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1,3-Difluorobenzene

HCID 9741
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Basic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
372-18-9
Standard SMILES
Fc1cccc(F)c1
InChIKey
UEMGWPRHOOEKTA-UHFFFAOYSA-N
Molecular formula
C6H4F2
Average molar mass
114.09 g/mol
Monoisotopic mass
114.02810645

Overview

1,3-difluorobenzene is a difluorobenzene carrying fluoro groups at positions 1 and 3.

Names & identifiers

Preferred name
1,3-Difluorobenzene
IUPAC
1,3-difluorobenzene
English name
1,3-Difluorobenzene
Molecular formula
C6H4F2
Molecular weight
114.09

Names & synonyms

1,3-DIFLUOROBENZENE372-18-9m-DifluorobenzeneBenzene, m-difluoro-VO3C26WOC2NSC-10285CHEBI:38584DTXSID50190682RefChem:72668DTXCID90113173206-746-5Benzene, 1,3-difluoro-
Show more names
1,3-DFB1,3-DifLDIFLOUROBENZENEm-difluoro-benzenm-Difluro Benzene3-DifluoroBenzene1?-Difluorobenzene1,3-DIFLUOROBENZEN
2,4-difluorobenzenemeta-Difluorobenzene1,3-DifluorbenzolVoriconazole Impurity 392,6-difluorobenzeneBenzene,3-difluoro-MFCD00000327WLN: FR CF

Database identifiers

CAS
372-18-9
PubChem CID
9741
DTXSID
DTXSID50190682
ChEBI
CHEBI:38584
UNII
VO3C26WOC2
EC Number
206-746-5
Nikkaji
J43.475B

Properties

Computed structural properties

XLogP
2.4
Topological polar surface area
0 Ų
Hydrogen bond donors
0
Hydrogen bond acceptors
2
Rotatable bonds
0
Heavy atoms
8
Formal charge
0
Complexity
64.9

Experimental & physicochemical properties

SpringerMaterials Properties13C nuclear magnetic resonance spectrum
PesticidesEnvironmental transformation -> Pesticide transformation products (metabolite, successor)
LogP2.33

Physicochemical properties

Melting point
-59 °C · -59 °C
Boiling point
83 °C · 83 °C
Density
1.16 · 1.16
vapor pressure
11.034 · 11.034-19.924kPa at 20-38.2℃
refractive index
1.44 · 1.44
Flash point
-5 °C · -5 °C
storage temp.
Flammables area
solubility
1.1 g/l · 1.1g/l
form
clear liquid
Specific Gravity
1.163 · 1.163
color

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 4 items

Danger

H225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]

P210, P233, P240, P241, P242, P243, P261, P264+P265, P271, P280, P303+P361+P353, P304+P340, P305+P351+P338, P317, P337+P317, P370+P378, P403+P235, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 58 reports by companies from 8 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory Information · 2 items

Chemical: Benzene, 1,3-difluoro-

REACH registered substance: 1,3-difluorobenzene (EC: 206-746-5)

Hazard Classes and CategoriesFlam. Liq. 2 (100%)

Safety data

PPE
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
wgk
1
rtecs
CZ5652000
ridadr
UN 1993 3/PG 2
hs_code
29036990
risk_code
11-20-2017/11/20
Signal word
Danger
Symbol(GHS)
GHS02
hazard_code
F,Xn
hazard_note
Highly Flammable
safety_code
7-16-29-33-7/9
hazard_class
3

Chemistry & industry

Uses & manufacturing

Use ClassificationEnvironmental transformation -> Pesticide transformation products (metabolite, successor)
Applications · 2 items

Uses1,3-Difluorobenzene has been extensively used in the synthesis of pharmaceutical and pesticide intermediate. For example, it can be used for the synthesis of fluorinated medicine such as Fluconazole, etc. and pesticide (Flucycloxuron, Diflubenzuro, etc.). It can also be used to synthesize liquid crystal materials.

UsesIt is used in the laser induced fluorencence matrix study of 1,3-difluorobenzene radical cation. It is also used synthesis of 1,2,3-triazole containing fluconazole analogues.

