaldehyde molecular structure

Identifiers & Physical Properties

CAS No.52480-43-0
Molecular formulaC7H8O2
Average molar mass124.14 g/mol
Monoisotopic mass124.0524295 g/mol
SMILESCc1cc(C=O)oc1C
InChIKeyJPTPEPVCVXGNJM-UHFFFAOYSA-N
PubChem CID643406
EC No.672-145-3
DTXSIDDTXSID70349175

Chemical & Physical Properties

XLogP1.5
Topological polar surface area30.2
Hydrogen bond donors0
Hydrogen bond acceptors2
Rotatable bonds1
Heavy atoms9
Formal charge0
Complexity111
Boiling point98-100 °C/12 mmHg (lit.)
Density1.016 g/mL at 25 °C (lit.)
Refractive indexn20/D 1.529(lit.)
Flash point151 °F
Storage conditionsKeep in dark place,Inert atmosphere,Room temperature
Physical stateclear liquid
ColorColorless to Yellow
SensitivityAir & Light Sensitive
BRN107585
InChI1S/C7H8O2/c1-5-3-7(4-8)9-6(5)2/h3-4H,1-2H3
InChIKeyJPTPEPVCVXGNJM-UHFFFAOYSA-N
SMILESCc1cc(C=O)oc1C
CAS DataBase Reference52480-43-0(CAS DataBase Reference)
UNSPSC Code12352100
NACRESNA.22
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH227-H315-H319
GHS precautionary statementsP210e-P280a-P305+P351+P338-P501a-P210-P280-P370+P378-P403+P235-P501
Personal protective equipment (PPE)Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Hazard symbolsXi
Risk statements (R)36/38
Safety statements (S)24/25-37-26-23
Water hazard class (WGK)3
Customs code29321900
Storage class10 - Combustible liquids

Safety & Regulations

GHS classificationWarningH315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 5 reports by companies from 2 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard Classes and CategoriesSkin Irrit. 2 (100%)
Personal protective equipment (PPE)Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Water hazard class (WGK)3
Customs code29321900
Risk statements (R)36/38
Signal wordWarning
GHS pictogramGHS07
Hazard symbolsXi
Safety statements (S)24/25-37-26-23
Storage class10 - Combustible liquids
GHS hazard statementsH227-H315-H319
GHS precautionary statementsP210e-P280a-P305+P351+P338-P501a-P210-P280-P370+P378-P403+P235-P501

Applications & Uses

Uses

2,6-Dimethyl-4-pyrrone has been reported to undergo photochemical rearrangement to afford 4,5-dimethyl-2-furaldehyde. Mechanism of this photorearrangement has been described.

General Description

2,6-Dimethyl-4-pyrrone has been reported to undergo photochemical rearrangement to afford 4,5-dimethyl-2-furaldehyde. Mechanism of this photorearrangement has been described.