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CAS No.: | 623-24-5 |
---|---|
Name: | alpha,alpha'-Dibromo-p-xylene |
Article Data: | 75 |
Molecular Structure: | |
Formula: | C8H8Br2 |
Molecular Weight: | 263.96 |
Synonyms: | p-Xylene, a,a'-dibromo- (6CI,7CI,8CI);1,4-Bis(bromomethyl)benzene;1,4-Di(bromomethyl)benzene;1,4-Xylylene dibromide;4-Bromomethylbenzylbromide;NSC 6226;p-Bis(bromomethyl)benzene;p-Di(bromomethyl)benzene;p-Xylylene bromide;p-Xylylene dibromide;a,a'-Dibromo-p-xylene; |
EINECS: | 210-781-1 |
Density: | 1.778 g/cm3 |
Melting Point: | 143-145 °C(lit.) |
Boiling Point: | 245 °C at 760 mmHg |
Flash Point: | 139.5 °C |
Solubility: | soluble, hydrolyses |
Appearance: | white to light yellow crystal powder |
Hazard Symbols: | C |
Risk Codes: | 34-22 |
Safety: | 26-36/37/39-45 |
Transport Information: | UN 3448 6.1/PG 2 |
PSA: | 0.00000 |
LogP: | 3.47640 |
Conditions | Yield |
---|---|
With Silphos; bromine In acetonitrile for 0.166667h; Heating; | 97% |
With hydrogen bromide bei der Destillation; |
Conditions | Yield |
---|---|
With N-Bromosuccinimide; dibenzoyl peroxide In tetrachloromethane for 4h; Bromination; Heating; | 90% |
With hydrogen bromide; sodium bromide In chloroform; water at 0 - 2℃; Electrolysis; | 90% |
With hydrogen bromide; sodium bromide In chloroform; water at 15℃; Electrolysis; | 90% |
Conditions | Yield |
---|---|
With isopinocampheyl-boron dibromide dimethylsulfide complex In hexane at 20℃; for 5h; Reduction; bromination; | 81% |
Conditions | Yield |
---|---|
With sodium bromate; sodium hydrogensulfite In water; ethyl acetate at 20℃; for 4h; Bromination; | A 70% B 6% |
With N-Bromosuccinimide In water at 25℃; for 22h; Wohl-Ziegler bromination; | A 3% B 66% |
With hydrogen bromide; dihydrogen peroxide In water at 20℃; Irradiation; | A 10% B 62% |
Conditions | Yield |
---|---|
With [2,5-Me2C6H3SO2N(Br)CH2]2; dibenzoyl peroxide In tetrachloromethane at 77℃; for 1.5h; Bromination; | 62% |
Conditions | Yield |
---|---|
With phosphoric acid; hydrogen bromide; acetic acid at 95 - 110℃; Einleiten von HBr; |
Conditions | Yield |
---|---|
With tetrachloromethane; hydrogen bromide; zinc dibromide | |
With hydrogen bromide; acetaldehyde |
bis(bromomethyl) ether
(E)-3-Ureido-but-2-enoic acid ethyl ester
benzene
A
1,4-bis(bromomethyl)benzene
B
benzyl bromide
Conditions | Yield |
---|---|
With zinc(II) chloride |
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IUPAC Name: 1,4-bis(Bromomethyl)benzene
Synonyms of alpha,alpha'-Dibromo-p-xylene (CAS NO.623-24-5): 1,4-Bis(Bromomethyl)benzene ; p-Xylylene dibromide
CAS NO: 623-24-5
Molecular Formula: C8H8Br2
Molecular Weight: 263.96
Molecular Structure:
EINECS: 210-781-1
H bond acceptors: 0
H bond donors: 0
Freely Rotating Bonds: 2
Polar Surface Area: Å2
Index of Refraction: 1.611
Molar Refractivity: 51.54 cm3
Molar Volume: 148.4 cm3
Surface Tension: 45.3 dyne/cm
Density: 1.778 g/cm3
Flash Point: 139.5 °C
Enthalpy of Vaporization: 46.25 kJ/mol
Boiling Point: 245 °C at 760 mmHg
Vapour Pressure: 0.046 mmHg at 25°C
Melting Point: 143-145 °C(lit.)
Water Solubility: soluble, hydrolyses
Sensitive: Lachrymatory
Appearance: white to light yellow crystal powder
Product Categories of alpha,alpha'-Dibromo-p-xylene (CAS NO.623-24-5): Aromatic Halides (substituted)
Safety Information about alpha,alpha'-Dibromo-p-xylene (CAS NO.623-24-5):
Hazard Codes: C
Risk Statements: 34-22
R34: Causes burns.
R22: Harmful if swallowed.
Safety Statements: 26-36/37/39-45
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection.
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 3448 6.1/PG 2
WGK Germany: 3
F: 8-19-21
Hazard Note: Corrosive/Lachrymatory
HazardClass: 8
PackingGroup: III