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250759

Sigma-Aldrich

2,4-Difluorophenyl isocyanate

99%

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About This Item

Linear Formula:
F2C6H3NCO
CAS Number:
59025-55-7
Molecular Weight:
155.10
Beilstein:
2831577
MDL number:
MFCD00001997
UNSPSC Code:
12352100
PubChem Substance ID:
24855072
NACRES:
NA.22

Quality Level

100

Assay

99%

form

liquid

refractive index

n20/D 1.490 (lit.)

bp

42 °C/6 mmHg (lit.)

density

1.309 g/mL at 25 °C (lit.)

SMILES string

Fc1ccc(N=C=O)c(F)c1

InChI

1S/C7H3F2NO/c8-5-1-2-7(10-4-11)6(9)3-5/h1-3H

InChI key

HNENEALJPWJWJY-UHFFFAOYSA-N

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Application

2,4-Difluorophenyl isocyanate has been used:
  • in the synthesis of N,N-disubstituted S,N′-diarylisothioureas
  • as blocking reagent, to modify the hydroxyl, amine and epoxide functional groups of cured MY720/DDS epoxy thin films

Signal Word

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 3 - Resp. Sens. 1 - Skin Irrit. 2 - Skin Sens. 1 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

131.0 °F - closed cup

Flash Point(C)

55 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Chemical modification of cured MY720/DDS epoxy resins using fluorinated aromatic compounds to reduce moisture sensitivity.
Hu H-P, et al.
Journal of Polymer Science Part A: Polymer Chemistry, 25(5), 1235-1248 (1987)
Alan R Katritzky et al.
Journal of combinatorial chemistry, 4(4), 285-289 (2002-07-09)
Reactions of resin-bound 1,1-disubstituted-2-arylisothioureas 4aa',ab'-ec' with aryl isocyanates, diversely substituted at the para and/or meta positions, and with o-fluoro- and 2,4-difluorophenyl isocyanate followed by appropriate cleavage led to the formation of N,N-disubstituted S,N'-diarylisothioureas 9[1-70] in good yields and high purities.
Mengling Tang et al.
Autophagy, 17(8), 1918-1933 (2020-08-12)
Burkholderia pseudomallei: which causes melioidosis with high mortality in humans, has become a global public health concern. Recently, infection-driven lipid droplet accumulation has been related to the progression of host-pathogen interactions, and its contribution to the pathogenesis of infectious disease

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