4,4′-Butylidene-bis(6-tert-butyl-m-cresol) 4,4′-Butylidenebis(6-tert-butyl-m-cresol)

Structural formula

• Numbering system
• Physical property data
• Toxicological data
• Ecological data
• Molecular structure data
• Computing chemical data
• More
  • Properties and Stability
  • Storage method
  • Synthesis method
  • Purpose

Numbering system

CAS number:85-60-9

MDL number:MFCD00026289

EINECS number:201-618-5

RTECS number:GO7050000

BRN number:None

PubChem ID:None

Physical property data

1. Physical property data

1. Properties: White crystalline powder.

2. Density (g/mL, 25/4℃): Uncertain

3. Relative vapor density (g/mL, air=1): Uncertain Confirm

4. Melting point (ºC): 212ºC

5. Boiling point (ºC, normal pressure): Uncertain

6. Boiling point (ºC, 5.2kPa ): Uncertain

7. Refractive index: Uncertain

8. Flash point (ºC): Uncertain

9. Specific rotation (º) : Uncertain

10. Autoignition point or ignition temperature (ºC): Uncertain

11. Vapor pressure (kPa, 25ºC): Uncertain

12. Saturated vapor pressure (kPa, 60ºC): Uncertain

13. Heat of combustion (KJ/mol): Uncertain

14. Critical temperature (ºC): Uncertain

15. Critical pressure (KPa): Uncertain

16. Log value of oil-water (octanol/water) partition coefficient: Uncertain

17. Explosion Upper limit (%, V/V): Uncertain

18. Lower explosion limit (%, V/V): Uncertain

19. Solubility: Uncertain

Toxicological data

1. Acute toxicity:

Rat caliber LDL0: 17mg/kg;

2. Other multiple dose toxicity:

Rat caliber TDL0: 1824 mg/kg/1W-C;

Ecological data

None yet

Molecular structure data

5. Molecular property data:

1. Molar refractive index: 119.65

2. Molar volume (cm³/mol): 381.8

3. Isotonic specific volume (90.2K): 937.7

4. Surface tension (dyne/cm): 36.3

5. Polarizability (10^-24cm³): 47.43

Compute chemical data

1. Reference value for hydrophobic parameter calculation (XlogP): 8.6

2. Number of hydrogen bond donors: 2

3. Number of hydrogen bond acceptors: 2

4. Number of rotatable chemical bonds: 6

5. Number of tautomers: 45

6. Topological molecular polar surface area 40.5

7. Number of heavy atoms: 28

8. Surface charge: 0

9. Complexity: 444

10. Number of isotope atoms: 0

11. Determine the number of atomic stereocenters: 0

12. Uncertain number of atomic stereocenters: 0

13. Determine the number of chemical bond stereocenters: 0

14. Number of uncertain chemical bond stereocenters: 0

15. Number of covalent bond units: 1

Properties and stability

None yet

Storage method

None yet

Synthesis method

Produced by the condensation of 5-methyl-2-tert-butylphenol and butyraldehyde

Purpose

Used as an anti-aging agent for synthetic rubber and natural rubber, and also used as a copolymer of polyethylene, polypropylene, acrylonitrile, butadiene and styrene, and polyacetal. Heat- and light-resistant stabilizer. It can protect natural rubber and synthetic rubber from thermal oxygen aging, light and ozone aging, so that the color of the rubber will not change under light. For white and colored products, the dosage is 0.56% to 5.0%. It can be mixed with polyamide, dilauryl thiodipropionate, organotin compounds, and phosphites at a dosage of 0.01% to 0.5%.