3,5-Dibenzyloxyacetophenone
- CAS No.
- 28924-21-2
- Chemical Name:
- 3,5-Dibenzyloxyacetophenone
- Synonyms
- 3';TerbutalineImpurity46;Terbutaline Impurity 1;Terbutaline Impurity 5;3,5-benzyloxy Acetophenone;3,5-Dibenxyloxyacetophenone;3,5-DIBENZYLOXYACETOPHENONE;3, 5-dibenzoxy acetophenone;3,5-Dibenzyloxybenzophenone;3',5'-DIBENZYLOXYACETPHENONE
- CBNumber:
- CB0185952
- Molecular Formula:
- C22H20O3
- Molecular Weight:
- 332.39
- MDL Number:
- MFCD00004777
- MOL File:
- 28924-21-2.mol
- MSDS File:
- SDS
| Melting point | 60-62 °C (lit.) |
|---|---|
| Boiling point | 429.52°C (rough estimate) |
| Density | 1.1079 (rough estimate) |
| refractive index | 1.6000 (estimate) |
| storage temp. | Sealed in dry,Room Temperature |
| solubility | Soluble in dichloromethane, ethyl acetate and methanol |
| form | Solid |
| color | Off-White to Pale Yellow |
| InChI | InChI=1S/C22H20O3/c1-17(23)20-12-21(24-15-18-8-4-2-5-9-18)14-22(13-20)25-16-19-10-6-3-7-11-19/h2-14H,15-16H2,1H3 |
| InChIKey | KOJXGMJOTRYLBD-UHFFFAOYSA-N |
| SMILES | C(=O)(C1=CC(OCC2=CC=CC=C2)=CC(OCC2=CC=CC=C2)=C1)C |
| CAS DataBase Reference | 28924-21-2(CAS DataBase Reference) |
| FDA UNII | K8HQL6DG8R |
| EPA Substance Registry System | Ethanone, 1-[3,5-bis(phenylmethoxy)phenyl]- (28924-21-2) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319-H335 | |||||||||
| Precautionary statements | P261-P301+P312-P302+P352-P304+P340-P305+P351+P338 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Hazard Codes | Xi | |||||||||
| Safety Statements | 24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| Hazard Note | Irritant | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29145090 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
3,5-Dibenzyloxyacetophenone price More Price(54)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 215341 | 3,5-Dibenzyloxyacetophenone 98% | 28924-21-2 | 50g | $216 | 2023-06-20 | Buy |
| TCI Chemical | D2085 | 3',5'-Dibenzyloxyacetophenone | 28924-21-2 | 10g | $185 | 2026-04-30 | Buy |
| TRC | TRC-D417970-5G | 3’,5’-Dibenzyloxyacetophenone | 28924-21-2 | 5g | $119 | 2026-06-03 | Buy |
| TRC | TRC-D417970-250MG | 3’,5’-Dibenzyloxyacetophenone | 28924-21-2 | 250mg | $65 | 2026-06-03 | Buy |
| TRC | TRC-D417970-2.5G | 3’,5’-Dibenzyloxyacetophenone | 28924-21-2 | 2.5g | $78 | 2026-06-03 | Buy |
3,5-Dibenzyloxyacetophenone Chemical Properties, Uses, Production
Preparation
Over 1.5 hours, methyllithium (531 mL 2 mol solution, 1.06 M) was added to a rapidly stirred solution of 3,5-dibenzyloxybenzoic acid (175 g, 0.532 M) in diethyl ether (250 mL) and tetrahydrofuran (1400 mL) at 15°–20°C. After stirring for another 0.75 hours at 10°–15°C, water (600 mL) was slowly added, maintaining the reaction temperature below 20°C. The aqueous layer was separated and extracted with diethyl ether (3 × 250 mL). The combined organic phases were washed with saturated sodium chloride solution (4 × 300 mL), dried over sodium sulfate, and concentrated under vacuum to give an oil that slowly crystallized from isopropyl ether. The crude product was recrystallized from diethyl ether-hexane to give 104.7 g. (59%) 3,5-Dibenzyloxyacetophenone; melting point 59°-61° C.
Chemical Properties
beige crystalline powder.
Uses
3,5-Dibenzyloxyacetophenone is used in the synthesis of enantiomerically pure B-ring modified analogs of (-)-epicatechin gallate.
Uses
The product 3,5-dibenzyloxyacetophenone is widely used as intermediate in the production of a pharmaceutical for treatment of obesity, diabetes, glaucoma, AIDS, HIV infection, antiinflammatory effects, and also in the treatment of disorders which result from leukotriene, tranquilizers, hypotensives, diuretics, and antiglaucoma agents.[1]
References
[1] Ganapati D. Yadav, Omprakash V. Badure. “Selective acylation of 1,3-dibenzyloxybenzene to 3,5-dibenzyloxyacetophenone over cesium modified dodecatungstophosphoric acid (DTP) on clay.” Applied Catalysis A: General 348 1 (2008): Pages 16-25.
3,5-Dibenzyloxyacetophenone Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| JIANGYIN RUISHIPHARM CO.,LIMITED | 0510-0510-66227179 18921203887 | sales@ruishipharm.com | China | 747 | 58 |
| Guangdong wengjiang Chemical Reagent Co., Ltd. | 0751-2815688 13927872512 | 3007421951@qq.com | China | 9996 | 58 |
| Jiangxi Boyang Pharmaceutical Chemical Co., Ltd. | 15870608400 | 717293806@qq.com | China | 34 | 58 |
| Shengyang Runze (Beijing) Technology Co., | 17611011830 | lyt001@syrz01.com | China | 179 | 58 |
| Yancheng Yuntao Chemical Co., Ltd. | 13512592619 | 2838893166@qq.com | China | 103 | 58 |
| NINGBO SYNTAME BIOTECH CO LTD | +86-0574-28802872 18668283131 | sales@syntame.com | China | 114 | 58 |
| Huaian Jiamu Biotechnology Co., Ltd. | 0517-83187139 18205232085 | cai@jiamu-bio.com | China | 2999 | 58 |
| SHENZHEN PHYSTANDARD BIO-TECH CO.,LTD | 0755-83725350 13380397412 | 3001280422@qq.com | China | 10000 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 4006356688 18621169109 | market03@meryer.com | China | 40202 | 62 |
View Latest Price from 3,5-Dibenzyloxyacetophenone manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
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2026-06-30 | 3,5-Dibenzyloxyacetophenone
28924-21-2
|
1kg | 99% | 10000KGS | Shaanxi Dideu New Materials Co. Ltd | ||
![]() |
2026-03-20 | 3,5-Dibenzyloxyacetophenone
28924-21-2
|
$1.00 | 1KG | 99% | 10 mt | Hebei Chuanghai Biotechnology Co., Ltd | |
![]() |
2025-07-29 | 3,5-Dibenzyloxyacetophenone
28924-21-2
|
$6.00 | 1kg | 99% | 2000KG/Month | HebeiShuoshengImportandExportco.,Ltd |
-

- 3,5-Dibenzyloxyacetophenone
28924-21-2
- $0.00
- 99%
- Shaanxi Dideu New Materials Co. Ltd
-

- 3,5-Dibenzyloxyacetophenone
28924-21-2
- $1.00
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
-

- 3,5-Dibenzyloxyacetophenone
28924-21-2
- $6.00
- 99%
- HebeiShuoshengImportandExportco.,Ltd
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