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| CAS No.: | 7697-28-1 |
|---|---|
| Name: | 4-Bromo-3-methylbenzoic acid |
| Article Data: | 19 |
| Molecular Structure: | |
|
|
|
| Formula: | C8H7BrO2 |
| Molecular Weight: | 215.046 |
| Synonyms: | m-Toluicacid, 4-bromo- (6CI,8CI);Benzoicacid, 4-bromo-3-methyl-;4-Bromo-3-methylbenzoicacid;3-Methyl-4-bromobenzoic acid; |
| EINECS: | 231-713-7 |
| Density: | 1.599 g/cm3 |
| Melting Point: | 212-216 °C(lit.) |
| Boiling Point: | 311.4 °C at 760 mmHg |
| Flash Point: | 142.1 °C |
| Appearance: | White or reddish crystal powder |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | 36/37/38 |
| Safety: | 26-36 |
| PSA: | 37.30000 |
| LogP: | 2.45570 |
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- 894852-01-87-BROMO-2,2-DIMETHYL-2H-PYRIDO[3,2-B][1,4]OXAZIN-3(4H)-ONE
- 90221-55-92-bromo-5-methylbenzaldehyde
- 885590-99-82,3-DIFLUORO-4-IODOBENZALDEHYDE
- 97730-31-9(S)-4'-(2-Methylbutyl)Biphenyl-4-Carbonitrile
| Conditions | Yield |
|---|---|
| Stage #1: 4-amino 3-methylbenzoic acid With hydrogen bromide In water at 25℃; for 1h; Stage #2: With sodium nitrate In water at -2 - -1℃; for 1.75h; Stage #3: With hydrogen bromide; copper(I) bromide In water at -2 - 70℃; for 2h; | 90% |
| Diazotization.Kochen der Diazoverbindung mit Bromwasserstoffsaeure; | |
| With hydrogen bromide; sodium nitrite; copper(I) chloride In water |
- 84797-77-3
4,4'-dibromo-5,3'-dimethyl-2-nitrodiphenylmethane
A
- 7697-28-1
4-bromo-3-methylbenzoic acid
B
- 93099-47-9
6-bromo-5-methyl-3-(4'-bromo-3'-methylphenyl)-2,1-isoxazole
C
- 84658-94-6
3,6-dibromo-2,7-dimethylacridone
| Conditions | Yield |
|---|---|
| With sulfuric acid In ethanol for 5h; Irradiation; | A 63% B 20% C 6% |
| With sulfuric acid In ethanol for 5h; Product distribution; Mechanism; Irradiation; | A 51% B 20% C 6% |
- 146308-26-1
4-bromo-3-methyl-N-(2-methyl-4-cyanophenyl)benzamide
A
- 7697-28-1
4-bromo-3-methylbenzoic acid
B
- 78881-21-7
4-amino-3-methylbenzonitrile
| Conditions | Yield |
|---|---|
| With potassium hydroxide In ethanol a) 70 deg C, 4.5 h, b) 80 deg C, 3 h; Yields of byproduct given; | A 63% B n/a |
| With potassium hydroxide In ethanol a) 70 deg C, 4.5 h, b) 80 deg C, 3 h; Yield given; | A 63% B n/a |
| Conditions | Yield |
|---|---|
| With nitric acid | 60% |
| With nitric acid for 24h; Heating / reflux; | 60% |
| With nitric acid at 150℃; | |
| With nitric acid |
- 109-72-8, 29786-93-4
n-butyllithium
- 615-59-8
1,4-dibromo-2-methylbenzene
- 7697-28-1
4-bromo-3-methylbenzoic acid
| Conditions | Yield |
|---|---|
| With diethyl ether Aufgiessen des Reaktionsgemisches auf festes Kohlendioxid; |
- 615-59-8
1,4-dibromo-2-methylbenzene
A
- 5156-01-4
2-methylterephthalic acid
B
- 7697-28-1
4-bromo-3-methylbenzoic acid
| Conditions | Yield |
|---|---|
| With n-butyllithium; Petroleum ether anschliessendes Behandeln mit festem Kohlendioxid; |
- 92243-75-9
1-bromo-4-isopropyl-2-methyl-benzene
- 7697-28-1
4-bromo-3-methylbenzoic acid
| Conditions | Yield |
|---|---|
| With nitric acid |
- 37074-40-1
1-(4-bromo-3-methylphenyl)ethan-1-one
A
- 6939-93-1
4-bromo-isophthalic acid
B
- 7697-28-1
4-bromo-3-methylbenzoic acid
| Conditions | Yield |
|---|---|
| With potassium permanganate | |
| With alkaline potassium permanganate |
| Conditions | Yield |
|---|---|
| With bromine |
| Conditions | Yield |
|---|---|
| (i) NaNO2, aq. HCl, (ii) /BRN= 3587244/, (iii) NaOH, EtOH; Multistep reaction; |
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Chemistry
Molecular Structure:
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Molecular Formula: C8H7BrO2
Molecular Weight: 215.044
IUPAC Name: 4-Bromo-3-methylbenzoic acid
Synonyms of 3-Methyl-4-bromobenzoic acid (CAS NO.7697-28-1): EINECS 231-713-7 ; 4-Bromo-3-methylbenzoic acid
CAS NO: 7697-28-1
Product Categories: blocks ; Bromides ; Carboxes ; Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts ; Benzoic acid ; Organic acids ; Acids & Esters ; Bromine Compounds ; C8 ; Carbonyl Compounds ; Carboxylic Acids
Melting Point: 212-216 °C
Index of Refraction: 1.595
Molar Refractivity: 45.69 cm3
Molar Volume: 134.4 cm3
Surface Tension: 50 dyne/cm
Density: 1.599 g/cm3
Flash Point: 142.1 °C
Enthalpy of Vaporization: 58.31 kJ/mol
Boiling Point: 311.4 °C at 760 mmHg
Vapour Pressure: 0.000243 mmHg at 25°C
Uses
3-Methyl-4-bromobenzoic acid (CAS NO.7697-28-1) is used as a pharmaceutical intermediate.
Safety Profile
Safety Information of 3-Methyl-4-bromobenzoic acid (CAS NO.7697-28-1):
Hazard Codes:Xi 
Risk Statements:36/37/38
36/37/38:Irritating to eyes, respiratory system and skin
Safety Statements:26-36
26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36:Wear suitable protective clothing
WGK Germany:3
Hazard Note:Irritant