2,2',6,6'-Tetra-tert-butyl-4,4'-biphenol

Modify Date: 2025-08-25 10:05:14

2,2',6,6'-Tetra-tert-butyl-4,4'-biphenol Structure
2,2',6,6'-Tetra-tert-butyl-4,4'-biphenol structure
Common Name 2,2',6,6'-Tetra-tert-butyl-4,4'-biphenol
CAS Number 128-38-1 Molecular Weight 410.63200
Density 0.981g/cm3 Boiling Point 460.4ºC at 760 mmHg
Molecular Formula C28H42O2 Melting Point 185ºC
MSDS N/A Flash Point 182ºC

 Names

Name 2,6-ditert-butyl-4-(3,5-ditert-butyl-4-hydroxyphenyl)phenol
Synonym More Synonyms

 Chemical & Physical Properties

Density 0.981g/cm3
Boiling Point 460.4ºC at 760 mmHg
Melting Point 185ºC
Molecular Formula C28H42O2
Molecular Weight 410.63200
Flash Point 182ºC
Exact Mass 410.31800
PSA 40.46000
LogP 7.95480
Vapour Pressure 4.27E-09mmHg at 25°C
Index of Refraction 1.524

 MSDS

Name: 3 3 5 5 -Tetra(tert-butyl)[1 1 -biphenyl] -4 4 -diol 97% Material Safety Data Sheet
Synonym:
CAS: 128-38-1
Section 1 - Chemical Product MSDS Name:3 3 5 5 -Tetra(tert-butyl)[1 1 -biphenyl] -4 4 -diol 97% Material Safety Data Sheet
Synonym:

Section 2 - COMPOSITION, INFORMATION ON INGREDIENTS
CAS# Chemical Name content EINECS#
128-38-1 3,3',5,5'-Tetra(tert-butyl)[1,1'-biphe 97% 204-883-5
Hazard Symbols: XI
Risk Phrases: 36/37/38

Section 3 - HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW
Irritating to eyes, respiratory system and skin.
Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. May be harmful if absorbed through the skin.
Ingestion:
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation:
Causes respiratory tract irritation. May be harmful if inhaled.
Chronic:
Not available.

Section 4 - FIRST AID MEASURES
Eyes: Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.

Section 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

Section 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Vacuum or sweep up material and place into a suitable disposal container.

Section 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

Section 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low.
Exposure Limits CAS# 128-38-1: Personal Protective Equipment Eyes: Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

Section 9 - PHYSICAL AND CHEMICAL PROPERTIES

Physical State: Solid
Color: yellow - brown
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: Not available.
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C28H42O2
Molecular Weight: 411

Section 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Strong oxidizing agents, acid chlorides.
Hazardous Decomposition Products:
Carbon monoxide, carbon dioxide, acrid smoke and fumes.
Hazardous Polymerization: Not available.

Section 11 - TOXICOLOGICAL INFORMATION
RTECS#:
CAS# 128-38-1 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
3,3',5,5'-Tetra(tert-butyl)[1,1'-biphenyl] -4,4'-diol - Not listed by ACGIH, IARC, or NTP.

Section 12 - ECOLOGICAL INFORMATION


Section 13 - DISPOSAL CONSIDERATIONS
Dispose of in a manner consistent with federal, state, and local regulations.

Section 14 - TRANSPORT INFORMATION

IATA
No information available.
IMO
No information available.
RID/ADR
No information available.

Section 15 - REGULATORY INFORMATION

European/International Regulations
European Labeling in Accordance with EC Directives
Hazard Symbols: XI
Risk Phrases:
R 36/37/38 Irritating to eyes, respiratory system
and skin.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately
with plenty of water and seek medical advice.
S 37/39 Wear suitable gloves and eye/face
protection.
WGK (Water Danger/Protection)
CAS# 128-38-1: No information available.
Canada
None of the chemicals in this product are listed on the DSL/NDSL list.
CAS# 128-38-1 is not listed on Canada's Ingredient Disclosure List.
US FEDERAL
TSCA
CAS# 128-38-1 is not listed on the TSCA inventory.
It is for research and development use only.


SECTION 16 - ADDITIONAL INFORMATION
N/A

 Safety Information

Hazard Codes Xi
Risk Phrases R36/37/38
Safety Phrases S24/25
HS Code 2907299090

 Synthetic Route

 Customs

HS Code 2907299090
Summary 2907299090 polyphenols; phenol-alcohols。supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward)。VAT:17.0%。tax rebate rate:9.0%。MFN tariff:5.5%。general tariff:30.0%

 Synonyms

2,2',6,6'-tetra-tert-butyl-p,p'-biphenol
EINECS 204-883-5
3,3',5,5'-Tetra-tert-butylbiphenyl-4,4'-diol
3,3',5,5'-tetra-t-butyl-4,4'-dihydroxybiphenyl
2,2',6,6'-tetra-tert-butyl-4,4'-biphenol
Ethyl 712
4,3,3',5,5'-tetra-tert-butyl
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