| Identification | More | [Name]
4-tert-Butylcatechol | [CAS]
98-29-3 | [Synonyms]
4-(1,1-DIMETHYLETHYL)-1,2-BENZENEDIOL
4-T-BUTYLPYROCATECHOL
4-TERT-BUTYL-1,2-BENZENEDIOL
4-TERT-BUTYL-1,2-DIHYDROXYBENZENE
4-TERT-BUTYLCATECHOL
4-TERT-BUTYLPYROCATECHOL
PTBC
P-T-BUTYLCATECHOL
P-TERT-BUTYL CATECHOL
TBC
T-BUTYL CATECHOL
TERT-BUTYL CATECHOL
1,2-Benzenediol, 4-(1,1-dimethylethyl-) 1,2-benzenediol
1,2-Benzenediol,4-(1,1-dimethylethyl)-
1,2-Dihydroxy-4-tert-butylbenzene
2-Benzenediol,4-(1,1-dimethylethyl)-1
2-dihydroxybenene
4-(1,1-dimethylethyl)-2-benzenediol
4-tbc
4-t-Butyl-1,2-benzenediol | [EINECS(EC#)]
202-653-9 | [Molecular Formula]
C10H14O2 | [MDL Number]
MFCD00002201 | [Molecular Weight]
166.22 | [MOL File]
98-29-3.mol |
| Chemical Properties | Back Directory | [Appearance]
white to cream flakes | [Melting point ]
52-55 °C(lit.)
| [Boiling point ]
285 °C(lit.)
| [density ]
1.049
| [vapor pressure ]
<1 hPa (25 °C) | [refractive index ]
n20/D 1.508
| [Fp ]
>230 °F
| [storage temp. ]
Store below +30°C. | [solubility ]
methanol: soluble1g/10 mL, clear, colorless to slightly yellow | [form ]
powder to lump | [pka]
9.92±0.10(Predicted) | [color ]
White to Light yellow to Light red | [Odor]
at 10.00?%?in?dipropylene glycol. phenolic | [Water Solubility ]
0.2 g/100 mL (25 ºC) | [Sensitive ]
Hygroscopic | [BRN ]
2043335 | [Exposure limits]
ACGIH: TWA 5 ppm (Skin)
NIOSH: TWA 5 ppm(20 mg/m3) | [Contact allergens]
p-tert-Butyl catechol is specially prepared by reacting
the impure catechol fraction with tertiary butyl alcohol.
It is used for its various properties (inhibitor of
polymerization and antioxidizing agent) in the manufacture
of rubber, plastics, and paints, in the preparation
of petrolatum products, and as an antioxidant in
oils. It may induce vitiligo. | [InChIKey]
XESZUVZBAMCAEJ-UHFFFAOYSA-N | [LogP]
1.98 at 25℃ | [Uses]
Polymerization inhibitor for styrene-butadiene
and other olefins.
| [CAS DataBase Reference]
98-29-3(CAS DataBase Reference) | [NIST Chemistry Reference]
1,2-Benzenediol, 4-(1,1-dimethylethyl)-(98-29-3) | [EPA Substance Registry System]
98-29-3(EPA Substance) |
| Hazard Information | Back Directory | [Chemical Properties]
white to cream flakes | [Hazard]
Toxic by ingestion and skin absorption.
| [Description]
Para-tertiary butyl catechol is specially prepared by
reacting the impure catechol fraction with tertiary
butyl alcohol. Used for its various properties (inhibition
of polymerization and as an antioxidizing agent)
in the manufacture of rubber, plastics and paints, in
the preparation of petrolatum products, and as an
antioxidant in oils, it may induce vitiligo. | [Application]
Polymerization inhibitor for styrene-butadiene and other olefins.
Inhibitor-remover packings and ready-to-use, disposable prepacked columns offer a quick and convenient means of removing small amounts of inhibitors which are added to reagents or solvents that would otherwise be unstable (e.g., they may polymerize, oxidize or darken) on storage.
The inhibitor removers are useful in applications which require that the stabilizer or inhibitor [i.e., hydroquinone (HQ), hydroquinone monomethyl ether (MEHQ, 4-methoxyphenol) or 4-tert-butylcatechol (TBC)] be removed prior to use. | [General Description]
4-tert-Butylcatechol,in the presence of O2 catalyzed by tyrosinase, yields 4-tert-butyl-o-benzoquinone. Electrochemical oxidation of 4-tert-Butylcatechol in the presence of 4-hydroxycoumarin as nucleophile has been studied using cyclic voltammetry and controlled-potential coulometry. It undergoes electrochemical trimerization via anodic oxidation and mechanism of trimerization has been studied using cyclic voltammetry and controlled-potential coulometry. | [Flammability and Explosibility]
Notclassified | [Purification Methods]
Distil it in a vacuum, then recrystallise it from pentane or pet ether (or *C6H6). [Beilstein |
| Safety Data | Back Directory | [Hazard Codes ]
C,N,T | [Risk Statements ]
R22:Harmful if swallowed.
R34:Causes burns.
R43:May cause sensitization by skin contact.
R21:Harmful in contact with skin.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
R21/22:Harmful in contact with skin and if swallowed .
R39/23/24/25:Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed .
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R10:Flammable. | [Safety Statements ]
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S24:Avoid contact with skin . | [RIDADR ]
UN 2923 8/PG 3
| [WGK Germany ]
2
| [RTECS ]
UX1400000
| [Autoignition Temperature]
160 °C | [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
III | [HS Code ]
29072900 | [Safety Profile]
A poison by
intravenous route. Moderately toxic by
ingestion and skin absorption. A severe skin
and eye irritant. Mutation data reported.
Combustible when exposed to heat or
flame. To fight fire, use Con, dry chemical,
fog, mist. When heated to decomposition it
emits acrid and irritating fumes | [Toxicity]
LD50 orally in Rabbit: 815 mg/kg LD50 dermal Rat 1331 mg/kg |
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