| Identification | More | [Name]
1,2-Diphenylethylenediamine | [CAS]
16635-95-3 | [Synonyms]
1,2-DIPHENYLETHYLENE
BIBENZAL
STILBENE, TRANS-
TRANS-1,1'-(1,2-ETHENEDIYL)BIS(BENZENE)
TRANS-1,1'-(1,2-ETHENEDYL)BIS(BENZENE)
TRANS-1,2-DIPHENYLETHYLENE
TRANS-A B-DIPHENYLETHYLENE
TRANS-BIBENZYLIDENE
TRANS-STILBENE
TRANS-TOLUYLENE
Racemic 1,2-Diphenylethylenediamine
STILBENE, trans-(RG)
Bibenzil
1,2-Diphenylethylenediamine | [EINECS(EC#)]
203-098-5 | [Molecular Formula]
C14H16N2 | [MDL Number]
MFCD00064300 | [Molecular Weight]
212.29 | [MOL File]
16635-95-3.mol |
| Chemical Properties | Back Directory | [Melting point ]
123-125 °C(lit.) | [Boiling point ]
305-307 °C744 mm Hg(lit.) | [density ]
0.97 g/mL at 25 °C(lit.)
| [storage temp. ]
2-8°C
| [solubility ]
soluble in Methanol | [form ]
powder to crystal | [pka]
9.78±0.10(Predicted) | [color ]
White to Yellow to Orange | [CAS DataBase Reference]
16635-95-3(CAS DataBase Reference) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,N | [Risk Statements ]
R22:Harmful if swallowed.
R36:Irritating to the eyes.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37:Wear suitable protective clothing and gloves .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
2735 | [WGK Germany ]
2
| [RTECS ]
WJ4926500
| [HS Code ]
2921.59.8090 |
| Hazard Information | Back Directory | [Uses]
1,2-Diphenylethylenediamine (DPE) has been found to react in a neutral medium with catecholamines and other catechol compounds in the presence of hexacyanoferrate(III) to give a compound that fluoresces intensely. The reaction is accelerated by amino acids such as glycine. Nohta et al. described a sensitive spectrofluorimetric method for determining catecholamines with 1,2diphenylethylenediamine. The method is based on the reaction of catechol compounds in a neutral medium with 1,2-diphenylethylenediamine in the presence of hexacyanoferrate(II1) and glycine at ambient temperature. The fluorescence shows excitation and emission maxima around 345 and 480 nm, respectively. The method is simple, selective for catechol compounds, and very sensitive. Catecholamines can be determined at concentrations as low as 15-20 pmol ml-1[1]. | [Synthesis]
To a 500-ml four-necked flask fitted with a condenser was added 1,2-diphenylethanedione dioxime (48 g,
0.20 mol) and 260 ml of methanol, stirring to dissolve it all, then add 2 g of activated carbon (120 mesh), 0.5 g of
Raney nickel, raise the temperatu | [References]
[1] H. Nohta, Y. Ohkura, A. Mitsui. “Spectrofluorimetric determination of catecholamines with 1,2-diphenylethylenediamine.” Analytica Chimica Acta 165 1 (1984): 171–176. |
|
|