Name | 1,1'-methylenebis[4-fluorobenzene] |
Synonyms | 4,4'-Difluorodiphenylamine 1-fluoro-4-(phenylmethyl)benzene 1-Fluoro-4-(4-fluorobenzyl)benzene 1,1'-methylenebis[4-fluorobenzene] Benzene, 1,1'-methylenebis[4-fluoro- (3-Fluoro-4-hydroxyphenyl)acetic acid Methylenebis(1,4-phenylene)bisfluoride Benzeneacetic acid, 3-fluoro-4-hydroxy- |
CAS | 457-68-1 |
EINECS | 207-274-2 |
InChI | InChI=1/C8H7FO3/c9-6-3-5(4-8(11)12)1-2-7(6)10/h1-3,10H,4H2,(H,11,12) |
Molecular Formula | C13H10F2 |
Molar Mass | 204.22 |
Density | 1.145g/mLat 25°C(lit.) |
Melting Point | 29-30°C(lit.) |
Boling Point | 258-260°C742mm Hg(lit.) |
Flash Point | >230°F |
Water Solubility | Insoluble in water. |
Vapor Presure | 0.933Pa at 50℃ |
Appearance | Crystalline |
Specific Gravity | 1.145 |
Color | White or Colorless to Light yellow |
BRN | 1956387 |
Storage Condition | Room Temprature |
Refractive Index | n20/D 1.536(lit.) |
MDL | MFCD00000360 |
Risk Codes | 21/22 - Harmful in contact with skin and if swallowed. |
Safety Description | S28A - S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
HS Code | 29036990 |
Hazard Note | Irritant |
white crystals. The melting point of 29~30.5 degrees C, the boiling point of 90. (133. 3Pa). Insoluble in water. Soluble in ethanol, ether.
The diazotization reaction of 4,4 '-aminodiphenylmethane with fluoroboric acid is carried out to form a fluorobordicarboxylic acid diazonium salt, which is then thermally decomposed.
This product is mainly used for the synthesis of new cerebrovascular drug neocephalazine.
This product is toxic, absorbed through the skin, causing neurological disorders and paralysis. The maximum allowable concentration in the air of the workplace is 1mg/m3.
NIST chemical information | Information provided by: webbook.nist.gov (external link) |