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42085

Sigma-Aldrich

1-Fluoro-2,4-dinitrobenzene

purum p.a., ≥98.0% (GC)

Synonym(s):

2,4-Dinitro-1-fluorobenzene, DNFB, DNPF, FDNB, Sanger reagent

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$149.00
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$425.00

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Estimated to ship onJuly 02, 2025Details


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50 G
$149.00
250 G
$425.00

About This Item

Linear Formula:
(O2N)2C6H3F
CAS Number:
Molecular Weight:
186.10
Beilstein/REAXYS Number:
398632
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

$149.00


Estimated to ship onJuly 02, 2025Details


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grade

purum p.a.

Quality Level

assay

≥98.0% (GC)

form

liquid

refractive index

n20/D 1.569 (lit.)

bp

178 °C/25 mmHg (lit.)

mp

25-27 °C (lit.)

density

1.482 g/mL at 25 °C (lit.)

cation traces

Ca: ≤50 mg/kg
Cd: ≤50 mg/kg
Co: ≤50 mg/kg
Cu: ≤50 mg/kg
Fe: ≤50 mg/kg
K: ≤100 mg/kg
Na: ≤100 mg/kg
Ni: ≤50 mg/kg
Pb: ≤50 mg/kg
Zn: ≤50 mg/kg

functional group

fluoro
nitro

storage temp.

2-8°C

SMILES string

[O-][N+](=O)c1ccc(F)c(c1)[N+]([O-])=O

InChI

1S/C6H3FN2O4/c7-5-2-1-4(8(10)11)3-6(5)9(12)13/h1-3H

InChI key

LOTKRQAVGJMPNV-UHFFFAOYSA-N

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1 of 4

This Item
73177D102504D1529
assay

≥98.0% (GC)

assay

≥99.0% (GC)

assay

97%

assay

≥99%

Quality Level

100

Quality Level

100

Quality Level

100

Quality Level

200

mp

25-27 °C (lit.)

mp

25-27 °C (lit.)

mp

72-74 °C (lit.)

mp

25-27 °C (lit.)

density

1.482 g/mL at 25 °C (lit.)

density

1.482 g/mL at 25 °C (lit.)

density

-

density

1.482 g/mL at 25 °C (lit.)

refractive index

n20/D 1.569 (lit.)

refractive index

n20/D 1.569 (lit.)

refractive index

-

refractive index

n20/D 1.569 (lit.)

bp

178 °C/25 mmHg (lit.)

bp

178 °C/25 mmHg (lit.)

bp

-

bp

178 °C/25 mmHg (lit.)

General description

1-Fluoro-2,4-dinitrobenzene(FDNB, Sanger′s reagent) is used to identify the amino acid sequence. Thischemical is used to label the free amino groups in proteins and peptides. Itcan also be used to protect the amine group, and for phenol deoxygenation. Additionally,it is a very helpful reagent for nucleophilic substitution reactions tointroduce a chromophore group to amines, phenols, and thiols.

Application

1-Fluoro-2,4-dinitrobenzene is used as a derivatization agent:
  • For aminoglycoside compounds such as amikacine, tobramycine, gentamycine, sisomycine, neamine, neomycine-B and neomycine-C.
1-Fluoro-2,4-dinitrobenzene can also be used:
  • To examine the kinetic analysis and analytical uses of reaction with thiols in the presence of several surfactants.

pictograms

Health hazardExclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

327.2 °F

flash_point_c

164 °C

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves


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Questions

1–2 of 2 Questions  
  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer
    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer
    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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