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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 67967Generated: October 23, 2026

2,4-Difluoronitrobenzene

2,4-DIFLUORO-1-NITROBENZENE · 2.4 DFNB · 2,4-Difluoronitroben · 3,5-diflurobenzonitrile · 2,4-Difluronitrobenzene · 2,4-Difluoronitribenzene · 2,4-DIFLUORO NITROBENZEN · 2,4-DIFLUORONITROBENZENE

https://huagongshe.com/en/chemical/67967

2,4-Difluoronitrobenzene molecular structure

Identifiers & Physical Properties

CAS No.446-35-5
Molecular formulaC6H3F2NO2
Average molar mass159.09 g/mol
Monoisotopic mass159.01318478 g/mol
SMILESO=[N+]([O-])c1ccc(F)cc1F
InChIKeyRJXOVESYJFXCGI-UHFFFAOYSA-N
PubChem CID67967
ChEMBLCHEMBL31425
EC No.207-167-0
DTXSIDDTXSID0032869

Chemical & Physical Properties

XLogP1.8
Topological polar surface area45.8
Hydrogen bond donors0
Hydrogen bond acceptors4
Rotatable bonds0
Heavy atoms11
Formal charge0
Complexity159
SpringerMaterials PropertiesOptical coefficient
Melting point9-10 °C (lit.)
Boiling point203-204 °C (lit.)
Density1.451 g/mL at 25 °C (lit.)
Vapor density>1 (vs air)
Refractive indexn20/D 1.511(lit.)
Flash point195 °F
Storage conditionsSealed in dry,Room Temperature
Physical stateclear liquid
ColorLight yellow to Brown
Specific gravity1.45
SolubilityInsoluble in water.
BRN2048034
StabilityStable. Incompatible with strong bases, strong oxidizing agents. Combustible.
InChI1S/C6H3F2NO2/c7-4-1-2-6(9(10)11)5(8)3-4/h1-3H
InChIKeyRJXOVESYJFXCGI-UHFFFAOYSA-N
SMILES[O-][N+](=O)c1ccc(F)cc1F
CAS DataBase Reference446-35-5(CAS DataBase Reference)
EWG's Food Scores1
FDA UNII6398Y1D7JS
NIST Chemistry Reference2,4-Difluoronitrobenzene(446-35-5)
EPA Substance Registry System2,4-Difluoronitrobenzene (446-35-5)
UNSPSC Code12352100
NACRESNA.22
GHS pictogramGHS06
Signal wordDanger
GHS hazard statementsH301-H315-H319-H335
GHS precautionary statementsP301+P310+P330-P302+P352-P305+P351+P338
Target organsRespiratory system
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard symbolsT,Xi,Xn
Risk statements (R)25-36/37/38-23/24/25-20/21/22
Safety statements (S)26-45-36/37/39-23
UN transport numberUN 2810 6.1/PG 1
Water hazard class (WGK)3
RTECS numberCZ5730000
Hazard NoteIrritant
TSCA inventory statusTSCA listed
Hazard class6.1Acute Tox. 3 OralEye Irrit. 2Skin Irrit. 2STOT SE 3
Packing groupIII
Customs code29049090
Storage class6.1C - Combustible acute toxic Cat.3toxic compounds or compounds which causing chronic effects
Limited quantities5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)

Safety & Regulations

GHS classificationDangerH301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]P260, P261, P262, P264, P264+P265, P270, P271, P280, P284, P301+P316, P302+P352, P304+P340, P305+P351+P338, P316, P319, P320, P321, P330, P332+P317, P337+P317, P361+P364, P362+P364, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 50 reports by companies from 10 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.H227: Combustible liquid [Warning Flammable liquids]
Hazard Classes and CategoriesAcute Tox. 3 (100%)Flammable liquids - Category 4
Personal protective equipment (PPE)Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Water hazard class (WGK)3
TSCA inventory statusTSCA listed
RTECS numberCZ5730000
UN transport numberUN 2810 6.1/PG 1
Customs code29049090
Risk statements (R)25-36/37/38-23/24/25-20/21/22
Signal wordDanger
GHS pictogramGHS06
Hazard symbolsT,Xi,Xn
hazard_noteIrritant
Safety statements (S)26-45-36/37/39-23
Hazard class6.1Acute Tox. 3 OralEye Irrit. 2Skin Irrit. 2STOT SE 3
Storage class6.1C - Combustible acute toxic Cat.3toxic compounds or compounds which causing chronic effects
Packing groupIII
Target organsRespiratory system
GHS hazard statementsH301-H315-H319-H335
Limited quantities5.0 L (1.3 gallons) (liquid) or 5.0 kg (11 lbs) (solid)
Excepted quantitiesMax Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
GHS precautionary statementsP301+P310+P330-P302+P352-P305+P351+P338

Applications & Uses

Uses

2,4-Difluoronitrobenzene has been used in the synthesis of 2,4-difluoro-5-nitrobenzenesulfonic acid via sulfonation reaction, (±)-horsfiline and resin-bound-2-arylaminobenzimidazoles.

Uses

2,4-Difluoronitrobenzene has been used in the synthesis of:2,4-difluoro-5-nitrobenzenesulfonic acid via sulfonation reaction(±)-horsfilineresin-bound 2-arylaminobenzimidazoles

Uses

2,4-Difluoronitrobenzene has been used in the synthesis of: 2,4-difluoro-5-nitrobenzenesulfonic acid via sulfonation reaction; (±)-horsfiline; resin-bound 2-arylaminobenzimidazoles.2,4-Difluoronitrobenzene is a reactant in the preparation of 4-thiazolidinone derivatives as antimicrobial agents.

General Description

Nucleophilic aromatic substitution of 2,4-difluoronitrobenzene with morpholine has been investigated using flow reactor with simulated moving bed (SMB) chromatography module.