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HomeProduct name listTrimethylhydroquinone

Trimethylhydroquinone

Synonym(s):1,4-Dihydroxy-2,3,5-trimethylbenzene;3,6-Dihydroxypseudocumene

  • CAS NO.:700-13-0
  • Empirical Formula: C9H12O2
  • Molecular Weight: 152.19
  • MDL number: MFCD00002346
  • EINECS: 211-838-3
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-10-29 11:48:30
Trimethylhydroquinone Structural

What is Trimethylhydroquinone?

Chemical properties

off-white, tan or orange powder

The Uses of Trimethylhydroquinone

Trimethylhydroquinone is used for synthesizing vitamin E and used as medical intermediate.

The Uses of Trimethylhydroquinone

Trimethylhydroquinone is a key precursor for the synthesis of tocopherols (vitamin E) and (±)-madindolines.

Definition

ChEBI: 2,3,5-trimethylhydroquinone is a member of the class of hydroquinones that is hydroquinone substituted by methyl groups at positions 2, 3 and 5. It is a member of hydroquinones and a methylbenzene.

Synthesis Reference(s)

Chemical and Pharmaceutical Bulletin, 16, p. 378, 1968 DOI: 10.1248/cpb.16.378

Safety Profile

Experimental reproductive effects. When heated to decomposition it emits acrid smoke and irritating fumes.

Purification Methods

Recrystallise the hydroquinone from water, under anaerobic conditions. [Beilstein 6 H 931, 6 IV 5997.]

Properties of Trimethylhydroquinone

Melting point: 169-172 °C (lit.)
Boiling point: 295 °C (759.8513 mmHg)
Density  0.9595 (rough estimate)
vapor pressure  0-0.017Pa at 20-50℃
refractive index  1.4464 (estimate)
Flash point: 191 °C
storage temp.  Inert atmosphere,Room Temperature
solubility  methanol: 0.1 g/mL, clear
form  Crystalline Powder
pka 11.28±0.28(Predicted)
color  Beige
Water Solubility  2 g/L (20 ºC)
BRN  1909183
Stability: Stable. Combustible. Incompatible with strong oxidizing agents.
CAS DataBase Reference 700-13-0(CAS DataBase Reference)
NIST Chemistry Reference Trimethylhydroquinone(700-13-0)
EPA Substance Registry System 1,4-Benzenediol, 2,3,5-trimethyl- (700-13-0)

Safety information for Trimethylhydroquinone

Signal word Danger
Pictogram(s)
ghs
Corrosion
Corrosives
GHS05
ghs
Exclamation Mark
Irritant
GHS07
ghs
Environment
GHS09
GHS Hazard Statements H315:Skin corrosion/irritation
H317:Sensitisation, Skin
H318:Serious eye damage/eye irritation
H332:Acute toxicity,inhalation
H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
H410:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P261:Avoid breathing dust/fume/gas/mist/vapours/spray.
P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
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. Continuerinsing.

Computed Descriptors for Trimethylhydroquinone

InChIKey AUFZRCJENRSRLY-UHFFFAOYSA-N

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