ChemicalBook > CAS DataBase List > 4-Amino-3-ethylbenzoic acid

4-Amino-3-ethylbenzoic acid

Product Name
4-Amino-3-ethylbenzoic acid
CAS No.
51688-75-6
Chemical Name
4-Amino-3-ethylbenzoic acid
Synonyms
4-Amino-3-ethylbenzoicaci;Benzoic acid, 4-amino-3-ethyl-;4-Amino-3-ethylbenzoic acid hydrochloride
CBNumber
CB7967456
Molecular Formula
C9H11NO2
Formula Weight
165.19
MOL File
51688-75-6.mol
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4-Amino-3-ethylbenzoic acid Property

Melting point:
152-154 °C(Solv: water (7732-18-5); ethanol (64-17-5))
Boiling point:
348.3±35.0 °C(Predicted)
Density 
1.205±0.06 g/cm3(Predicted)
storage temp. 
Keep in dark place,Inert atmosphere,Room temperature
pka
4.93±0.10(Predicted)
Appearance
Brown to reddish brown Solid
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Safety

HS Code 
2935009090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H317May cause an allergic skin reaction

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

American Custom Chemicals Corporation
Product number
CHM0095114
Product name
4-AMINO-3-ETHYL-BENZOIC ACID
Purity
95.00%
Packaging
5MG
Price
$500.7
Updated
2021/12/16
Alichem
Product number
51688756
Product name
4-Amino-3-ethylbenzoicacid
Packaging
500mg
Price
$790.55
Updated
2021/12/16
Crysdot
Product number
CD12066063
Product name
4-Amino-3-ethylbenzoicacid
Purity
98%
Packaging
5g
Price
$234
Updated
2021/12/16
Crysdot
Product number
CD12066063
Product name
4-Amino-3-ethylbenzoicacid
Purity
98%
Packaging
10g
Price
$455
Updated
2021/12/16
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4-Amino-3-ethylbenzoic acid Chemical Properties,Usage,Production

Synthesis

34921-76-1

51688-75-6

Preparation of 4-amino-3-ethylbenzoic acid: N1-(4-cyano-2-ethylphenyl)acetamide (10.1 g, 53.66 mmol) was suspended in 20% aqueous sodium hydroxide (38 mL, 188 mmol) and stirred at reflux for 22 h under nitrogen protection. Upon completion of the reaction, the dark-colored reaction solution was cooled to room temperature, diluted with water (200 mL), and washed with ethyl acetate (2 × 50 mL). The aqueous phase was adjusted to pH 5 with concentrated hydrochloric acid and subsequently extracted with ethyl acetate (2 x 100 mL). The aqueous phase was continued to be adjusted to pH 4 with concentrated hydrochloric acid and again extracted with ethyl acetate (2 × 50 mL). All organic phases were combined, washed with saturated saline (50 mL), dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residual solid was ground with petroleum ether, filtered, and the filter cake was washed with petroleum ether and dried in vacuum to obtain a beige solid 4-amino-3-ethylbenzoic acid (7.49 g, 84.5% yield) with good purity.

References

[1] Patent: US2011/190267, 2011, A1. Location in patent: Page/Page column 55-56

4-Amino-3-ethylbenzoic acid Preparation Products And Raw materials

Raw materials

Preparation Products

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  • Benzoic acid, 4-amino-3-ethyl-
  • 4-Amino-3-ethylbenzoicaci
  • 4-Amino-3-ethylbenzoic acid hydrochloride
  • 51688-75-6
  • pyridine