4-Methoxyphenol CAS 150-76-5

4-Methoxyphenol CAS 150-76-5 Information

CAS	150-76-5
Molecular formula	C7H8O2
Molecular weight	124.14
EIENCS	205-769-8
Form	Liquid
Melting point	56 °C
boling point	243 °C(lit.)
Density	1,55 g/cm3
Solubility	Soluble in acetone, ethyl acetate, ethanol, ether, benzene and carbon tetrachloride.
PKA	10.21(at 25℃)
Color	Clear colorless to pale yellow
Storage temp

What is 4-Methoxyphenol CAS 150-76-5?

Chemical labeling

Molecular formula: C₇H₈O₂

Molecular weight: 124.14 g/mol

Alternative names: p-hydroxyanisole, hydroquinone monomethyl ether, MEHQ

Appearance: White flaky or waxy crystals with a slight phenolic or caramel flavor.

Stability

Stable at room temperature, but flammable 🔥; Incompatible substances include strong oxidants, bases, acyl chlorides, and acid anhydrides, which may trigger reactions.

4-Methoxyphenol CAS 150-76-5 Use

Polymer industry

Polymerization inhibitor: It is used in the polymerization process of alken-based monomers such as acrylate and acrylonitrile, and can directly participate in the polymerization without removal.

Ultraviolet inhibitors: Protect plastics from photodegradation.

Food and Cosmetics

Antioxidant synthesis: The key intermediate is used in the synthesis of BHA (3-tert-butyl-4-hydroxyanisole), which is applied in the preservation of oils and cosmetics.

Fine chemical industry

Pharmaceutical/pesticide intermediates: Synthetic drugs (such as skin fading agents), fragrances and pesticides.

Industrial additives: Textile lubricating oil stabilizers, dye intermediates, concrete additives.

4-Methoxyphenol CAS 150-76-5 safety

Health hazard

Acute toxicity: Oral LD₅₀ in rats = 1600 mg/kg (moderate toxicity).

Stimulating:

Eye contact: May cause conjunctivitis, corneal damage (moderate irritation shown in rabbits) 👁️;

Skin contact: May cause allergy or mild irritation.

Reproductive toxicity: Suspected to be harmful to fertility or fetus (GHS classification: Reproductive Toxicity Category 2).

Environmental risk

Toxic to aquatic organisms (Acute Hazard Category 2), prevention of entry into water bodies is required.

Protection and First Aid

Operation protection: Dust masks, anti-toxic suits and rubber gloves must be worn.

Emergency response:

Skin contact: Rinse immediately with running water for 20 to 30 minutes;

Eye contact: Rinse with normal saline for 10 to 15 minutes and seek medical attention.

Inhalation: Transfer to a place with fresh air and administer oxygen.

Deshangchemical Info

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