Butylated Hydroxytoluene CAS#128-37-0

Butylated Hydroxytoluene (BHT) is a synthetic phenolic antioxidant commonly added to foods, cosmetics, and packaging to prevent the oxidation of fats and oils, thereby extending their shelf life. It is also used as a preservative in a variety of products, including rubber, petroleum products, and animal feed. BHT is recognized for its effectiveness in maintaining nutrient levels, color, flavor, and odor in food products . It is known to have a melting point of 69-71°C, a boiling point of 265°C, and is soluble in ethanol, acetone, and benzene, but not in water, glycerin, or propylene glycol . BHT is also used in some dietary supplements due to its antioxidant properties . However, it is important to handle BHT with care, as it can cause skin irritation and is considered harmful if swallowed .

Butylated Hydroxytoluene CAS#128-37-0

Butylated Hydroxytoluene Chemical Properties
Melting point 69-73 °C(lit.)
Boiling point 265 °C(lit.)
density 1.048
vapor density 7.6 (vs air)
vapor pressure <0.01 mm Hg ( 20 °C)
refractive index 1.4859
FEMA 2184 | BUTYLATED HYDROXYTOLUENE
Fp 127 °C
storage temp. 2-8°C
solubility methanol: 0.1 g/mL, clear, colorless
form Crystals
pka pKa 14(H2O t = 25 c = 0.002 to 0.01) (Uncertain)
color white
Odor faint characteristic odor
Odor Type phenolic
Water Solubility insoluble
Merck 14,1548
BRN 1911640
Exposure limits ACGIH: TWA 2 mg/m3
NIOSH: TWA 10 mg/m3
Stability: Stable, but light-sensitive. Incompatible with acid chlorides, acid anhydrides, brass, copper, copper alloys, steel, bases, oxidizing agents. Combustible.
InChIKey NLZUEZXRPGMBCV-UHFFFAOYSA-N
LogP 5.2
CAS DataBase Reference 128-37-0(CAS DataBase Reference)
NIST Chemistry Reference Butylated hydroxytoluene(128-37-0)
IARC 3 (Vol. 40, Sup 7) 1987
EPA Substance Registry System 2,6-Di-tert-butyl-p-cresol (128-37-0)
Safety Information
Hazard Codes Xn,N
Risk Statements 22-36/37/38-36/38-50/53
Safety Statements 26-36-37/39-61-60
RIDADR 3077
OEB B
OEL TWA: 10 mg/m3
WGK Germany 1
RTECS GO7875000
F 8-10-23
Autoignition Temperature 878 °F
TSCA Yes
HazardClass 9
PackingGroup III
HS Code 29071900
Hazardous Substances Data 128-37-0(Hazardous Substances Data)
Toxicity LD50 orally in mice: 1040 mg/kg (McOmie)