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Name	2,5-Dibromoterephthalic acid	EINECS	237-300-8
CAS No.	13731-82-3	Density	2.205g/cm3
PSA	74.60000	LogP	2.60800
Solubility	N/A	Melting Point	315-318 ºC
Formula	C8H4 Br2 O4	Boiling Point	445ºC at 760 mmHg
Molecular Weight	323.925	Flash Point	222.9°C
Transport Information	N/A	Appearance	N/A
Safety	S26;S37/39	Risk Codes	R36/37/38
Molecular Structure		Hazard Symbols
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	Article Data	33

2,5-Dibromoterephthalic acid Synthetic route

: 1074-24-4
2,5-dibromo-p-xylene

: 13731-82-3
2,5-dibromoterephtalic acid

Conditions

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%

: 20871-01-6
2,5-dibromo-4-methylbenzoic acid

: 13731-82-3
2,5-dibromoterephtalic acid

Conditions

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

: 18870-11-6
2,5-dibromobenzene-1,4-dinitrile

: 13731-82-3
2,5-dibromoterephtalic acid

Conditions

Conditions	Yield
With sodium hydroxide

2.5-dibromo-1.4-bis-tribromomethyl-benzene: 2.5-dibromo-1.4-bis-tribromomethyl-benzene

: 13731-82-3
2,5-dibromoterephtalic acid

Conditions

Conditions	Yield
With sulfuric acid at 120 - 130℃;

2.5-dibromo-cymene: 2.5-dibromo-cymene

: 13731-82-3
2,5-dibromoterephtalic acid

Conditions

Conditions	Yield
With nitric acid at 180℃; im geschlossenen Rohr;

: 67-56-1
methanol

: 13731-82-3
2,5-dibromoterephtalic acid

: 18014-00-1
dimethyl 2,5-dibromoterephthalate

Conditions

Conditions	Yield
With thionyl chloride for 5h; Reflux;	100%
With sulfuric acid Heating;	95%
With sulfuric acid Heating; Reflux;	95%

: 13731-82-3
2,5-dibromoterephtalic acid

: 13815-90-2
3,6-dibromo-2,5-phenylenedi(carboxylic acid chloride)

Conditions

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%

: 743460-48-2
biphenyl-2-ylcarbamic acid 1-[2-(methylamino)ethyl]piperidin-4-yl ester

: 13731-82-3
2,5-dibromoterephtalic acid

: 864751-39-3
N-{2-[4-(Biphenyl-2-ylcarbamoyloxy)piperidin-1-yl]ethyl}-2,5-dibromo-N-methylterephthalamic Acid

Conditions

Conditions	Yield
With N-ethyl-N,N-diisopropylamine; HATU In DMF (N,N-dimethyl-formamide) at 20℃; for 3h;	100%

: 64-17-5
ethanol

: 13731-82-3
2,5-dibromoterephtalic acid

: 18013-97-3
2,5-dibromo-terephthalic acid diethyl ester

Conditions

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%

: 13731-82-3
2,5-dibromoterephtalic acid

: 1401211-90-2
N-(2-hexyldecyl)thiophene-3-amine

: 2,5-dibromo-N1,N4-bis(2-hexyldecyl)-N1,N4-di(thiophen-3-yl)terephthalamide

Conditions

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%

2,5-Dibromoterephthalic acid Chemical Properties

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

2,5-Dibromoterephthalic acid Safety Profile

Hazard Codes: Corrosive C, Irritant 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.

2,5-Dibromoterephthalic acid Specification

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.

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