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EINECS 206-746-5
CAS No. 372-18-9 Density 1.165 g/cm3
Solubility insoluble in water Melting Point -59 °C
Formula C6H4F2 Boiling Point 83.9 °C at 760 mmHg
Molecular Weight 114.09 . Flash Point 2.2 °C
Transport Information UN 1993 3/PG 2 Appearance clear colorless to yellowish liquid
Safety 7-16-29-33-7/9 Risk Codes 11-20
Molecular Structure Molecular Structure of 372-18-9 (1,3-Difluorobenzene) Hazard Symbols FlammableF, HarmfulXn

Benzene, 1, 3-difluoro-;Benzene, m-difluoro-;Benzene, 1,3-difluoro- (9CI);1,3-Difluoro-benzene;


1,3-Difluorobenzene Chemical Properties

Molecule structure of 1,3-Difluorobenzene (CAS NO.372-18-9):

IUPAC Name: 1,3-Difluorobenzene 
Molecular Weight: 114.092766 g/mol
Molecular Formula: C6H4F2 
Density: 1.165 g/cm3 
Melting Point: -59 °C
Boiling Point: 83.9 °C at 760 mmHg 
Flash Point: 2.2 °C
Index of Refraction: 1.448
Molar Refractivity: 26.24 cm3
Molar Volume: 97.8 cm3
Surface Tension: 26.2 dyne/cm 
Enthalpy of Vaporization: 31.1 kJ/mol
Vapour Pressure: 82.7 mmHg at 25 °C 
Storage Temp.: flammables area
Water Solubility: insoluble 
H-Bond Acceptor: 2
Exact Mass: 114.028107
MonoIsotopic Mass: 114.028107
Canonical SMILES: C1=CC(=CC(=C1)F)F
InChI: InChI=1S/C6H4F2/c7-5-2-1-3-6(8)4-5/h1-4H
EINECS: 206-746-5
Product Categories: Aromatic Hydrocarbons (substituted) & Derivatives; Fluorobenzene; Fluorine Compounds; Aryl; C6; Halogenated Hydrocarbons

1,3-Difluorobenzene Uses

 1,3-Difluorobenzene (CAS NO.372-18-9) is used as important intermediate of synthesis fluorine-containing medicine and pesticide.

1,3-Difluorobenzene Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LC50 inhalation 55gm/m3/2H (55000mg/m3) BRAIN AND COVERINGS: RECORDINGS FROM SPECIFIC AREAS OF CNS Izvestiya Sibirskogo Otdeleniya Akademii Nauk SSSR, Seriya Biologomeditsinskikh Nauk. Vol. 3, Pg. 91, 1965.

1,3-Difluorobenzene Safety Profile

Hazard Codes: FlammableF, HarmfulXn
Risk Statements: 11-20 
R11:Highly flammable. 
R20:Harmful by inhalation.
Safety Statements: 7-16-29-33-7/9 
S7:Keep container tightly closed. 
S16:Keep away from sources of ignition. 
S33:Take precautionary measures against static discharges. 
S9:Keep container in a well-ventilated place.
RIDADR: UN 1993 3/PG 2
WGK Germany: 1
RTECS: CZ5652000
Hazard Note: Highly Flammable
HazardClass: 3
PackingGroup: II
HS Code: 29036990

1,3-Difluorobenzene Specification

 1,3-Difluorobenzene (CAS NO.372-18-9) is also named as NSC 10285 ; m-Difluorobenzene ; Benzene, 1,3-difluoro- (9CI) ; Benzene, m-difluoro- . 1,3-Difluorobenzene (CAS NO.372-18-9) is clear colorless to yellowish liquid. It is toxic and flammable. It will produce toxic fluoride gas by heat. So the storage environment should be ventilate, low-temperature and dry. Keep 1,3-Difluorobenzene (CAS NO.372-18-9) separate from oxidant.

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