3,5-HEPTANEDIONE
- Product Name
- 3,5-HEPTANEDIONE
- CAS No.
- 7424-54-6
- Chemical Name
- 3,5-HEPTANEDIONE
- Synonyms
- heptane-3,5-dione;AKOS MSC-0375;(CH3CH2CO)2CH2;3,5-heptandione;3,5-HEPTANEDIONE;Dipropionylmethane;3,5-Heptanedione>3,5-Heptanedione 97%;3,5-Heptanedione 5GR;3,5-Heptanedione 25GR
- CBNumber
- CB7724031
- Molecular Formula
- C7H12O2
- Formula Weight
- 128.17
- MOL File
- 7424-54-6.mol
3,5-HEPTANEDIONE Property
- Melting point:
- 26.25°C (estimate)
- Boiling point:
- 175-177 °C/754 mmHg (lit.)
- Density
- 0.946 g/mL at 25 °C (lit.)
- refractive index
- n20/D 1.456(lit.)
- Flash point:
- 135 °F
- storage temp.
- Inert atmosphere,Room Temperature
- form
- Liquid
- pka
- 9.63±0.10(Predicted)
- color
- Clear colorless to yellow
- BRN
- 635979
- CAS DataBase Reference
- 7424-54-6(CAS DataBase Reference)
- EPA Substance Registry System
- 3,5-Heptanedione (7424-54-6)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H226Flammable liquid and vapour
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P233Keep container tightly closed.
P240Ground/bond container and receiving equipment.
P241Use explosion-proof electrical/ventilating/lighting/…/equipment.
P242Use only non-sparking tools.
P243Take precautionary measures against static discharge.
N-Bromosuccinimide Price
- Product number
- 280070
- Product name
- 3,5-Heptanedione
- Purity
- 97%
- Packaging
- 5G
- Price
- $97.2
- Updated
- 2025/07/31
- Product number
- 280070
- Product name
- 3,5-Heptanedione
- Purity
- 97%
- Packaging
- 25g
- Price
- $236
- Updated
- 2025/07/31
- Product number
- H1395
- Product name
- 3,5-Heptanedione
- Purity
- >97.0%(GC)
- Packaging
- 5g
- Price
- $72
- Updated
- 2025/07/31
- Product number
- H1395
- Product name
- 3,5-Heptanedione
- Purity
- >97.0%(GC)
- Packaging
- 25g
- Price
- $217
- Updated
- 2025/07/31
- Product number
- H998543
- Product name
- Heptane-3,5-dione
- Packaging
- 2.5g
- Price
- $75
- Updated
- 2021/12/16
3,5-HEPTANEDIONE Chemical Properties,Usage,Production
Chemical Properties
Clear colorless liquid
Uses
Enantioselective conjugate addition of 1,3-dicarbonyls to nitroolefins via nickel (II)-diamine catalysis.1
Uses
3,5-Heptanedione has been used in:
- preparation of 3,5-diethylpyrazole hydrochloride
- enantioselective conjugate addition of 1,3-dicarbonyls to nitroolefins via nickel(II)-diamine catalysis
Synthesis
105-37-3
78-93-3
7424-54-6
Suspend 60 g of NaH (50% dispersed in mineral oil) in 200 mL of anhydrous benzene, heat to reflux and stir for 30 minutes. After cooling to 60°C, 2 mL of ethanol was slowly added dropwise. The reaction was continued for 2 hours after the dropwise addition was completed. Subsequently, a mixture of 2.5 mol of ethyl propionate and 1.0 mol of 2-butanone was added slowly dropwise to the reaction flask. After completion of the reaction, it was cooled to room temperature, 200 mL of water was added dropwise under nitrogen protection and the pH was adjusted to 7.0 with dilute hydrochloric acid. after standing and layering, the organic layer was separated and treated by adding 50 mL of acetic acid to it. The solvent was recovered by distillation under reduced pressure to obtain the crude 3,5-heptanedione. The crude product was dissolved in 200 mL of ethanol and a solution prepared from 55 g of copper chloride dissolved in 300 g of water was added to form a 3,5-heptanedione copper salt chelate. The blue chelate was collected by filtration, dissolved in 1000 mL of 20% sulfuric acid solution, and extracted three times with 500 mL of dichloromethane. The organic layers were combined, dried with anhydrous sodium sulfate, and the methylene chloride was recovered by distillation under reduced pressure to give a final 65.3 g of 3,5-heptanedione (boiling point: 174-175°C) with a purity of 97.3% (as determined by gas chromatography), and a yield of 49.6% as 2-butanedione.
References
[1] Patent: CN106810427, 2017, A. Location in patent: Paragraph 0019; 0020; 0021; 0022; 0023; 0024
[2] Patent: CN107867985, 2018, A. Location in patent: Paragraph 0019; 0020
[3] Journal of the American Chemical Society, 1950, vol. 72, p. 1352,1353, 1356
[4] Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1972, p. 2623 - 2630
3,5-HEPTANEDIONE Preparation Products And Raw materials
Raw materials
Preparation Products
3,5-HEPTANEDIONE Suppliers
- Tel
- --
- Fax
- --
- mduris@georganics.sk
- Country
- Slovakia
- ProdList
- 246
- Advantage
- 58
- Tel
- --
- Fax
- --
- chemcontrol@nextra.sk
- Country
- Slovakia
- ProdList
- 6700
- Advantage
- 60
View Lastest Price from 3,5-HEPTANEDIONE manufacturers
- Product
- 3,5-HEPTANEDIONE 7424-54-6
- Price
- US $0.00-0.00/KG
- Min. Order
- 1KG
- Purity
- 98.0%
- Supply Ability
- 10000KGS
- Release date
- 2025-05-12
- Product
- 3,5-HEPTANEDIONE 7424-54-6
- Price
- US $0.00-0.00/kg
- Min. Order
- 1kg
- Purity
- 98%
- Supply Ability
- 1Ton
- Release date
- 2022-10-17
- Product
- 3,5-HEPTANEDIONE 7424-54-6
- Price
- US $1.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- Customized
- Release date
- 2018-12-22