Benzaldehyde, 3,4-difluoro-2-hydroxy- (9CI)
- CAS No.
- 502762-95-0
- Chemical Name:
- Benzaldehyde, 3,4-difluoro-2-hydroxy- (9CI)
- Synonyms
- 3,4-difluorosalicyladehyde;Benzaldehyde, 3,4-difluoro-2-hydroxy-;Benzaldehyde, 3,4-difluoro-2-hydroxy- (9CI)
- CBNumber:
- CB01044247
- Molecular Formula:
- C7H4F2O2
- Molecular Weight:
- 158.1
- MDL Number:
- MOL File:
- 502762-95-0.mol
- MSDS File:
- SDS
| Boiling point | 192.2±35.0 °C(Predicted) |
|---|---|
| Density | 1.464±0.06 g/cm3(Predicted) |
| storage temp. | under inert gas (nitrogen or Argon) at 2-8°C |
| pka | 5.92±0.15(Predicted) |
| form | crystalline powder |
| color | White |
| InChI | InChI=1S/C7H4F2O2/c8-5-2-1-4(3-10)7(11)6(5)9/h1-3,11H |
| InChIKey | ZIDMZOAQFCFSHA-UHFFFAOYSA-N |
| SMILES | C(=O)C1=CC=C(F)C(F)=C1O |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H315-H319-H335 |
| Precautionary statements | P261-P305+P351+P338 |
| HS Code | 2913000090 |
Benzaldehyde, 3,4-difluoro-2-hydroxy- (9CI) price More Price(34)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Apolloscientific | PC201259 | 3,4-Difluoro-2-hydroxybenzaldehyde 95% | 502762-95-0 | 250mg | $29 | 2026-06-04 | Buy |
| Apolloscientific | PC201259 | 3,4-Difluoro-2-hydroxybenzaldehyde 95% | 502762-95-0 | 1g | $74 | 2026-06-04 | Buy |
| Apolloscientific | PC201259 | 3,4-Difluoro-2-hydroxybenzaldehyde 95% | 502762-95-0 | 5g | $256 | 2026-06-04 | Buy |
| Activate Scientific | AS47310 | 3,4-Difluoro-2-hydroxybenzaldehyde 98% | 502762-95-0 | 1g | $82 | 2026-06-04 | Buy |
| Activate Scientific | AS47310 | 3,4-Difluoro-2-hydroxybenzaldehyde 98% | 502762-95-0 | 5g | $277 | 2026-06-04 | Buy |
Benzaldehyde, 3,4-difluoro-2-hydroxy- (9CI) Chemical Properties, Uses, Production
Synthesis
936328-58-4
502762-95-0
General procedure for the synthesis of 3,4-difluoro-2-hydroxybenzaldehyde from 2-hydroxy-3,4-difluorobenzyl alcohol: To a stirred solution of 2-hydroxy-3,4-difluorobenzyl alcohol (2.5 g, 15.62 mmol) in dichloromethane (20 mL) was slowly added DDQ (5.32 g, 23.43 mmol) in dichloromethane (-5 to 0°C) ( 10mL) solution. The reaction mixture was then stirred overnight at room temperature. The progress of the reaction was monitored by thin layer chromatography (TLC) to confirm complete consumption of the raw materials. Upon completion of the reaction, the mixture was filtered through a bed of diatomaceous earth and the filtrate was concentrated under vacuum to obtain the crude product. The crude product was purified by silica gel column chromatography using pure dichloromethane as eluent to give the target product 3,4-difluoro-2-hydroxybenzaldehyde (2 g, 83% yield). Mass spectrometry (MS) analysis showed m/z 157 (M + 1).
References
[1] Patent: WO2008/77009, 2008, A1. Location in patent: Page/Page column 46
Benzaldehyde, 3,4-difluoro-2-hydroxy- (9CI) Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Capot Chemical Co., Ltd | +86 (0) 571 85 58 67 18 | China | 18187 | 66 | |
| Beijing Ouhe Technology Co., Ltd | 13552068683 13522913783 | 2355560935@qq.com | China | 11777 | 60 |
| Shanghai Hanhong Scientific Co.,Ltd. | 021-54306202 13764082696 | info@hanhongsci.com | China | 42917 | 64 |
| Shanghai Topbiochem Technology Co., Ltd | 021-58170097 | info@topbiochem.com | China | 9509 | 58 |
| Tianjin Ji Ping Jia Chemical Co., Ltd. | 18622448868 | jpjchem@163.com | China | 498 | 62 |
| Changzhou Anxuan Chemical, Co., Ltd. | 13912302692 | sales@anxuanchem.com | China | 4824 | 58 |
| SanoChem (Chengdu) Tech. Co., Ltd. | 28-87999436 02887999436 | sales@sano-chem.com | China | 3792 | 55 |
| Shanghai Haozhixiang Biotechnology Co., Ltd | 526763801 13301653310 | 526763801@qq.com | China | 7983 | 55 |
| Amadis Chemical Company Limited | 571-89925085 | sales@amadischem.com | China | 131885 | 58 |
| Nanjing YakeLun Pharmaceutical Co., Ltd. | 025-66096098 3165145969 | sales@accoronpharm.com | China | 3924 | 55 |
View Latest Price from Benzaldehyde, 3,4-difluoro-2-hydroxy- (9CI) manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2020-01-01 | Benzaldehyde, 3,4-difluoro-2-hydroxy- (9CI)
502762-95-0
|
$1.00 | 1KG | 95-99% | 1ton | Career Henan Chemical Co | |
 |
2019-12-20 | Benzaldehyde, 3,4-difluoro-2-hydroxy- (9CI)
502762-95-0
|
1g | 95%min | 20kg/month | Nanjing jinheyou Trading Co., Ltd. |
-
- Benzaldehyde, 3,4-difluoro-2-hydroxy- (9CI)
502762-95-0
- $1.00
- 95-99%
- Career Henan Chemical Co
-
- Benzaldehyde, 3,4-difluoro-2-hydroxy- (9CI)
502762-95-0
- $0.00
- 95%min
- Nanjing jinheyou Trading Co., Ltd.
