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FMOC-4-AMINOBENZOIC ACID

Product Name
FMOC-4-AMINOBENZOIC ACID
CAS No.
185116-43-2
Chemical Name
FMOC-4-AMINOBENZOIC ACID
Synonyms
FMOC-PABA-OH;FMOC-P-ABZ-OH;FMOC-4-ABZ-OH;RARECHEM EM WB 0013;FMOC-4-AMINOBENZOIC ACID;Fmoc-PABA-OH Novabiochem;4-(FMOC-AMINO)BENZOIC ACID;N-FMOC-4-AMINOBENZOIC ACID;Fmoc-4-aminobenzoic acid98+%;4-(FMOC-AMINO)BENZOIC ACID 96+%
CBNumber
CB9437320
Molecular Formula
C22H17NO4
Formula Weight
359.37
MOL File
185116-43-2.mol
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FMOC-4-AMINOBENZOIC ACID Property

Melting point:
~277 °C (dec.)
Boiling point:
544.9±33.0 °C(Predicted)
Density 
1.352±0.06 g/cm3(Predicted)
storage temp. 
2-8°C
pka
4.29±0.10(Predicted)
form 
powder
Appearance
White to off-white Solid
BRN 
7722986
CAS DataBase Reference
185116-43-2(CAS DataBase Reference)
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Safety

Safety Statements 
22-24/25
WGK Germany 
3
10
HS Code 
2924 29 70
HazardClass 
IRRITANT
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

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

P302+P352IF ON SKIN: wash with plenty of soap and water.

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

P321Specific treatment (see … on this label).

P332+P313IF SKIN irritation occurs: Get medical advice/attention.

P362Take off contaminated clothing and wash before reuse.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
8.52219
Product name
Fmoc-PABA-OH
Purity
Novabiochem?
Packaging
1g
Price
$28.6
Updated
2025/07/31
Sigma-Aldrich
Product number
8.52219
Product name
Fmoc-PABA-OH
Purity
Novabiochem?
Packaging
5G
Price
$71.8
Updated
2025/07/31
Sigma-Aldrich
Product number
8.52219
Product name
Fmoc-PABA-OH
Purity
Novabiochem?
Packaging
25g
Price
$295
Updated
2025/07/31
Sigma-Aldrich
Product number
47307
Product name
Fmoc-4-Abz-OH
Purity
≥96.0% (TLC)
Packaging
1g
Price
$83.1
Updated
2025/07/31
TRC
Product number
F603565
Product name
Fmoc-4-aminobenzoicacid
Packaging
500mg
Price
$65
Updated
2021/12/16
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FMOC-4-AMINOBENZOIC ACID Chemical Properties,Usage,Production

Chemical Properties

White powder

Uses

Fmoc-4-aminobenzoic acid is used in the improved rapid synthesis of oligo(benzamide) block copolymers.

reaction suitability

reaction type: Fmoc solid-phase peptide synthesis

Synthesis

28920-43-6

150-13-0

185116-43-2

Under an inert atmosphere, p-aminobenzoic acid (10 g, 73 mmol) was dissolved in anhydrous N-methylpyrrolidone (NMP, 50 mL). Subsequently, a solution of anhydrous NMP (50 mL) of 9-fluorenylmethyl chloroformate (Fmoc-Cl, 18.9 g, 73 mmol) was slowly added dropwise. The reaction mixture was stirred at room temperature for 24 hours. Upon completion of the reaction, the mixture was slowly poured into 400 mL of water to precipitate the product. The colorless precipitate was collected by filtration and washed with plenty of water. Finally, the product was dried under vacuum at 120 °C to afford N-Fmoc-p-aminobenzoic acid (24.8 g, 94% yield). The melting point of the product was 215 °C (decomposition). Nuclear magnetic resonance hydrogen spectrum (1H-NMR, 300 MHz, DMSO-d6): δ 4.33 (t, J = 6.25 Hz, 1H), 4.54 (d, J = 6.25 Hz, 2H), 7.33-7.45 (m, 4H), 7.57 (d, J = 7.35 Hz, 2H), 7.76 (d, J = 7.35 Hz, 2H), and 7.89 (m, 4H), 10.08 (s, 1H), 12.69 (s, 1H). NMR carbon spectrum (13C-NMR and DEPT, 300 MHz, DMSO-d6): δ 46.61 (CH2), 65.83 (CH), 117.5 (CH), 120.22 (CH), 124.48 (C), 125.14 (CH), 127.17 (CH), 127.74 (CH), 130.48 ( CH), 140.86 (C), 143.31 (C), 143.74 (C), 153.31 (C), 167.03 (C). Infrared spectra (IR, ν, cm-1): 3344, 2970, 2887, 2660, 2544, 1709, 1673, 1610, 1592, 1526, 1511, 1411, 1311, 1282, 1221, 1052, 850, 736. reversed-phase high performance liquid chromatography (RP-HPLC) retention time: 26.6 Minutes. Mass spectrometry (FD-MS): m/z (%) = 359.1 (100), 360.1 (17.4); calculated value [C22H17NO4] = 359.1.

References

[1] Tetrahedron Letters, 2013, vol. 54, # 8, p. 753 - 756
[2] Chemical Communications, 2013, vol. 49, # 40, p. 4555 - 4557
[3] Journal of Chemical Research, Miniprint, 1998, # 10, p. 2736 - 2753
[4] Chemical Communications, 2014, vol. 50, # 14, p. 1691 - 1693

FMOC-4-AMINOBENZOIC ACID Preparation Products And Raw materials

Raw materials

Preparation Products

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FMOC-4-AMINOBENZOIC ACID Suppliers

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185116-43-2, FMOC-4-AMINOBENZOIC ACIDRelated Search:


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