Upstream & downstream products

Upstream raw materials

Sodium nitriteFluoroboric acidHydrochloric acidm-Phenylenediamine3-NitroanilineBenzene, 1,3-difluoro-2-(triMethylsilyl)-2,6-Difluoronitrobenzene2,4-Difluorophenylboronic acid2,4-Difluorobenzotrifluoride

Downstream products

2,4-Difluoronitrobenzene

Related reactions

195 records
New reaction record
HRID 42033 reaction equation
HRID 42033As reactantuspto-grants-2013_09
HRID 54979 reaction equation
HRID 54979As reactantuspto-grants-1997_04
HRID 55630 reaction equation
HRID 55630As reactantuspto-grants-1997_04
HRID 89862 reaction equation
HRID 89862As reactantTraining data from https://doi.org/10.1039/C8SC04228D (2/10)
HRID 91213 reaction equation
HRID 91213As reactantTraining data from https://doi.org/10.1039/C8SC04228D (2/10)
HRID 95687 reaction equation
HRID 95687As reactantTraining data from https://doi.org/10.1039/C8SC04228D (2/10)
HRID 138085 reaction equation
HRID 138085As reactantTraining data from https://doi.org/10.1039/C8SC04228D (9/10)
HRID 139748 reaction equation
HRID 139748As reactantTraining data from https://doi.org/10.1039/C8SC04228D (9/10)
Page 1 of 25

Compound notes

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On this pageBasic informationOverviewNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
More actions
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Colorless to Light yellow to Light orange
Water Solubility
insoluble
Specific Heat Capacity
1.39 J/ · Cp(liquid): 1.39 J/(g·K), at 25℃
BRN
1904537 · 1904537
Henry's Law Constant
3.6 · 3.6×10-3 mol/(m3Pa) at 25℃, Gharagheizi et al. (2012)
Dielectric constant
5.24 · 5.2400000000000002
InChI
1S/C6H4F2/c7-5-2-1-3-6(8)4-5/h1-4H
InChIKey
UEMGWPRHOOEKTA-UHFFFAOYSA-N
SMILES
Fc1cccc(F)c1
LogP
2.21 · 2.21-2.52 at 25℃ and pH6.5
CAS DataBase Reference
372 · 372-18-9(CAS DataBase Reference)
EWG's Food Scores
1 · 1
FDA UNII
3 C26WOC2 · VO3C26WOC2
NIST Chemistry Reference
1 · Benzene, 1,3-difluoro-(372-18-9)
Comptox DTXSID
50190682 · DTXSID50190682
UNSPSC Code
12352100 · 12352100
NACRES
22 · NA.22
Symbol(GHS)
2 · GHS02
Signal word
Danger
Hazard statements
333 · H333-H225
Precautionary statements
501 · P501-P240-P210-P233-P243-P241-P242-P280-P370+P378-P304+P312-P303+P361+P353-P403+P235
PPE
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes
F,Xn
Risk Statements
11 · 11-20-2017/11/20
Safety Statements
7 · 7-16-29-33-7/9
RIDADR
1993 · UN 1993 3/PG 2
WGK Germany
1 · 1
RTECS
5652000 · CZ5652000
Hazard Note
Highly Flammable
HazardClass
3 · 3
PackingGroup
II
HS Code
29036990 · 29036990
Storage Class
3 · 3 - Flammable liquids
Hazard Classifications
2 · Flam. Liq. 2
REACH Registrations
Active
Limited Quantities
1 L · 1.0 L (0.3 gallon) (liquid)
Excepted Quantities
Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
Storage Class
3 - Flammable liquids
packing_group
II
Hazard statements
H333-H225
Limited Quantities
1.0 L (0.3 gallon) (liquid)
Excepted Quantities
Max Inner Pack (30g or 30ml) and Max Outer Pack (500g or 500ml)
REACH Registrations
Active
Hazard Classifications
Flam. Liq. 2
Precautionary statements
P501-P240-P210-P233-P243-P241-P242-P280-P370+P378-P304+P312-P303+P361+P353-P403+P235
2,6-Difluorophenol
1-Bromo-2,4-difluorobenzene
Fluconazole
6-Fluoro-3-(4-piperidinyl)-1,2-benzisoxazole
Risperidone
3,5-Difluorobenzoic acid
3-(2',4'-Difluorophenyl)-3-oxopropanenitrile
2,4-Difluorophenylacetic acid
6-Fluoro-3-(4-piperidinyl)-1,2-benzisoxazole hydrochloride
2',4'-Difluoroacetophenone
3-Fluorobenzyloxybenzene
1,3-Propanediol, 2-[2-(2,4-difluorophenyl)-2-propen-1-yl]-

Additional notes

DefinitionChEBI: A difluorobenzene carrying fluoro groups at positions 1 and 3.