Project Description

Chemical NameHydroquinone
CAS No.123-31-9
Molecular Formula:C6H6O2
Molecular Weight:110.11

Use as photographic reducer and developer; as reagent in the determination of small quantities of phosphate; as antioxidant. Depigmentor; K channel agonist; Antihypertensive



Appearance: Needle-Like Crystals or Crystalline Powder

Please contact MainChem Co, Ltd. for any questions regarding Hydroquinone. We would be happy to provide a quote, a sample, or further information regarding it, Hydroquinone MSDS -Material Safety Data Sheet and Hydroquinone CAS 123-31-9 COA-Certificate of Analysis, Product Data Sheet – in PDF Document.

China Hydroquinone Supplier, Hydroquinone Manufacturers, China CAS 123-31-9 Supplier

Melting point172-175 °C(lit.)
Boiling point285 °C(lit.)
vapor density3.81 (vs air)
vapor pressure1 mm Hg ( 132 °C)
refractive index1.6320
Fp165 °C
storage temp.Refrigerator
solubilityH2O: 50 mg/mL, clear
pka10.35(at 20℃)
formNeedle-Like Crystals or Crystalline Powder
colorWhite to off-white
Water Solubility70 g/L (20 ºC)
SensitiveAir & Light Sensitive

Signal word 
Hazard statements 
Precautionary statements 
Hazard Codes 
Risk Statements 
Safety Statements 
WGK Germany 
Autoignition Temperature
930 °F
HS Code 
LD50 orally in rats: 320 mg/kg (Woodard)

Hydroquinone Premium Supplier from China

Wuhan W&Z Biotech Co.Ltd

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Wuhan W&Z Biotech Co.Ltd is one of the top biotech companies, located in Wuhan, China. Their area of focus is Research & Development, Biomedical and Health field Sales & Service, and Production.
Some of the essential features of Wuhan W&Z Biotech Co.Ltd are scientific research strength, advanced management system, and top-class marketing team. One of the key elements of this company is that you not only get the standard products they have listed but can also request customization according to your requirements.

If you are looking for a company that puts quality first, then this can be your perfect match. Their R&D team contains 5 experts and works jointly with Wuhan University, Huazhong University of Science and Technology, and other well-known universities in the area, producing the best quality products.

The next question that may arise in your mind is, how about their customer service? Will they be easy to deal with? Will they listen and provide what I want?

Well, you will be surprised to know that Wuhan W&Z Biotech is service-oriented and values its customers. Their dedicated trade team will work closely with you providing you with the best customer service.

Even though they are a Chinese company, they can easily interact with you in your language. This company can comfortably communicate with you in almost 13 different languages with Arabic, Russian, French, Italian being a few.

Now you can effortlessly connect with them and get the products at your doorsteps.


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Xian Lyphar Biotech Co., Ltd is a chemical company offering products that help to improve health and environmental performance. As such, this company was established in 2001. Located at Hi-Tech Industrial Zone, X’ian City, Shannxi, the company ensures on-shelf availability using sophisticated technology to meet your needs.

The main products that Lyphar biotech manufactures are plant extracts and health care products. With over 15 research experts, the company is dedicated to executing extensive research and maintaining the production of high-quality products.

As the world evolves, innovation in agriculture is beginning to rise and certainly part of this evolution. Lyphar biotech grows plants, extract, produce, and supplies its products to prospective customers. It means most of the products you will get from the company are manufactured from plant extracts.

The company, with the help of its equipped laboratory, develops reliable chemistry analyses. Interestingly, if you want to experiment with new products but lack laboratory devices, the company can help solve your problem.

Generally, these products are sold to pharmaceutical and health care companies. With the company’s dedication to innovation and high-quality products, it supplies OEM service. That is, it produces products that can be marketed under your company’s brand name. Not all Chinese companies are of the same standard with international specifications. But Lyphar biotech meets and implements international as well as the internal standard. The company is SGS, IQNet, and CQC certified.

Since the company was set in motion, it has developed a wide range of product portfolio. This is based on the production practices carried-out in its GMP standard facility. Likewise, various detection devices have contributed immensely to the manufacturing and distribution of fine chemicals. With the authorization and certification of the company, you can count on them for high-quality products.

Because Chinese companies expand overseas, the business environment has improved and become more assessable. Most of the products produced by the company are sold in the domestic market and other countries such as USA, Europe, and Japan. This is attributed to the 2 sales departments, with over 30 people selling these products all over the world.

Lypar biotech combines creativity and innovation and is known for setting standards of excellence both at home and abroad. Its outstanding business initiatives earned it the most influential new foreign trader award in china Midwest in 2017. Some other awards are china mid-west enterprise award, 2019, Alibaba SKA Enterprise, 2019, and so on.


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Suzhou greenway biotech., Ltd is an integrated chemical industry headquartered in Suzhou, Jiangsu, China. The company specializes in industrial products centered on technologies in peptides, Alpha Arbutin, Glutathione, Hyaluronic acid, and Kojic acid. Its founding business areas are food and cosmetic ingredients. Obviously, as you can see, food and cosmetics are necessities. Therefore, the company is focused on improving the quality of life for people in the area of food, and environment.

Presently, the company operates businesses in three main categories – Cosmetic ingredients, cosmetics peptide, and nutritional supplements. As part of the strategy to focus more on specialties, greenway biotech developed a high standard Research & Development center. With this, the company creates new value through innovative ideas, technologies, and products. So, you could get access to the available products within the company’s response time limit which is 12 hours.

To ensure that products are consistently produced, the company has in its possession production facilities and equipment. The manufacturing practices in these facilities are of quality standards, which was why the company was ISO/GMP certified. For the record, Greenway biotech products have appropriate certificates of registration. That’s not all; the company is also approved by U.S food and drug administration (FDA).  Hence, you don’t need to worry about using these products as they are safe and secured.

Technological developments have provided humankind with tools that have become essential allies of man in many fields. Greenway biotech is no different, and the technology has been transforming lives. You might have witnessed the positive transformation in the chemical industry as a whole. But in this company, activities are no longer limited to producing quality products. Instead, the company has evolved into a complex set of practices that includes ingredients sourcing service for you upon request.

With its innovative technology since 2015, greenway biotech’s deliver products to Southeast Asia, North America, Oceania, and Africa. As the company progresses, it generates revenue of $2.5 million – $5million in a total annual sale. Such progress is only possible because it has been investing in research and innovations that enhance peptide use.

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