2,4-Di-tert-butylphenol
[CAS# 96-76-4]

Identification

• Classification: Pharmaceutical intermediate >> Heterocyclic compound intermediate >> Pyridazine
• Name: 2,4-Di-tert-butylphenol
• Synonyms: 2,4-Bis(1,1-dimethylethyl)phenol; 2,4-DTBP; 1-Hydroxy-2,4-di-tert-butylbenzene; Antioxidant No. 33
• Molecular Formula: C₁₄H₂₂O
• Molecular Weight: 206.33
• CAS Registry Number: 96-76-4
• EC Number: 202-532-0

Properties

• Melting point: 54-59 ºC
• Boiling point: 264 ºC
• Flash point: 115 ºC
• Water solubility: practically insoluble

Safety Data

• Hazard Symbols: Xn;N
• Risk Codes: R22;R36/38;R43;R50/53
• Safety Description: S24;S26;S29;S37/39;S61

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Chronic hazardous to the aquatic environment	Aquatic Chronic	1	H410
Acute hazardous to the aquatic environment	Aquatic Acute	1	H400
Serious eye damage	Eye Dam.	1	H318
Eye irritation	Eye Irrit.	2	H319
Acute toxicity	Acute Tox.	4	H302
Specific target organ toxicity - single exposure	STOT SE	3	H335
Specific target organ toxicity - repeated exposure	STOT RE	2	H373
Chronic hazardous to the aquatic environment	Aquatic Chronic	2	H411
Specific target organ toxicity - single exposure	STOT SE	2	H371

• Transport Information: UN 2430