58446-52-9

Basic information

• Product Name: Stearoylbenzoylmethane
• Synonyms: SBM;STEAROYL BENZOYL METHANE;phenylicosane-1,3-dione;-Stearoylacetophenone;FAFAR HS-50;HYDROXY STEARIC ACID BENZOYL METHANE;1,3-Eicosanedione, 1-phenyl-;1-phenyl-3-eicosanedione
• CAS NO: 58446-52-9
• Molecular Formula: C₂₆H₄₂O₂
• Molecular Weight: 386.61
• EINECS: 261-257-4
• Mol File: 58446-52-9.mol
• Article Data: 4

Chemical Properties

• Melting Point: 56°C
• Boiling Point: 493.4 °C at 760 mmHg
• Flash Point: 182.7 °C
• Appearance: white to pale yellow powder
• Density: 0.931 g/cm³
• Vapor Pressure: 7.04E-10mmHg at 25°C
• Refractive Index: 1.488
• Storage Temp.: Sealed in dry,Room Temperature
• PKA: 8.87±0.23(Predicted)
• Water Solubility: methanol＜0.5 dichloromethane260
• CAS DataBase Reference: Stearoylbenzoylmethane(CAS DataBase Reference)
• NIST Chemistry Reference: Stearoylbenzoylmethane(58446-52-9)
• EPA Substance Registry System: Stearoylbenzoylmethane(58446-52-9)

Safety Data

• Hazardous Substances Data: 58446-52-9(Hazardous Substances Data)

Usage

Description

Stearoylbenzoylmethane is a high transmittance, non-toxic, and tasteless compound that, when combined with solid or liquid calcium/zinc, barium/zinc, and other heat stabilizers, can significantly enhance the initial coloring, transparency, and long-term stability of PVC. It is characterized by its synergistic effect with zinc soap, effectively inhibiting "zinc burn" and promoting the use of calcium/zinc composite stabilizers in hard, non-toxic, and odorless applications.

Uses

Used in Non-toxic Transparent PVC Products:
Stearoylbenzoylmethane is used as a heat stabilizer and synergist for improving the initial coloring performance, transparency, and long-term stability of PVC in non-toxic and transparent applications.
Used in Medical Industry:
Stearoylbenzoylmethane is used as a stabilizer in the production of non-toxic transparent PVC products for medical applications, such as PVC bottles, sheets, and transparent films.
Used in Food Packaging Industry:
Stearoylbenzoylmethane is used as a stabilizer in the production of non-toxic transparent PVC products for food packaging, ensuring the safety and quality of the packaging materials.

storage

Stearoylbenzoylmethane can store in a cool dry place, to prevent moisture, heat. Do not damage the packaging when handling.

InChI:InChI=1/C26H42O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-19-22-25(27)23-26(28)24-20-17-16-18-21-24/h16-18,20-21H,2-15,19,22-23H2,1H3

Upstream product

• 111-61-5 stearic acid ethyl ester 
• 98-86-2 acetophenone 
• 112-61-8 Methyl stearate 
• 14593-46-5 sodium tert-pentoxide 
• 91-01-0 1,1-Diphenylmethanol 

Relevant articles and documents

METHOD FOR SYNTHESIZING BETA-DICARBONYL COMPOUNDS

A method for synthesizing beta-dicarbonyl compounds, particularly beta-diketones, from at least two carbonyl compounds, such as esters and ketones, in the presence of a strong base or a mixture of strong bases by Claisen condensation with a titer of greater than 95%. The method includes providing a synthesis reactor on which a separation column, provided with a condenser and with at least one microwave generator, is mounted; feeding a first carbonyl compound and the strong base into the synthesis reactor; heating the reactor and starting up the condenser; starting up the microwave generator(s); when the mixture is brought to a boil at total flux, feeding the second carbonyl compound into the reactor; and after a waiting time, stopping the reactor and acidifying and washing the reaction mixture.)

Process for the preparation of aromatic beta-diketones

A process is disclosed for the preparation of aromatic beta-diketones by the reaction of an acetophenone and a molar excess of an aliphatic ester or an ester of benzoic acid in the presence of sodium alkoxide condensation agent in an aromatic hydrocarbon solvent at a temperature in the range 120-170oC. The solvent and excess ester reactant may be recycled after separation of the aromatic beta-diketone product.