4-tert-BUTYLCATECHOL

PRODUCT IDENTIFICATION
CAS NO.

98-29-3

4-Tert-BUTLYCATECHOL
EINECS NO. 202-653-9
FORMULA (CH3)3CC6H3(OH)2
MOL WT.

166.22
H.S. CODE 2907.29.9000
TOXICITY Oral rat LD50: 2820 mg/kg
SYNONYMS p-tert-Butylpyrocatechol; 1,2-Dihydroxy-4-tert-butylbenzene;
4-tert-Butylpyrocatechol; p-tert-Butylcatechol; 4-tert-Butyl-1,2-benzenediol; 4-tert-Butyl-1,2-dihydroxybenzene; 4-tert-Butylcatechin; 4-tert-Butylcatechol; 4-tert-Butylpyrocatechol; 4-(1,1-Dimethylethyl-)-1,2-benzenediol; t-Butyl catechol; 4-t-Butylcatechol; p-t-Butylpyrocatechol; 4-t-Butylpyrocatechol; 4-tert-Butylpyrokatechin; 4-t-Butyl-1,2-benzenediol;

SMILES

 C(c1cc(c(O)cc1)O)(C)(C)C

CLASSIFICATION

 Antioxidant, Catechol

EXTRA NOTES

 

PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE white solid, phenol like odor
MELTING POINT 50 - 52 C
BOILING POINT 283 - 285 C
DENSITY

1.05 - 1.07
SOLUBILITY IN WATER 60g/100g
SOLVENT SOLUBILITY 500g/100g in methanol
AUTOIGNITION

 
pH  
VAPOR DENSITY  
NFPA RATINGS Health: 2; Flammability: 1; Reactivity: 0

REFRACTIVE INDEX

 
FLASH POINT

91 C
STABILITY  

EXTERNAL LINKS & GENERAL DESCRIPTION

Wikipedia Linking

Material Safety Data Sheet

Google Scholar Search

PubChem Compound Summary - 4-tert-ButylCatechol

Local:
TBC (4-tert-ButylCatechol) is usually added as a stabilizer and an inhibitor of polymerization to butadiene, styrene and other reactive monomer streams. It is 25 times higher than hydroquinone at 60 deg C for polymerization inhibitory effect. It is used as a polymerization inhibitor in processing Styrene, Butadiene, and Vinyl Acetate monomers, Polyester resins. Also used as a stabilizer in the manufacture of polyurethane foam. Because of the sterically hindered group, tert-butylphenolic compounds have an antioxidizing action and also act as UV stabilisers. It also can be used as antioxidants for synthetic rubber, polymers and oil derivatives, it can be used as purification agent for aminoformate catalysts. TBC is available in a form of a solid crystal and 85% solution in methanol or water.

GENERAL DESCRIPTION OF DIHYDROXYBENZENE: There are three isomeric compounds of dihydroxybenzene molecule structure, which all have traditional names respectively. The ortho (1,2) isomer is called catechol (Also known as catechin; pyrocatechol; pyrocatechuic acid), which forms clear crystals used as a photographic developer in solution and as a starting material to produce synthetic catecholamines which have important physiological effects as neurotransmitters and hormonesany (such as epinephrine,  adrenaline, norepinephrine, and dopamine). The meta (1,3) isomer is resorcinol (also known as resorcin), which forms clear needle crystals used in the production of diazo dyes and plasticizers. It is produced by sulfonating benzene with fuming sulfuric acid and fusing the resulting benzenedisulfonic acid with caustic soda. Resorcinol is used in resins as an UV absorber. It is used in manufacturing fluorescent and leather dyes and adhesives. Reaction with formaldehyde produces resins (resorcinol formaldehyde resins) used to make rayon and nylon. It is used as a pharmaceutical to treat acne and other greasy skin conditions in combination with other acne treatments such as sulfur. It is used as an anti-dandruff agent in shampoo and sunscreen cosmetics. It is also used as a chemical intermediate to synthesis pharmaceuticals and other organic compounds. The para (1,4) isomer is hydroquinone (also known as quinol), which forms clear prisms used as a photographic reducer and developer (except in color film). It is formed in large quantities by chemical reduction of benzoquinone. This compound is a general-purpose inhibitor, stabilizer, antioxidant, and intermediate. One of the major uses for hydroquinone is an intermediate to make other inhibitors, stabilizers, antioxidants, agricultural chemicals, and dyes.

SALES SPECIFICATION

SOLID

APPEARANCE

 White Solid Turning Light Brown

PURITY

98.5% min

WATER

0.2% max
SPECIFIC GRAVITY

1.05 - 1.07
BOILING POINT 283 - 285 C
MELTING POINT 50 - 52 C

85% IN WATER

APPEARANCE

clear to yellow liquid

PURITY

85.0% min

WATER

Balance
SPECIFIC GRAVITY

1.06 - 1.07

REFRACTIVE INDEX

1.504 - 1.514

85% IN METHANOL

PURITY

85.0% min

METHANOL

Balance
SPECIFIC GRAVITY

1.029 - 1.031
MELTING POINT

10 - 12 C
TRANSPORTATION
PACKING 25kgs in bag , 200kgs in drum
HAZARD CLASS 6.1 (Packing Group: III)
UN NO. 2811
SAFETY INFORMATION

HAZARD OVERVIEW

May cause allergic skin reaction. Harmful if absorbed through the skin. Hygroscopic (absorbs moisture from the air). Causes burns by all exposure routes. Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. Target Organs: Central nervous system, respiratory system, gastrointestinal system, eyes, skin.

GHS

 
SIGNAL WORD Danger

PICTOGRAMS

HAZARD STATEMENTS

H312:  Harmful in contact with skin
H314:  Causes severe skin burns and eye damage
H317:  May cause an allergic skin reaction
H318:  Causes serious eye damage
H411:  Toxic to aquatic life with long lasting effects

PRECAUTIONARY STATEMENTS

P273:  Avoid release to the environment
P280:  Wear eye protection/face protection
P280:  Wear protective gloves/protective clothing/eye protection/face protection
P301 + P330 + P331:  IF SWALLOWED: rinse mouth. Do NOT induce vomiting
P302 + P352:  IF ON SKIN: Wash with plenty of soap and water
P305 + P351 + P338:  IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing
P310:  Immediately call a POISON CENTER or doctor/physician

EC DIRECTIVES

 
HAZARD CODES

C CorrosiveN Dangerous for the environment

RISK PHRASES

21:  Harmful in contact with skin.
34:  Causes burns.
43:  May cause sensitisation by skin contact.
51/53:  Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.

SAFETY PHRASES

26:  In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
36/37/39:  Wear suitable protective clothing, gloves and eye/face protection.
45:  In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
61:  Avoid release to the environment. Refer to special instructions / safety data sheets




PRICE INFORMATION