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112909

Sigma-Aldrich

Ethyl 4-aminobenzoate

98%

Synonym(s):

Et-PABA, Ethyl p-aminobenzoate

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RM 323.00
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RM 1,463.00

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Estimated to ship on31 March 2025

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5 G
RM 264.00
100 G
RM 323.00
500 G
RM 1,463.00

About This Item

Linear Formula:
H2NC6H4CO2C2H5
CAS Number:
94-09-7
Molecular Weight:
165.19
EC Number:
202-303-5
MDL number:
MFCD00007892
UNSPSC Code:
12352100
PubChem Substance ID:
57646909
NACRES:
NA.21

RM 264.00

Estimated to ship on31 March 2025

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Quality Level

200

Assay

98%

form

solid

mp

88-90 °C (lit.)

functional group

ester

SMILES string

CCOC(=O)c1ccc(N)cc1

InChI

1S/C9H11NO2/c1-2-12-9(11)7-3-5-8(10)6-4-7/h3-6H,2,10H2,1H3

InChI key

BLFLLBZGZJTVJG-UHFFFAOYSA-N

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General description

Vibrational spectral investigations of ethyl 4-aminobenzoate in solid phase have been reported.[1] It affords an electroactive conducting copolymer with o-anisidine, via an electrochemical synthesis employing cyclic voltammetry.[2]

Application

Ethyl 4-aminobenzoate may be used in the synthesis of ethyl 4-[(E)-(2-hydroxy-4-methoxyphenyl)methyleneamino] benzoate (Schiff base), via reaction with 2-hydroxy-4-methoxybenzaldehyde.[3]

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H317

Hazard Classifications

Skin Sens. 1

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

233.6 °F

Flash Point(C)

112 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
0000398414
0000398384
0000355365
0000355364
0000330150

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Biphenyl ≥99%

Sigma-Aldrich

W312908

Biphenyl

Electrochemical Synthesis and Characterization of Nano Poly (o-anisidine-co-ethyl 4-aminobenzoate).
Sasikumar R and Manisankar P.
Advanced Materials Research, 678, 239-243 (2013)
S Muthu et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 112, 169-181 (2013-05-15)
The FT-IR and FT-Raman spectra of ethyl 4-aminobenzoate (EAB) in the solid phase were recorded. The fundamental vibrational wavenumbers, intensities of vibrational bands and the optimized geometrical parameters of the compound were evaluated using DFT (B3LYP) method with 6-311++G(d,p) basis
Elena Pahonțu et al.
Molecules (Basel, Switzerland), 20(4), 5771-5792 (2015-04-08)
A novel Schiff base, ethyl 4-[(E)-(2-hydroxy-4-methoxyphenyl)methylene-amino]benzoate (HL), was prepared and structurally characterized on the basis of elemental analyses, (1)H NMR, (13)C NMR, UV-Vis and IR spectral data. Six new copper(II) complexes, [Cu(L)(NO3)(H2O)2] (1), [Cu(L)2] (2), [Cu(L)(OAc)] (3), [Cu2 (L)2Cl2(H2O)4] (4)
Sherry I Bame et al.
American journal of preventive medicine, 43(6 Suppl 5), S435-S442 (2012-11-28)
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Qing Zhu et al.
Molecular pharmaceutics, 9(3), 546-553 (2012-02-04)
The crystallization kinetics of various active pharmaceutical ingredient/polyethylene glycol (API/PEG) solid dispersions has been investigated using wide-angle X-ray diffraction (XRD) and Raman spectroscopy. APIs with different physicochemical properties and crystallization tendency were employed to form solid dispersions with PEG. The
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

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