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20776-50-5

20776-50-5 Structure

20776-50-5 Structure
IdentificationMore
[Name]

2-Amino-4-bromobenzoic acid
[CAS]

20776-50-5
[Synonyms]

2-AMINO-4-BROMOBENZOIC ACID
4-BROMOANTHRANILIC ACID
BENZOIC ACID, 2-AMINO-4-BROMO-
BUTTPARK 49\07-49
4-bromo-2-aminoebnzoic acid
[EINECS(EC#)]

244-025-7
[Molecular Formula]

C7H6BrNO2
[MDL Number]

MFCD03618454
[Molecular Weight]

216.03
[MOL File]

20776-50-5.mol
Chemical PropertiesBack Directory
[Appearance]

slight yellow to white powder
[Melting point ]

230-234 °C
[Boiling point ]

352.4±32.0 °C(Predicted)
[density ]

1.793±0.06 g/cm3(Predicted)
[storage temp. ]

Keep in dark place,Inert atmosphere,Room temperature
[form ]

powder to crystal
[pka]

4.71±0.10(Predicted)
[color ]

White to Orange to Green
[Water Solubility ]

Soluble in water (slightly).
[InChI]

InChI=1S/C7H6BrNO2/c8-4-1-2-5(7(10)11)6(9)3-4/h1-3H,9H2,(H,10,11)
[InChIKey]

BNNICQAVXPXQAH-UHFFFAOYSA-N
[SMILES]

C(O)(=O)C1=CC=C(Br)C=C1N
[CAS DataBase Reference]

20776-50-5(CAS DataBase Reference)
Safety DataBack Directory
[Symbol(GHS) ]

Skull and Crossbones (GHS06)
GHS06
[Signal word ]

Danger
[Hazard statements ]

H301
[Precautionary statements ]

P264-P270-P301+P310-P405-P501
[Hazard Codes ]

Xn
[Risk Statements ]

R22:Harmful if swallowed.
[Safety Statements ]

S36/37:Wear suitable protective clothing and gloves .
[RIDADR ]

UN 2811 6.1/PG 3
[WGK Germany ]

3
[HazardClass ]

IRRITANT
[HS Code ]

29224999
Hazard InformationBack Directory
[Chemical Properties]

slight yellow to white powder
[Uses]

2-Amino-4-bromobenzoic acid, , is used as an important raw material and intermediate used in organic Synthesis, pharmaceuticals, agrochemicals and dyestuff.
[reaction suitability]

reaction type: solution phase peptide synthesis
[Synthesis]

4-Bromo-2-nitrobenzoic acid

99277-71-1

2-Amino-4-bromobenzoic acid

20776-50-5

2) Under stirring conditions, 4-bromo-2-nitrobenzoic acid (1.80 g, 7.83 mmol) was dissolved in 0.88 N aqueous sodium hydroxide (10 mL), followed by the sequential addition of ferric (III) chloride (133 mg) and isopropanol (0.7 mL). Hydrazine hydrate (1.1 mL) was slowly added dropwise to the above mixture and the reaction system was warmed up to 75 °C with continuous stirring for 2 hours. After completion of the reaction, the mixture was filtered and the filtrate was concentrated to give the crude product. The crude product was washed with water to afford 4-bromo-2-aminobenzoic acid (1.73 g, 96% yield). The structure of the product was confirmed by 1H NMR (DMSO-d6): δ 6.62 (dd, J = 1.5, 8.5 Hz, 1H), 6.95 (d, J = 1.5 Hz, 1H), 7.56 (d, J = 8.5 Hz, 1H).

[References]

[1] Patent: US2004/116422, 2004, A1. Location in patent: Page/Page column 31
[2] Organic Letters, 2011, vol. 13, # 19, p. 5220 - 5223
[3] Journal of Organic Chemistry, 1997, vol. 62, # 5, p. 1240 - 1256
[4] Patent: WO2006/51290, 2006, A2. Location in patent: Page/Page column 111; 144
[5] Collection of Czechoslovak Chemical Communications, 1935, vol. 7, p. 436,443
Spectrum DetailBack Directory
[Spectrum Detail]

2-Amino-4-bromobenzoic acid(20776-50-5)1HNMR
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

20776-50-5(sigmaaldrich)
[TCI AMERICA]

4-Bromoanthranilic Acid,>98.0%(LC)(T)(20776-50-5)
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