Cas no 1765-40-8 (2,3,4,5,6-Pentafluorobenzyl bromide)

2,3,4,5,6-Pentafluorobenzyl bromide (PFBBr) is a fluorinated benzyl bromide derivative widely used as a derivatization reagent in analytical chemistry, particularly in gas chromatography (GC) and mass spectrometry (MS). Its high reactivity with nucleophiles, such as carboxylic acids and phenols, enables efficient formation of stable, volatile derivatives for enhanced detection sensitivity. The pentafluorobenzyl group improves electron-capture detection (ECD) due to its strong electron-withdrawing properties. PFBBr is also valued for its stability and selectivity in complex matrices, making it suitable for trace analysis in environmental, pharmaceutical, and biochemical applications. Proper handling is required due to its lachrymatory and moisture-sensitive nature.
2,3,4,5,6-Pentafluorobenzyl bromide structure
1765-40-8 structure
Product Name:2,3,4,5,6-Pentafluorobenzyl bromide
CAS No:1765-40-8
MF:C7H2BrF5
MW:260.986798763275
MDL:MFCD00000299
CID:41958
PubChem ID:74484
Update Time:2025-10-29

2,3,4,5,6-Pentafluorobenzyl bromide Chemical and Physical Properties

Names and Identifiers

    • 1-(Bromomethyl)-2,3,4,5,6-pentafluorobenzene
    • Bromomethylpentafluorobenzene
    • 2,3,4,5,6-Pentafluorobenzyl bromide
    • Pentafluorobenzyl Bromide
    • α-Bromo-2,3,4,5,6-pentafluorotoluene
    • alpha-Bromo-2,3,4,5,6-pentafluorotoluene
    • PFB-Br
    • 1-Bromomethylpentafluorobenzene
    • (Bromomethyl)pentafluorobenzene
    • BENZENE, (BROMOMETHYL)PENTAFLUORO-
    • 2,3,4,5,6-pentafluorobenzylbromide
    • PFBBR
    • pentafluorobenzylbromide
    • pentafluorobromomethyl benzene
    • XDEPVFFKOVDUNO-UHFFFAOYSA-N
    • Toluene, .alpha.-bromo-2,3,4,5,6-pentafluoro-
    • BENZENE, 1-(BROMOMETHYL)-2,3,4,5,6-PENTAFLUORO-
    • alpha-Bromo
    • MDL: MFCD00000299
    • Inchi: 1S/C7H2BrF5/c8-1-2-3(9)5(11)7(13)6(12)4(2)10/h1H2
    • InChI Key: XDEPVFFKOVDUNO-UHFFFAOYSA-N
    • SMILES: BrCC1C(=C(C(=C(C=1F)F)F)F)F
    • BRN: 647808

Computed Properties

  • Exact Mass: 259.92600
  • Monoisotopic Mass: 259.926004
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 0
  • Hydrogen Bond Acceptor Count: 5
  • Heavy Atom Count: 13
  • Rotatable Bond Count: 1
  • Complexity: 162
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Surface Charge: 0
  • Tautomer Count: nothing
  • XLogP3: 3
  • Topological Polar Surface Area: 0

Experimental Properties

  • Color/Form: Brownish yellow liquid or solid
  • Density: 1.728?g/mL?at 25?°C(lit.)
  • Melting Point: 19-20?°C (lit.)
  • Boiling Point: 174-175?°C(lit.)
  • Flash Point: Fahrenheit: 181.4 ° f < br / > Celsius: 83 ° C < br / >
  • Refractive Index: n20/D 1.471(lit.)
  • Water Partition Coefficient: Hydrolyzes in water.
  • PSA: 0.00000
  • LogP: 3.27700
  • Sensitiveness: Lachrymatory
  • Solubility: Not determined

2,3,4,5,6-Pentafluorobenzyl bromide Security Information

  • Symbol: GHS05
  • Prompt:dangerous
  • Signal Word:Danger
  • Hazard Statement: H314
  • Warning Statement: P280,P305+P351+P338,P310
  • Hazardous Material transportation number:UN 3265 8/PG 2
  • WGK Germany:3
  • Hazard Category Code: 34
  • Safety Instruction: S26-S36/37/39-S45-S23
  • FLUKA BRAND F CODES:19
  • Hazardous Material Identification: C
  • Packing Group:II
  • Hazard Level:8
  • Safety Term:8
  • Packing Group:II
  • Risk Phrases:R36/37/38
  • HazardClass:8
  • PackingGroup:II
  • Storage Condition:Store below +30°C.

2,3,4,5,6-Pentafluorobenzyl bromide Customs Data

  • HS CODE:2903999090
  • Customs Data:

    China Customs Code:

    2903999090

    Overview:

    2903999090 Other aromatic halogenated derivatives. VAT:17.0% Tax refund rate:9.0% Regulatory conditions:nothing MFN tariff:5.5% general tariff:30.0%

    Declaration elements:

    Product Name, component content, use to

    Summary:

    2903999090 halogenated derivatives of aromatic hydrocarbons VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

2,3,4,5,6-Pentafluorobenzyl bromide Pricemore >>

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2,3,4,5,6-Pentafluorobenzyl bromide Suppliers

Suzhou Senfeida Chemical Co., Ltd
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(CAS:1765-40-8)2,3,4,5,6-Pentafluorobenzyl bromide
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Purity:98%
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(CAS:1765-40-8)2,3,4,5,6-五氟溴芐
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Purity:99%
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Amadis Chemical Company Limited
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(CAS:1765-40-8)2,3,4,5,6-Pentafluorobenzyl bromide
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Quantity:25g
Purity:99%
Pricing Information Last Updated:Friday, 30 August 2024 04:13
Price ($):248.0
Recommended suppliers
Suzhou Senfeida Chemical Co., Ltd
(CAS:1765-40-8)2,3,4,5,6-Pentafluorobenzyl bromide
1635321
Purity:98%
Quantity:Company Customization
Price ($):Inquiry
Email
Tiancheng Chemical (Jiangsu) Co., Ltd
(CAS:1765-40-8)2,3,4,5,6-五氟溴芐
LE1635321;LE14297
Purity:99%/99%
Quantity:25KG,200KG,1000KG/25KG,200KG,1000KG
Price ($):Inquiry/Inquiry
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