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3',4'-Difluoroacetophenone

CAS No.
369-33-5
Chemical Name:
3',4'-Difluoroacetophenone
Synonyms
1-(3,4-Difluorophenyl)ethan-1-one;4´3',4'-Difluoro;3',4'-Difluoroacetop;OTAVA-BB BB7020410077;3,4-DIFLUOROACETOPHENONE;3',4'-difluoroacetophenone;3,4-Difluoroacetophenone,98%;3',4'-Difluoroacetophenone99%;3',4'-Difluoroacetophenone>
CBNumber:
CB3130786
Molecular Formula:
C8H6F2O
Molecular Weight:
156.13
MDL Number:
MFCD00009891
MOL File:
369-33-5.mol
MSDS File:
SDS
TDS File:
TDS
Last updated:2026-05-28 00:57:21

3',4'-Difluoroacetophenone Properties

Melting point 19-20 °C(lit.)
Boiling point 94-95 °C13 mm Hg(lit.)
Density 1.246 g/mL at 25 °C(lit.)
refractive index n20/D 1.4916(lit.)
Flash point 167 °F
storage temp. Sealed in dry,Room Temperature
form powder to lump to clear liquid
color White or Colorless to Light yellow
Specific Gravity 1.246
Water Solubility INSOLUBLE
BRN 2206856
InChI 1S/C8H6F2O/c1-5(11)6-2-3-7(9)8(10)4-6/h2-4H,1H3
InChIKey VWJSSJFLXRMYNV-UHFFFAOYSA-N
SMILES CC(=O)c1ccc(F)c(F)c1
CAS DataBase Reference 369-33-5(CAS DataBase Reference)
NIST Chemistry Reference 3',4'-Difluoroacetophenone(369-33-5)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
target organs Respiratory system
PPE Eyeshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36-37/39
WGK Germany  3
HazardClass  IRRITANT
HS Code  29147000
Storage Class 10 - Combustible liquids
Hazard Classifications Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
NFPA 704
2
2 0

3',4'-Difluoroacetophenone price More Price(70)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 264288 3′,4′-Difluoroacetophenone 97% 369-33-5 5g $61.6 2026-04-30 Buy
TCI Chemical D1906 3',4'-Difluoroacetophenone >97.0%(GC) 369-33-5 5g $22 2026-04-30 Buy
TCI Chemical D1906 3',4'-Difluoroacetophenone >97.0%(GC) 369-33-5 25g $62 2026-04-30 Buy
Usbiological 273548 3',4'-Difluoroacetophenone Asreported 369-33-5 50g $360 2026-06-03 Buy
Usbiological 273548 3',4'-Difluoroacetophenone Asreported 369-33-5 100g $499 2026-06-03 Buy
Product number Packaging Price Buy
264288 5g $61.6 Buy
D1906 5g $22 Buy
D1906 25g $62 Buy
273548 50g $360 Buy
273548 100g $499 Buy

3',4'-Difluoroacetophenone Chemical Properties, Uses, Production

Chemical Properties

clear yellowish liquid after melting

Uses

3′,4′-Difluoroacetophenone may be used in chemical synthesis.

Definition

ChEBI: 1-(3,4-Difluorophenyl)ethan-1-one is an aromatic ketone.

Synthesis

1,2-Difluorobenzene

367-11-3

Acetyl chloride

75-36-5

3',4'-Difluoroacetophenone

369-33-5

Anhydrous aluminum trichloride (117 g) was slowly added to a mixed solution of 1,2-difluorobenzene (50 g) with acetyl chloride (86 g) at room temperature. The formed slurry was heated to 30°C with continuous stirring. Upon completion of the reaction, the red reaction mixture was cooled to 20 °C and subsequently slowly poured into 800 g of ice-water mixture with continued stirring for 30 min. The organic phase was separated and the aqueous phase was extracted with dichloromethane (3 x 500 ml). All organic phases were combined and washed sequentially with water (2 x 500 ml), saturated sodium bicarbonate solution (2 x 500 ml) and 15% brine (2 x 500 ml), followed by drying with anhydrous sodium sulfate. The organic phases were concentrated to remove the solvent and finally distilled under reduced pressure to collect the fractions at 95 °C/13 mmHg to give 3',4'-difluoroacetophenone (51 g).

References

[1] Journal of Fluorine Chemistry, 1980, vol. 15, p. 245 - 252
[2] Journal of the Indian Chemical Society, 1982, vol. 59, # 2, p. 293 - 294
[3] Heterocycles, 1981, vol. 16, # 9, p. 1545 - 1553
[4] Journal of Medicinal Chemistry, 1979, vol. 22, # 11, p. 1385 - 1389
[5] Heterocycles, 1981, vol. 16, # 1, p. 71 - 76

Global Suppliers ( 320)
Supplier Tel Email Country ProdList Advantage
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View Latest Price from 3',4'-Difluoroacetophenone manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
3′, 4′-Difluoroacetophenone pictures 2026-05-28 3′, 4′-Difluoroacetophenone
369-33-5
$9.50 1KG 99% 100ton Hebei Chuanghai Biotechnology Co,.LTD
3',4'-Difluoroacetophenone pictures 2022-02-19 3',4'-Difluoroacetophenone
369-33-5
1KG 97.6% 100 tons Honest Joy Holdings Limited
3',4'-Difluoroacetophenone pictures 2019-12-20 3',4'-Difluoroacetophenone
369-33-5
$1.00 1KG 99% Career Henan Chemical Co
1-(3,4-DIFLUORO-PHENYL)-ETHANONE 3,4-DIFLUOROACETOPHENONE OTAVA-BB BB7020410077 Ethanone, 1-(3,4-difluorophenyl)- 3,4-Difluoroacetophenone,98% 3',4'-Difluoro 3',4'-Difluoroacetophenone 99% 3',4'-Difluoroacetophenone99% 3,4-Difluorophenyl(methyl) ketone 3',4'-Difluoroacetop 4´ 3,4-Difluoroacetophenone≥ 98% (GC) 3',4'-Difluoroacetophenone> 3',4'-difluoroacetophenone 3′,4′-Difluoroacetophenone, CAS 369-33-5 1-(3,4-Difluorophenyl)ethan-1-one 369-33-5 69-33-5 KETONE Organic Building Blocks Ketones C7 to C8 Carbonyl Compounds Building Blocks Acetophenone Series Aromatic Acetophenones & Derivatives (substituted) ketone Miscellaneous Adehydes, Acetals & Ketones Fluorine Compounds C7 to C8 Carbonyl Compounds Ketones bc0001