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CAS No.: | 13731-82-3 |
---|---|
Name: | 2,5-Dibromoterephthalic acid |
Article Data: | 33 |
Molecular Structure: | |
Formula: | C8H4 Br2 O4 |
Molecular Weight: | 323.925 |
Synonyms: | Terephthalicacid, 2,5-dibromo- (6CI,7CI,8CI); 1,4-Dibromo-2,5-benzenedicarboxylic acid;2,5-Dibromo-4-carboxybenzoic acid; 2,5-Dibromoterephthalic acid; NSC 115430 |
EINECS: | 237-300-8 |
Density: | 2.205g/cm3 |
Melting Point: | 315-318 ºC |
Boiling Point: | 445ºC at 760 mmHg |
Flash Point: | 222.9°C |
Hazard Symbols: | |
Risk Codes: | R36/37/38 |
Safety: | S26;S37/39 |
PSA: | 74.60000 |
LogP: | 2.60800 |
2,5-dibromo-p-xylene
2,5-dibromoterephtalic acid
Conditions | Yield |
---|---|
With pyridine; potassium permanganate In water | 96% |
With pyridine; potassium permanganate In water for 24h; Reflux; | 91% |
With chromium(VI) oxide; sulfuric acid In acetic acid at 20℃; for 24h; | 90% |
2,5-dibromo-4-methylbenzoic acid
2,5-dibromoterephtalic acid
Conditions | Yield |
---|---|
With potassium permanganate; sodium hydrogencarbonate for 144h; Heating; | 94% |
With potassium permanganate In water for 144h; Reflux; | 86% |
With potassium permanganate; water for 144h; Reflux; | 86% |
With alkaline permanganate | |
With potassium permanganate; potassium carbonate |
2,5-dibromobenzene-1,4-dinitrile
2,5-dibromoterephtalic acid
Conditions | Yield |
---|---|
With sodium hydroxide |
2,5-dibromoterephtalic acid
Conditions | Yield |
---|---|
With sulfuric acid at 120 - 130℃; |
2,5-dibromoterephtalic acid
Conditions | Yield |
---|---|
With nitric acid at 180℃; im geschlossenen Rohr; |
Conditions | Yield |
---|---|
With thionyl chloride for 5h; Reflux; | 100% |
With sulfuric acid Heating; | 95% |
With sulfuric acid Heating; Reflux; | 95% |
2,5-dibromoterephtalic acid
3,6-dibromo-2,5-phenylenedi(carboxylic acid chloride)
Conditions | Yield |
---|---|
With oxalyl dichloride; N,N-dimethyl-formamide In benzene at 80℃; | 100% |
With oxalyl dichloride | 100% |
With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane for 3h; Inert atmosphere; Reflux; | 100% |
biphenyl-2-ylcarbamic acid 1-[2-(methylamino)ethyl]piperidin-4-yl ester
2,5-dibromoterephtalic acid
N-{2-[4-(Biphenyl-2-ylcarbamoyloxy)piperidin-1-yl]ethyl}-2,5-dibromo-N-methylterephthalamic Acid
Conditions | Yield |
---|---|
With N-ethyl-N,N-diisopropylamine; HATU In DMF (N,N-dimethyl-formamide) at 20℃; for 3h; | 100% |
ethanol
2,5-dibromoterephtalic acid
2,5-dibromo-terephthalic acid diethyl ester
Conditions | Yield |
---|---|
Stage #1: 2,5-dibromoterephtalic acid With thionyl chloride for 4h; Reflux; Stage #2: ethanol In tetrahydrofuran for 10h; | 99% |
sulfuric acid Reflux; | 96% |
With sulfuric acid for 48h; Reflux; | 96% |
2,5-dibromoterephtalic acid
N-(2-hexyldecyl)thiophene-3-amine
Conditions | Yield |
---|---|
Stage #1: 2,5-dibromoterephtalic acid With oxalyl dichloride; N,N-dimethyl-formamide In dichloromethane at 20℃; for 20h; Schlenk technique; Inert atmosphere; Stage #2: N-(2-hexyldecyl)thiophene-3-amine With triethylamine In dichloromethane at 0 - 20℃; for 20h; | 99% |
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IUPAC Name: 2,5-dibromoterephthalic acid
Empirical Formula: C8H4Br2O4
Molecular Weight: 323.923g/mol
EINECS: 237-300-8
Structure of 1,4-Benzenedicarboxylicacid, 2,5-dibromo- (CAS NO.13731-82-3):
Index of Refraction: 1.679
Molar Refractivity: 55.49 cm3
Molar Volume: 146.8 cm3
Polarizability: 21.99×10-24cm3
Surface Tension: 75.2 dyne/cm
Density: 2.205 g/cm3
Flash Point: 222.9 °C
Enthalpy of Vaporization: 74.08 kJ/mol
Melting Point: 320-325°C
Boiling Point: 445 °C at 760 mmHg
Vapour Pressure: 1.06E-08 mmHg at 25°C
Physical Appearance: white crystalline powder
Product Categories: Phthalic Acids, Esters and Derivatives;Carboxylic Acids;Phenyls & Phenyl-Het;Organic acids;Carboxylic Acids;Phenyls & Phenyl-Het;Derivatives of phthalic acid
Canonical SMILES: C1=C(C(=CC(=C1Br)C(=O)O)Br)C(=O)O
InChI: InChI=1S/C8H4Br2O4/c9-5-1-3(7(11)12)6(10)2-4(5)8(13)14/h1-2H,(H,11,12)(H,13,14)
InChIKey: VUTICWRXMKBOSF-UHFFFAOYSA-N
Hazard Codes: C,Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-37/39-36
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S37/39:Wear suitable gloves and eye/face protection.
S36:Wear suitable protective clothing.
1,4-Benzenedicarboxylicacid, 2,5-dibromo- , its cas register number is 13731-82-3. It also can be called 2,5-Dibromoterephthalic acid ; NSC 115430 . 1,4-Benzenedicarboxylicacid, 2,5-dibromo- (CAS NO.13731-82-3) is irritating to eyes, respiratory system and skin.