3-Fluoro-4-hydroxybenzaldehyde
Uses- Product Name
- 3-Fluoro-4-hydroxybenzaldehyde
- CAS No.
- 405-05-0
- Chemical Name
- 3-Fluoro-4-hydroxybenzaldehyde
- Synonyms
- uoro-4-hydroxybenzaL;2-Fluoro-4-formylphenol;4-HYDROXY-3-FLUOROBENZALDEHYDE;3-FLUORO-4-HYDROXYBENZALDEHYDE;3-Fluoro-4-hydroxybenzaldehyde>Benzaldehyde, 3-fluoro-4-hydroxy-;3-Fluoro-4-hydroxybenzaldehyde ,98%
- CBNumber
- CB2179108
- Molecular Formula
- C7H5FO2
- Formula Weight
- 140.11
- MOL File
- 405-05-0.mol
3-Fluoro-4-hydroxybenzaldehyde Property
- Melting point:
- 121-124°C
- Boiling point:
- 225.6±20.0 °C(Predicted)
- Density
- 1.4710 (estimate)
- storage temp.
- under inert gas (nitrogen or Argon) at 2-8°C
- form
- powder to crystal
- pka
- 6.52±0.18(Predicted)
- color
- Light yellow to Yellow to Orange
- Sensitive
- Air Sensitive
- BRN
- 3234259
- InChI
- InChI=1S/C7H5FO2/c8-6-3-5(4-9)1-2-7(6)10/h1-4,10H
- InChIKey
- QSBHJTCAPWOIIE-UHFFFAOYSA-N
- SMILES
- C(=O)C1=CC=C(O)C(F)=C1
- CAS DataBase Reference
- 405-05-0(CAS DataBase Reference)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38-52-41-37/38
- Safety Statements
- 26-36-36/37/39-27-39
- HazardClass
- IRRITANT
- HS Code
- 29145090
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
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405Store locked up.
N-Bromosuccinimide Price
- Product number
- CDS003043
- Product name
- 3-Fluoro-4-hydroxybenzaldehyde
- Purity
- Aldrich<SUP>CPR</SUP>
- Packaging
- 250 mg
- Price
- $73.1
- Updated
- 2025/07/31
- Product number
- F0725
- Product name
- 3-Fluoro-4-hydroxybenzaldehyde
- Purity
- >98.0%(GC)
- Packaging
- 1g
- Price
- $84
- Updated
- 2025/07/31
- Product number
- F0725
- Product name
- 3-Fluoro-4-hydroxybenzaldehyde
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $206
- Updated
- 2025/07/31
- Product number
- F591905
- Product name
- 3-Fluoro-4-hydroxybenzaldehyde
- Packaging
- 5g
- Price
- $85
- Updated
- 2021/12/16
- Product number
- J54168
- Product name
- 3-Fluoro-4-hydroxybenzaldehyde
- Packaging
- 25g
- Price
- $105
- Updated
- 2021/12/16
3-Fluoro-4-hydroxybenzaldehyde Chemical Properties,Usage,Production
Uses
3-Fluoro-4-hydroxybenzaldehyde can be used to synthesize 3-Cyclopropylmethoxy-4-difluoromethoxybenzoic Acid, which is an impurity and intermediate in the preparation of Roflumilast.
Chemical Properties
White crystalline powder
Uses
3-Fluoro-4-hydroxybenzaldehyde can be used to synthesize 3-Cyclopropylmethoxy-4-difluoromethoxybenzoic Acid (C988720), which is an impurity and intermediate in the preparation of Roflumilast (R639700).
Synthesis
351-54-2
405-05-0
The general procedure for the synthesis of 3-fluoro-4-hydroxybenzaldehyde from 3-fluoro-4-methoxybenzaldehyde was as follows: 3-fluoro-4-methoxybenzaldehyde (1 g, 6.5 mmol) was mixed with boron tribromide (1 M solution in dichloromethane, 19.5 mmol) in dichloromethane, and the reaction was stirred for 24 hours under ice bath conditions. Upon completion of the reaction, an excess of anhydrous methanol was added to the reaction system, followed by removal of the solvent and the resulting trimethyl borate by distillation under reduced pressure. The residue was dissolved in methanol and again subjected to reduced pressure distillation to completely remove the residual trimethyl borate. The resulting solid residue was dissolved in ethyl acetate, the organic phase was washed with water (3 x 100 ml) and dried with anhydrous sodium sulfate. The organic solvent was removed by concentration under reduced pressure, and the crude product obtained was purified by silica gel column chromatography (eluent ratio of petroleum ether:ethyl ether=8:2) to finally obtain the pure 3-fluoro-4-hydroxybenzaldehyde. The yield was 91%; the melting point was 120-123 °C; the 1H NMR (CDCl3) data were as follows: δ 6.04 (s, exchangeable with D2O, 1H, OH); 7.16 (m, 1H, aromatic hydrogen); 7.62-7.67 (m, 2H, aromatic hydrogen); 9.86 (s, 1H, CHO). Elemental analysis results (C7H5FO2) Calculated values: C 60.01, H 3.60; measured values: C 59.93, H 3.77.
References
[1] European Journal of Medicinal Chemistry, 2014, vol. 71, p. 112 - 127
[2] Patent: WO2012/11125, 2012, A1. Location in patent: Page/Page column 88-89
[3] Journal of Medicinal Chemistry, 2000, vol. 43, # 4, p. 690 - 705
[4] Bioorganic and Medicinal Chemistry, 2010, vol. 18, # 14, p. 5032 - 5038
3-Fluoro-4-hydroxybenzaldehyde Preparation Products And Raw materials
Raw materials
Preparation Products
3-Fluoro-4-hydroxybenzaldehyde Suppliers
- Tel
- --
- Fax
- --
- chemcontrol@nextra.sk
- Country
- Slovakia
- ProdList
- 6700
- Advantage
- 60
View Lastest Price from 3-Fluoro-4-hydroxybenzaldehyde manufacturers
- Product
- 3-Fluoro-4-hydroxybenzaldehyde 405-05-0
- Price
- US $9.90/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 10 mt
- Release date
- 2024-12-11
- Product
- 3-Fluoro-4-hydroxybenzaldehyde 405-05-0
- Price
- US $25.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 300 Tons/ year
- Release date
- 2019-12-25
- Product
- 3-Fluoro-4-hydroxybenzaldehyde 405-05-0
- Price
- US $0.00-0.00/g
- Min. Order
- 10mg
- Purity
- 99%HPLC
- Supply Ability
- 2000tons
- Release date
- 2020-01-15