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4-FLUORO-2-HYDROXYBENZOIC ACID

CAS No.
345-29-9
Chemical Name:
4-FLUORO-2-HYDROXYBENZOIC ACID
Synonyms
4-FLUOROSALICYCLIC ACID;uorosaL;RARECHEM AL BE 1428;4-FLUOROSALICYLIC ACID;Tavaborole Impurity 23;luorohydroxybenzoicacid;4-FluorosalicylicAcid>Azithromycin Impurity 51;4-Fluorosalicylicacid,98%;fluorohydroxybenzoicacid5
CBNumber:
CB8663418
Molecular Formula:
C7H5FO3
Molecular Weight:
156.11
MDL Number:
MFCD00153168
MOL File:
345-29-9.mol
MSDS File:
SDS
Last updated:2025-07-24 18:13:47
Product description Number Pack Size Price
4-Fluorosalicylic acid 96% 554332 1g $34.96
4-Fluorosalicylic Acid >98.0%(GC)(T) F0637 1g $46
4-Fluorosalicylic Acid >98.0%(GC)(T) F0637 5g $136
4-Fluorosalicylic Acid >98.0%(GC)(T) F0637 25g $405
4-Fluoro-2-hydroxybenzoicacid F596145 100mg $45
More product size

4-FLUORO-2-HYDROXYBENZOIC ACID Properties

Melting point 170 °C (dec.) (lit.)
Boiling point 300.5±27.0 °C(Predicted)
Density 1.492±0.06 g/cm3(Predicted)
storage temp. Inert atmosphere,Room Temperature
solubility Soluble in methanol.
pka 2.85±0.10(Predicted)
form Crystalline Powder
color White to orange
BRN 2209124
InChI InChI=1S/C7H5FO3/c8-4-1-2-5(7(10)11)6(9)3-4/h1-3,9H,(H,10,11)
InChIKey TTZOLDXHOCCNMF-UHFFFAOYSA-N
SMILES C(O)(=O)C1=CC=C(F)C=C1O
CAS DataBase Reference 345-29-9(CAS DataBase Reference)
UNSPSC Code 12352100
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26
WGK Germany  3
Hazard Note  Corrosive
HazardClass  IRRITANT
HS Code  29182900
NFPA 704
1
2 0

4-FLUORO-2-HYDROXYBENZOIC ACID price More Price(33)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 554332 4-Fluorosalicylic acid 96% 345-29-9 1g $34.96 2025-07-31 Buy
TCI Chemical F0637 4-Fluorosalicylic Acid >98.0%(GC)(T) 345-29-9 1g $46 2025-07-31 Buy
TCI Chemical F0637 4-Fluorosalicylic Acid >98.0%(GC)(T) 345-29-9 5g $136 2025-07-31 Buy
TCI Chemical F0637 4-Fluorosalicylic Acid >98.0%(GC)(T) 345-29-9 25g $405 2025-07-31 Buy
TRC F596145 4-Fluoro-2-hydroxybenzoicacid 345-29-9 100mg $45 2021-12-16 Buy
Product number Packaging Price Buy
554332 1g $34.96 Buy
F0637 1g $46 Buy
F0637 5g $136 Buy
F0637 25g $405 Buy
F596145 100mg $45 Buy

4-FLUORO-2-HYDROXYBENZOIC ACID Chemical Properties,Uses,Production

Chemical Properties

White solid

Uses

4-Fluorosalicylic acid is an important raw material and intermediate used in organic synthesis, pharmaceuticals, agrochemicals and dyestuff.

General Description

4-Fluorosalicylic acid can be synthesized from the following compounds:

  • 4-fluorotoluene
  • m-fluorophenol
  • 4-aminosalicylic acid

Synthesis

2,4-Difluorobenzoic acid

1583-58-0

4-FLUORO-2-HYDROXYBENZOIC ACID

345-29-9

General procedure for the synthesis of 4-fluorosalicylic acid from 2,4-difluorobenzoic acid: dimethylsulfoxide (DMSO, 4 L), 2,4-difluorobenzoic acid (500 g, 3.16 mol) and sodium hydroxide (NaOH, 253 g, 6.32 mol) were added to a dry 10 L four-neck flask. The mixture was heated to 130 °C and reacted for about 8 h, during which the progress of the reaction was monitored by thin layer chromatography (TLC). Upon completion of the reaction, the reaction system was cooled to room temperature. Subsequently, the reaction solution was slowly poured into 40 L of ice water and the pH was adjusted to 2?3 with concentrated hydrochloric acid (care was taken that the temperature did not exceed 20 °C during the adjustment). At this time, a large amount of solid precipitated, continue to stir for 2 hours and then pump-filtered. The filter cake was washed with appropriate amount of water to obtain a white solid. The resulting solid was dried under reduced pressure at 60°C for 12 h. 450 g of 4-fluorosalicylic acid was finally obtained with a yield of 90% and a melting point of 184.9-185.2°C. The solid was dried at 60°C for 12 h under reduced pressure.

