fenspiride
- CAS No.
- 5053-06-5
- Chemical Name:
- fenspiride
- Synonyms
- DESP;FUBMN24;FUB-MN24;Fenspirid;fenspiride;Fenspiridum;Fenspiride-d5;fenspiride USP/EP/BP;8-phenethyl-1-oxa-3,8-diazaspiro[4.5]decan-2-one;Pharmaceutical intermediates BKEDBP BKEDBP bkedbp
- CBNumber:
- CB8875352
- Molecular Formula:
- C15H20N2O2
- Molecular Weight:
- 260.33
- MDL Number:
- MFCD00867054
- MOL File:
- 5053-06-5.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| Fenspiride 95% | AA00DCDB | 50mg | $224 |
| Fenspiride 97% | CD11114446 | 1g | $375 |
| Fenspiride 97% | CD11114446 | 5g | $1125 |
| 8-phenethyl-1-oxa-3,8-diazaspiro[4.5]decan-2-one 97% | CM124411 | 1g | $351 |
| 8-phenethyl-1-oxa-3,8-diazaspiro[4.5]decan-2-one 97% | CM124411 | 5g | $1052 |
| More product size | |||
| Boiling point | 126-127 °C(Press: 2 Torr) |
|---|---|
| Density | 1.19±0.1 g/cm3(Predicted) |
| pka | 12.44±0.20(Predicted) |
| form | Solid:particulate/powder |
| color | White to off-white |
| LogP | 1.798-1.802 at 20℃ and pH6 |
| FDA UNII | S983QC7HKM |
| ATC code | R03BX01,R03DX03 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   GHS08,GHS07 |
|---|---|
| Signal word | Warning |
| Hazard statements | H412-H302-H361 |
| Precautionary statements | P201-P202-P281-P308+P313-P405-P501-P264-P270-P301+P312-P330-P501-P273-P501 |
| REACH Registrations | Active |
fenspiride price
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| aablocks | AA00DCDB | Fenspiride 95% | 5053-06-5 | 50mg | $224 | 2026-05-28 | Buy |
| Crysdot | CD11114446 | Fenspiride 97% | 5053-06-5 | 1g | $375 | 2026-05-26 | Buy |
| Crysdot | CD11114446 | Fenspiride 97% | 5053-06-5 | 5g | $1125 | 2026-05-26 | Buy |
| Chemenu | CM124411 | 8-phenethyl-1-oxa-3,8-diazaspiro[4.5]decan-2-one 97% | 5053-06-5 | 1g | $351 | 2026-05-26 | Buy |
| Chemenu | CM124411 | 8-phenethyl-1-oxa-3,8-diazaspiro[4.5]decan-2-one 97% | 5053-06-5 | 5g | $1052 | 2026-05-26 | Buy |
fenspiride Chemical Properties,Uses,Production
Originator
Viarespan,Servier,France,1969
Uses
Bronchodilator;anti-adrenergic (β-receptor).
Definition
ChEBI: 8-(2-phenylethyl)-1-oxa-3,8-diazaspiro[4.5]decan-2-one is an azaspiro compound.
Manufacturing Process
A solution of 192 g of 1-phenethyl-4-hydroxy-4-aminomethyl piperidine in 800
cc of diethylcarbonate is heated for 2 hours to reflux at about 80°C in the
presence of sodium methylate (prepared for immediate use from 2 g of
sodium). After this time, the ethyl alcohol formed during the reaction is slowly
distilled while the maximum temperature is reached. The excess ethyl
carbonate is distilled under reduced pressure. A crystallized residue is then
obtained, which is stirred with 400 cc of water and 400 cc of ether. The
solution is filtered and 125 g (77.6%) of practically pure product melting at
232°C to 233°C, are obtained.
The starting material was prepared in a yield of 58% by reduction of the
corresponding cyanohydrin. It in turn was prepared from 1-(2-phenylethyl)-4-
piperidone and potassium cyanide to give the cyanohydrin which was reduced
by lithium aluminum hydride.
Therapeutic Function
Bronchodilator
Pharmaceutical Applications
Fenspiride is an antagonist of 5-hydroxytryptamine, whose effect on bronchial smooth muscle expansion is between isoproterenol and theophylline. It also has the effect of unobtrusion-free respiratory tract and air resistance elimination in the lungs. It has the effect of antitussive, antipyretic, analgesic and anti-inflammatory, and the antipyretic and analgesic effect is better than aminopyrine and the anti-inflammatory effect is stronger than bute.
fenspiride Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Henan Bao Enluo International TradeCo.，LTD | +86-17331933971 | deasea125996@gmail.com | China | 2472 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21585 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29812 | 58 |
| Casorganics US Corp | +17326109938 | sales@casorganics.com | CHINA | 174 | 58 |
| Hebei Miaobian Biotechnology Co., Ltd | +8617733850068 | CHINA | 967 | 58 | |
| Hubei Ipure Biology Co., Ltd | +8613367258412 | ada@ipurechemical.com | China | 10236 | 58 |
| Career Henan Chemica Co | +86-0371-86658258 +8613203830695 | laboratory@coreychem.com | China | 30224 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| Qiuxian Baitai New Material Co., LTD | +8618330912755 | sale2@hbyalin.com | China | 1658 | 58 |
| RongNa Biotechnology Co.,Ltd | +86-86-13583358881 +8618560316533 | Brad@rongnabiotech.com | China | 3373 | 58 |
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View Lastest Price from fenspiride manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-07-28 | fenspiride
5053-06-5
|
0.99 | RongNa Biotechnology Co.,Ltd | ||||
 |
2026-04-21 | Fenspiride
5053-06-5
|
$1520.00-2500.00 | 10g | TargetMol Chemicals Inc. | |||
 |
2025-11-18 | fenspiride
5053-06-5
|
$1.10 | 1g | 99.0% Min | 100 Tons | Dideu Industries Group Limited |
-
- fenspiride
5053-06-5
- 0.99
- RongNa Biotechnology Co.,Ltd
-
- Fenspiride
5053-06-5
- $1520.00-2500.00
- TargetMol Chemicals Inc.
-
- fenspiride
5053-06-5
- $1.10
- 99.0% Min
- Dideu Industries Group Limited
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