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3,5-Difluoropyridine

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CAS:71902-33-5
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CAS:71902-33-5
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CAS:71902-33-5
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3,5-Difluoropyridine manufacturers

  • 3,5-Difluoropyridine
  • 3,5-Difluoropyridine pictures
  • $1.10 / 1g
  • 2021-10-19
  • CAS:71902-33-5
  • Min. Order: 1g
  • Purity: 99.00%
  • Supply Ability: 100 Tons Min
  • 3,5-Difluoropyridine
  • 3,5-Difluoropyridine pictures
  • $1.10 / 1g
  • 2021-05-06
  • CAS:71902-33-5
  • Min. Order: 1g
  • Purity: 99.0% min
  • Supply Ability: 100 tons min
  • 3,5-Difluoropyridine
  • 3,5-Difluoropyridine pictures
  • $3.00 / 1KG
  • 2019-07-06
  • CAS:71902-33-5
  • Min. Order: 1KG
  • Purity: 90%-99.9%
  • Supply Ability: 500kg
3,5-Difluoropyridine Basic information
Synthesis
Product Name:3,5-Difluoropyridine
Synonyms:3,5-DIFLUOROPYRIDINE;3,5-Difluoropyridine 98%;3,5-Difluoropyridine98%;3,5-Difluropyridine;3,5-Difluoropyridine>;Pyridine, 3,5-difluoro-;3,5-Difluoropyridine ISO 9001:2015 REACH
CAS:71902-33-5
MF:C5H3F2N
MW:115.08
EINECS:624-636-9
Product Categories:Fluorine series;Pyridines, Pyrimidines, Purines and Pteredines;Halides;Pyridines;Pyridine;Chemical Synthesis;Halogenated Heterocycles;Heterocyclic Building BlocksHeterocyclic Building Blocks;New Products for Chemical Synthesis;Fluorin-contained pyridine series
Mol File:71902-33-5.mol
3,5-Difluoropyridine Structure
3,5-Difluoropyridine Chemical Properties
Boiling point 92-93°C
density 1.256 g/mL at 25 °C
refractive index 1.4437
Fp 9°C
storage temp. under inert gas (nitrogen or Argon) at 2-8°C
form clear liquid
pka0.39±0.20(Predicted)
color Colorless to Almost colorless
BRN 7914363
InChIKeyWRXAZPPGFLETFR-UHFFFAOYSA-N
CAS DataBase Reference71902-33-5(CAS DataBase Reference)
Safety Information
Hazard Codes Xi,F,N,Xn
Risk Statements 36/37/38-50-20/21/22-11
Safety Statements 26-36/37/39-61-36/37
RIDADR 1993
WGK Germany 3
Hazard Note Highly Flammable/Irritant
HazardClass 3
PackingGroup II
HS Code 29333990
MSDS Information
ProviderLanguage
3,5-Difluoropyridine English
ALFA English
3,5-Difluoropyridine Usage And Synthesis
SynthesisHydrogenolysis of 2,4,6-tribromo-3,5-difluoropyridine occurred rapidly giving quantitative conversion to 3,5-difluoropyridine (5), with an isolated yield by distillation of 63%.
Chemical PropertiesLiquid
PreparationSynthesis of 3,5-Difluoropyridine: A solution of 2,4,6-tribromo-3,5-difluoropyridine (11) (34.0 g, 97 mmol) in DCM (200 cm3) was washed with activated carbon and filtered. A palladium catalyst (3.4 g of a 5% Pd/C commercially available product) and triethylamine (45 cm3, 31.5 g, 312 mmol) were added to the filtrate and the mixture hydrogenated in a Parr apparatus at 4 Bar for 21 h. The mixture was filtered, water (200 cm3) added and extracted into DCM. Distillation of the DCM solution on Fischer-Spaltrohr apparatus gave 3,5-difluoropyridine (7.0 g, 61 mmol, 63%), b.p. 92.5 ·c (Found: C, 52.2; H, 3.0; N, 12.2. C5H3F2N2 requires C, 52.2; H, 3.0; N, 12.2%);
IR spectrum no. 1; mass spectrum no. 1; nrnr spectrum no. 8.
Tag:3,5-Difluoropyridine(71902-33-5) Related Product Information
DIPIPERIDINOMETHANE 2,6-Lutidine 2,5-PYRIDINEDICARBOXYLIC ACID Diethyl 1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate 2,3,5,6-Tetrafluoropyridine 2 3 5 6-TETRAFLUORO-4-METHYLPYRIDINE 9& 2,3-DIFLUOROPYRIDINE 2,5-DIFLUOROPYRIDINE 2,3,5,6-TETRAFLUORO-4-PYRIDINE-CARBONITRILE 4-(DIMETHYLAMINO)-2,3,5,6-TETRAFLUOROPYRIDINE 4-AMINO-2,3,5,6-TETRAFLUOROPYRIDINE Pentafluoropyridine 2,6-DIFLUOROPYRIDINE 3,4-DIBROMO-2-FLUOROPYRIDINE 5,6-Difluoropyridine-2-carboxylic acid 2,6-DIBROMO-3,5-DIFLUOROPYRIDINE-4-CARBOXYLIC ACID 2,6-DIFLUOROPYRIDINE-3-BORONIC ACID HYDRATE 2,4-DIFLUORO-PYRIDINE