4,4’-difluoro-benzophenon 345-92-6 Large in supply CAS NO.345-92-6

Synonyms: 4,4’-difluoro-benzophenon;Benzophenone, 4,4'-difluoro-;bis(4-fluorophenyl)-methanon;Bis(p-fluorophenyl) ketone;bis(p-fluorophenyl)ketone;Di-p-fluorophenyl ketone;di-p-fluorophenylketone;Methanone, bis(4-fluorophenyl)-
CAS: 345-92-6
MF: C13H8F2O
MW: 218.2
EINECS: 206-466-3
Product Categories: Fluorobenzene Series;FINE Chemical & INTERMEDIATES;Aromatic Benzophenones & Derivatives (substituted);Benzophenones (for High-Performance Polymer Research);Functional Materials;Reagent for High-Performance Polymer Research;C13 to C14;Carbonyl Compounds;Ketones;Pharmaceutical raw materials
Mol File: 345-92-6.mol
Bis(4-fluorophenyl)-methanone Structure
Bis(4-fluorophenyl)-methanone Chemical Properties
Melting point  102-105 °C(lit.)
Boiling point  137°C (3 torr)
Fp  170-172°C/10mm
storage temp.  Store below +30°C.
BRN  516231
CAS DataBase Reference 345-92-6(CAS DataBase Reference)
NIST Chemistry Reference 4,4'-Difluorobenzophenone(345-92-6)
Safety Information
Hazard Codes  Xi,N,Xn
Risk Statements  36/37/38-51/53-22
Safety Statements  26-37/39-36-61
RIDADR  UN 3077 9 / PGIII
WGK Germany  3
RTECS  DJ0685000
Hazard Note  Irritant
HazardClass  IRRITANT

【Synonyms】

4,4'-Difluorobenzophenone
Bis(4-fluorophenyl) ketone
Bis(4-fluorophenyl)methanone
Bis(p-fluorophenyl) ketone
p,p'-Difluorobenzophenone
【CAS】

345-92-6
【Formula】

C13H8F2O
【Molecular Weight】

218.2
【EINECS】

206-466-3
【RTECS】

DJ0685000
【RTECS Class】

Other
【Beilstein/Gmelin】

516231
【Beilstein Reference】

4-07-00-01374
Physical and Chemical Properties Back to Contents
【Appearance】

White to off-white solid.
【Solubility in water】

Insoluble
【Melting Point】

140 - 141
【Boiling Point】

170 - 172 (10 torr)
【Density】

1.39 g/cm3
【Vapor Density】

7.5
First Aid Measures Back to Contents
【Ingestion】

Never give anything by mouth to an unconscious person. Get medical aid. Do NOT induce vomiting. Allow the victim to rinse his mouth and then to drink 2-4 cupfuls of water, and seek medical advice.
【Inhalation】

Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
【Skin】

Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
【Eyes】

In case of contact with substance, immediately flush with running water for at least 20 minutes.
Handling and Storage Back to Contents
【Storage】

Store in a cool, dry place. Keep container closed when not in use.
【Handling】

Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid ingestion and inhalation. Wash clothing before reuse.
Hazards Identification Back to Contents
【Ingestion】

The toxicological properties of this substance have not been fully investigated. Causes gastrointestinal tract irritation.
【Inhalation】

Causes respiratory tract irritation. The toxicological properties of this substance have not been fully investigated.
【Skin】

Causes skin irritation. The toxicological properties of this material have not been fully investigated.
【Eyes】

Causes eye irritation. The toxicological properties of this material have not been fully investigated.
【Hazards】

May explode from heat or contamination. May react explosively with hydrocarbons (fuels). May ignite combustibles.
【EC Risk Phrase】

R 36/37/38
【EC Safety Phrase】

S 26 36
【UN (DOT)】

1479
Exposure Controls/Personal Protection Back to Contents
【Personal Protection】

Wear appropriate protective gloves, clothing and goggles.
【Respirators】

A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. A NIOSH/MSHA approved air purifying dust or mist respirator or European Standard EN 149.
Fire Fighting Measures Back to Contents
【Fire Fighting】

Small Fires: Use water. Do not use dry chemicals or foams. carbon dioxide or Halon may provide limited control. Large Fires: Flood fire area with water from a distance.
【Fire Potential】

These substances will accelerate burning when involved in a fire.
Accidental Release Measures Back to Contents
【Small spills/leaks】

Clean up spills immediately, using the appropriate protective equipment. Sweep up, then place into a suitable container for disposal. Avoid generating dusty conditions. Provide ventilation.
Stability and Reactivity Back to Contents
【Stability】

Stable under normal temperatures and pressures.
【Incompatibilities】

Strong oxidizing agents - strong reducing agents.
【Decomposition】

Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide, hydrogen fluoride.
【Combustion Products】

Fire may produce irritating, corrosive and/or toxic gases.
Transport Information Back to Contents
【UN Number】

1479
【Hazard Class】

5.1
【Packing Group】

I; II; III