4-Methoxyphenol Cas 150-76-5
Product Description
Product Name: 4-Methoxyphenol
Synonyms: MEHQ
CAS No. 150-76-5
M.F.: C7H8O2
M.W.: 124.14
EINECS: 205-769-8
Specifications
Items | Specifications | Results |
Appearance | White crystals | White crystals |
The content of Hydroquinone % | ≤0.05 | 0.02 |
Residue On Ignition % | ≤0.01 | 0.005 |
Loss On Drying % | ≤0.3 | 0.06 |
Melting Point | 54-56.5 | 56.3 |
Heavy Metals(Pb)% | ≤0.001 | 0.0001 |
Chromaticity(APHA) | ≤10 | <10 |
1.4-Dimethoxybenzene | Not detected | Not detected |
Assay | ≥99.50% | 99.82% |
Conclusion | The product conforms to the above specifications. |
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4-Methoxyphenol: Definition and Overview
4-Methoxyphenol (also known as MEHQ, *p*-methoxyphenol, or hydroquinone monomethyl ether) is an organic compound with the formula CH₃OC₆H₄OH. It is a phenol derivative, specifically the methyl ether of hydroquinone.
It appears as white to light-beige crystals or flakes and is primarily known for its role as a polymerization inhibitor and antioxidant.
Key Uses and Applications
1. Primary Industrial Use: Polymerization Inhibitor
This is its most significant application. It is added in small quantities (typically 10–1000 ppm) to monomers to prevent their unwanted spontaneous polymerization during storage, transport, and processing.
Vinyl Monomers: Essential for stabilizing acrylic acid, methacrylic acid, styrene, and vinyl acetate.
Acrylate Monomers: Used in paints, adhesives, and coatings.
Polymer Production: Ensures monomers remain stable until intentionally polymerized.
2. Antioxidant and Stabilizer
Cosmetics and Skincare: Used at low concentrations as an antioxidant to prevent the oxidation (rancidity) of oils and fats in products like creams and lotions.
Food and Fragrances: Sometimes used as a preservative to extend shelf life (subject to strict regulatory limits).
Pharmaceuticals: Acts as a stabilizer in certain drug formulations to prevent degradation.
3. Chemical Intermediate
Serves as a building block in the synthesis of more complex chemicals, including:
4. Photographic Developer
Historically and in some specialized processes, it has been used as a developing agent in photography.
Safety and Regulatory Status
Toxicity: Can be harmful if swallowed, inhaled, or absorbed through the skin. It is a skin and eye irritant.
Regulation: In cosmetics (e.g., within the EU), its maximum authorized concentration is 0.001% in leave-on skin products. Its use is strictly controlled.
Handling: Requires proper ventilation, protective gloves, and eye/face protection in industrial settings.
Summary
In essence, 4-Methoxyphenol (MEHQ) is a vital industrial stabilizer that prevents premature polymerization in monomer production. Its secondary roles are as an antioxidant in cosmetics and a chemical intermediate. Due to its toxicity, its use in consumer products is highly regulated and minimized.
Packing & Shipping
FAQ
1. Do you have stock?
As we know, most customers prefer stock, so we will try to keep stock for some products.
2. Could you please provide some samples?
In order to facilitate transaction, it's my pleasure to provide you samples.
3. How should I pay?
We accept various payment terms such as L/C,T/T, Western Union and Money Gram.
4. Is there a discount?
Different quantity has different discount.
5.What's your MOQ?
Different products have different MOQ, such as:
1).Peptide products, the MOQ is 1 gram level
2).Liquid products, the MOQ is usually 50-100ML
3).API, the MOQ is 1KG
4).Intermediate products and conventional product, the MOQ is 1KG; custom-tailored products, the MOQ depends on the production process.
5).Food additives and vitamin, the MOQ is usually one package: such as Vitamin C is 25KG / drum, Vitamin E oil or Vitamin A oil is 5KG/bag;Vitamin E powder or Vitamin A powder is 20KG / cartons.
6).Agrochemical , the MOQ is 1KG, except preparations.
6.How do we take the quality complaint ?
First of all, our quality control will reduce the quality issue to near zero. If there is a quality problem caused by us, we will send you free goods for replacement or compensate your loss.
Company Information
Company profile
Wuhan Fortuna Chemical Co.,Ltd established in 2006, is a big integrative chemical enterprise being engaged in Pharmaceutical & its intermediates, Food/Feed additives, Fine chemicals in distributing the products of our own company and affiliated enterprises, are the members of Hubei E-commerce Chamber.
Our company has professional persons who major in chemical R&D and sicentific management, supply fine chemical products with high quality and close service, also supply custom-tailored products according to our clients’ requirement.
We have a positive and self-motivated management work team with a common philosophy, caring and commitment through teamwork, our team strive to achieve success in delighting our clients and ourselves.
Since Wuhan Fortuna Chemical Co., Ltd founded, we continuously innovate our products and improve our service, sales network. Hence, we initiate the first sale mode on net in China, which is the retail trade of small package bring along wholesale of diversified management modes. Our products are exported widely to South Korea, Vietnam, Australia, Europe and South America, highly recommended by our clients.
We insist on the management creed “Market is our compass, Quality is our life, Credit is our soul”. Clients’ trust is our forward powder, their satisfaction is our struggling goal.
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