References

[1] Journal of Fluorine Chemistry, 2003, vol. 121, # 1, p. 97 - 99
[2] Patent: CN107501260, 2017, A. Location in patent: Paragraph 0030; 0031; 0033; 0034
[3] Bioorganic and Medicinal Chemistry, 2004, vol. 12, # 21, p. 5661 - 5675
[4] Patent: WO2013/148857, 2013, A1. Location in patent: Paragraph 00393; 00407; 00417

1583-58-0
345-29-9
Synthesis of 4-FLUORO-2-HYDROXYBENZOIC ACID from 2,4-Difluorobenzoic acid

4-FLUORO-2-HYDROXYBENZOIC ACID Preparation Products And Raw materials

Global( 259)Suppliers
Supplier Tel Email Country ProdList Advantage
Blocksynth Pharmaceutical Technology Co.,Ltd
0086-19817745290; +8619817745290 bd@blocksynth.com China 5661 58
Shaanxi Dideu Medichem Co. Ltd
+86-029-81138252 +86-173 9270 1263 1057@dideu.com China 3999 58
Capot Chemical Co.,Ltd.
+86-(0)57185586718; +8613336195806 sales@capot.com China 29735 60
Shanghai Daken Advanced Materials Co.,Ltd
+86-2158073036 info@dakenam.com China 13505 58
Fluoropharm Co., Ltd.
+86-0571-85586753 +86-13336034509 sales@fluoropharm.com China 1445 60
ATK CHEMICAL COMPANY LIMITED
+undefined-21-51877795 ivan@atkchemical.com China 33024 60
career henan chemical co
+86-0371-86658258 +8613203830695 sales@coreychem.com China 29850 58
SHANDONG ZHI SHANG CHEMICAL CO.LTD
+86 18953170293 sales@sdzschem.com China 2930 58
Shenzhen Nexconn Pharmatechs Ltd
+86-755-89396905 +86-15013857715 admin@nexconn.com China 10405 58
Alchem Pharmtech,Inc.
8485655694 sales@alchempharmtech.com United States 63687 58

View Lastest Price from 4-FLUORO-2-HYDROXYBENZOIC ACID manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
4-FLUORO-2-HYDROXYBENZOIC ACID pictures 2024-06-04 4-FLUORO-2-HYDROXYBENZOIC ACID
345-29-9
US $1.00 / KG 1KG 99% 20t Shaanxi Dideu Medichem Co. Ltd
4-FLUORO-2-HYDROXYBENZOIC ACID pictures 2023-03-28 4-FLUORO-2-HYDROXYBENZOIC ACID
345-29-9
US $0.00-0.00 / kg 1kg 98% 1000kg LY Global chemicals co.,ltd .
4-FLUORO-2-HYDROXYBENZOIC ACID pictures 2019-07-14 4-FLUORO-2-HYDROXYBENZOIC ACID
345-29-9
US $8.80 / KG 1KG 97%-99% 100kg Career Henan Chemical Co
fluorohydroxybenzoicacid5 RARECHEM AL BE 1428 4-FLUORO-2-HYDROXYBENZOIC ACID 4-FLUOROSALICYLIC ACID 2-HYDROXY-4-FLUOROBENZOIC ACID 4-Fluoro-2-Hydroxybenzoic Acid 2-Hydroxy-4-Fluoro Benzoic Acid 4-Fluorosalicylicacid,98% 4-Fluoro-2-hydroxybenzoic acid 99% 4-Fluoro-2-hydroxybenzoicacid99% 4-Fluorosalicylic acid, 2-Carboxy-5-fluorophenol Benzoic acid,4-fluoro-2-hydroxy- luorohydroxybenzoicacid Tavaborole Impurity 23 uorosaL 4-FluorosalicylicAcid> 4-FLUOROSALICYCLIC ACID Azithromycin Impurity 51 345-29-9 Building Blocks Carboxylic Acids Carbonyl Compounds C7 Organic Building Blocks Fluorine series Carboxylic Acids Aromatic Carboxylic Acids, Amides, Anilides, Anhydrides & Salts Benzoic acid Acids & Esters Fluorine Compounds Phenols C7 Carbonyl Compounds