- Product Details
- {{item.text}}
Quick Details
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MF:
-
C7H8O2
-
EINECS No.:
-
205-769-8
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Place of Origin:
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Shaanxi, China
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Appearance:
-
White Powder
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Brand Name:
-
Reain
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Model Number:
-
RI2105
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Product name:
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Mequinol Powder, 4-Methoxyphenol
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Apperance:
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white crystal powder/ white flake
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Specification:
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99%
-
MOQ:
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100g
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Function:
-
Skin whitening
-
Application:
-
Cosmetic Raw Materials
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Soluble:
-
Soluble in ethanol, acetone, ether, benzene,,ethyl acetate
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Sample:
-
Availiable
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Shelf life:
-
2 Years Proper Storage
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Storage:
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Cool Dry Place
Quick Details
-
CAS No.:
-
150-76-5
-
Purity:
-
99%
-
Other Names:
-
Mequinol Powder
-
MF:
-
C7H8O2
-
EINECS No.:
-
205-769-8
-
Place of Origin:
-
Shaanxi, China
-
Appearance:
-
White Powder
-
Brand Name:
-
Reain
-
Model Number:
-
RI2105
-
Product name:
-
Mequinol Powder, 4-Methoxyphenol
-
Apperance:
-
white crystal powder/ white flake
-
Specification:
-
99%
-
MOQ:
-
100g
-
Function:
-
Skin whitening
-
Application:
-
Cosmetic Raw Materials
-
Soluble:
-
Soluble in ethanol, acetone, ether, benzene,,ethyl acetate
-
Sample:
-
Availiable
-
Shelf life:
-
2 Years Proper Storage
-
Storage:
-
Cool Dry Place
Product Description
Hydroquinone Monomethyl Ether Powder Mequinol Powder MEHQ Powder For Skin Whitening
It can be prepared by using hydroquinone as raw material, dimethyl sulfate as methylating agent, or methanol as methylating agent under high temperature and pressure and catalysis 4-methoxyphenol. Another newer method is the reaction of hydroquinone with methanol in the presence of p-benzoquinone. Mix methanol with concentrated sulfuric acid The mixture is homogeneous, hydroquinone is added, and the mixture is heated to reflux, and a methanol solution of p-benzoquinone is added dropwise to react for 3 hours. Cool and neutralize with 40% sodium hydroxide solution,The sodium sulfate precipitate was filtered off.
After the methanol was recovered from the filtrate, the mixture was extracted with ether, and the ether was distilled off from the extract, followed by distillation under reduced pressure.The finished product was obtained at a distillate of 112 ° C (0.53kPa). The yield was 76%.
Details
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Product Name
|
Hydroquinone Monomethyl Ether Powder Mequinol Powder MEHQ Powder For Skin Whitening
|
|
Specification
|
99%
|
|
CAS No
|
150-76-5
|
|
Molecular Formula
|
C7H8O2
|
|
Molecular Weight
|
124.137
|
|
EINECS No
|
205-769-8
|
|
Other Name
|
4-Methoxyphenol; MEHQ; Hydroquinone monomethyl ether; p-Hydroxyanisole
|
|
Appearance
|
White flake or crystals
|
|
Stroge
|
Cool and dry place
|
Function
1. Used as a polymerization inhibitor, ultraviolet inhibitor, dye intermediate for vinyl-based plastic monomers and as an
antioxidant for the synthesis of edible oils and cosmetics agent BHA (3-tert-butyl-4-hydroxyanisole) and so on.
2. It is an important intermediate for fine chemical products such as medicine, spices, pesticides, etc., and has a wide range of uses. Mainly used in the production of acrylonitrile, acrylic acid and Its ester, methacrylic acid and its alkenyl monomers are polymerization inhibitors. Its biggest advantage is that it does not need to remove p-hydroxyanisole during use, it can directly participate in the aggregation. It is also used in the synthesis of antioxidants, plasticizers and food additives (BHA).
Application
Food and feed antioxidants, cosmetic additives, etc.
OEM Service
Certificate of Analysis
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Item
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Specification
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|
Result
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|
||
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Appearance
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White Flake
|
|
Conform
|
|
||
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Assay
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≥98%
|
|
99%
|
|
||
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Odor and taste
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Characteristic
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|
Conform
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|
||
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Mesh Size
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100% pass 80 mesh
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Conform
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|
||
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Heavy Metals(as pb),%
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≤20ppm
|
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10ppm
|
|
||
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Loss on Drying,%
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≤0.05%
|
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0.036%
|
|
||
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Melting point
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117-122℃
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Conform
|
|
||
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Total Plate Count
|
＜1000cfu/g
|
|
800cfu/g
|
|
||
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Yeast and Mold
|
＜100cfu/g
|
|
70cfu/g
|
|
||
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E.Coli
|
Negative
|
|
Conform
|
|
||
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S.Aureus
|
Negative
|
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Conform
|
|
||
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Salmonella
|
Negative
|
|
Negative
|
|
||
Packing & Delivery
Payment Methods
Company Introduction
Quality Assurance:
In order to guarantee the high quality of products, we has strict quality control standards. Safety and effective
active ingredients in plants are reserved from the collection of starting material, griding and extraction to finished products.
Proven quality management system ensures strict compliance with the requirements at each procedure.
Quality Control:
We has strong professtional research and development team, talented personnel and completely equipped laboratory.
Quality is strictly controlled by corresponding standard in each procedure from selection of materials to product delivery.
Professional test equipments like HPLC/GC/UV are used and full-time quality control personnel are deployed. Inspection data like ingredient, moisture and dust content and heavy metal residual, and solvents are documented completely and in detail.
In order to guarantee the high quality of products, we has strict quality control standards. Safety and effective
active ingredients in plants are reserved from the collection of starting material, griding and extraction to finished products.
Proven quality management system ensures strict compliance with the requirements at each procedure.
Quality Control:
We has strong professtional research and development team, talented personnel and completely equipped laboratory.
Quality is strictly controlled by corresponding standard in each procedure from selection of materials to product delivery.
Professional test equipments like HPLC/GC/UV are used and full-time quality control personnel are deployed. Inspection data like ingredient, moisture and dust content and heavy metal residual, and solvents are documented completely and in detail.
Certification：
FAQ
Q1. Can I have a sample order for your product?
A: Yes, we welcome sample order to test and check quality.
Q2. Do you have any MOQ limit for order?
A: MOQ is 1KG. Other quantity checking is also available.
Q3. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, EMS, FedEx or TNT. It usually takes 3-7 days to arrive.
Q4. What is your payment terms?
A: 100% advance payment by T/T, Western Union, MoneyGram, Paypal.
Q5. How should I store the product usually?
A: Preserve in tightly sealed, light and oxygen resistant containers.
Q6. What is the shelf life of your product?
A: 2 years when properly stored.
A: Yes, we welcome sample order to test and check quality.
Q2. Do you have any MOQ limit for order?
A: MOQ is 1KG. Other quantity checking is also available.
Q3. How do you ship the goods and how long does it take to arrive?
A: We usually ship by DHL, UPS, EMS, FedEx or TNT. It usually takes 3-7 days to arrive.
Airline and sea shipping also optional.
Q4. What is your payment terms?
A: 100% advance payment by T/T, Western Union, MoneyGram, Paypal.
Q5. How should I store the product usually?
A: Preserve in tightly sealed, light and oxygen resistant containers.
Q6. What is the shelf life of your product?
A: 2 years when properly stored.
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