High Purity Dimethyl Carbonate for Pharmaceutical Industry

Min.Order: 16

Product origin: Qingdao, Shandong, China

Infringement complaint:

Complaint

US$ 930 ~ 1050

Description

Dimethyl carbonate is an organic compound with chemical formula C3H6O3. It is a chemical raw material with low toxicity, excellent environmental protection performance and wide range of uses. It is an important organic synthesis intermediate. Its molecular structure contains carbonyl, methyl and methoxy functional groups, and has a variety of reaction properties. It is safe, convenient, less pollution, and easy to transport in production.
Substitute phosgene as carbonylation agent
Although phosgene has high reactivity, its highly toxic and corrosive by-products make it face great environmental pressure, so it will be gradually eliminated; DMC has a similar nucleophilic reaction center. When the carbonyl group of DMC is attacked by nucleophilic attack, the acyl-oxygen bond breaks to form carbonyl compounds, and the by-product is methanol. Therefore, DMC can replace phosgene as a safe reaction agent to synthesize carbonic acid derivatives, such as carbamate pesticides, polycarbonate, isocyanate, etc. Polycarbonate will be the largest demand area of DMC, It is predicted that more than 80% of DMC will be used to produce polycarbonate in 2005.
Substitute dimethyl sulfate as methylating agent
Due to the same reason as phosgene, dimethyl sulfate is also under the pressure of being eliminated. When the methyl carbon of DMC is attacked by nucleophilic, its alkyl-oxygen bond breaks, and the methylated product is also generated. Moreover, the reaction yield of DMC is higher and the process is simpler than that of dimethyl sulfate. Its main uses include synthetic organic intermediates, pharmaceutical products, pesticide products, etc.
Low toxic solvent
DMC has excellent solubility, narrow melting and boiling point range, high surface tension, low viscosity, low dielectric constant of medium, high evaporation temperature and fast evaporation rate, so it can be used as a low-toxic solvent in the coating industry and pharmaceutical industry. It can be seen that DMC not only has low toxicity, but also has the characteristics of high flash point, low vapor pressure and high lower explosive limit in the air. Therefore, DMC is a green solvent that combines cleanliness and safety.

Items	Unit	Specification	Result
Appearance	----------	Colorless & transparent liquid	Colorless & transparent liquid
Content	Weight %	≥99.9	99.93
Moisture	Weight %	≤0.02	0.018
Methanol	Weight %	≤0.02	0.005
Acidity	( CH₃COOH ) ppm	≤0.015	0.01
Free Chlorine	Weight %	≤0.001	0.01
Color	Apha	≤5	<5

Dimethyl carbonate can be used in the pharmaceutical industry to synthesize anti infective drugs, heat clearing and detoxification drugs, vitamin Sulei drugs, or central nervous system drugs.

Packaging:200kg/drum,80drums

Company profiles:

QingDao Hong Hao chemical co Ltd. Is located inqingdao and its warehouse located in Dawang Economic Development Zone, Dongying City, Shandong Province, at the mouth of the beautiful Yellow River. Founded in 2014, the company has a business history of 8 years. It covers an area of about 300000 square meters and has a total assets of 160 million yuan. It is a company integrating domestic and international trade.

Development history:

QingDao Hong Hao chemical co Ltd was established in 2014. At the beginning of its establishment, the company mainly engaged in the development of domestic business. Subsequently, with the expansion of the plant, we expanded from the sales of chemical products of a few categories to the sales of dozens of products. Since 2019, we began to expand international trade. At present, we have cooperated with Pakistan, India, Southeast Asia, South America, Trade partners of dozens of countries and regions such as Africa have established profound contacts.

Sales scale of the company:

30000 tons / year of methylene chloride, 20000 tons / year of trichloromethane, 20000 tons / year of dimethylformamide, 30000 tons / year of aniline, 20000 tons / year of dimethyl carbonate, 20000 tons / year of propylene glycol and other chemical products.

Business purpose:

The company always adheres to the business philosophy of "integrity and win-win", with the business purpose of "forge ahead and prosper with integrity". We sincerely welcome customers at home and abroad to negotiate business.

Nature of Business:

The company has complete qualifications and main products: Methylene chloride, aniline, dimethylformamide, dimethyl carbonate, propylene glycol, formic acid, glacial acetic acid, methyl acetate, ethyl acetate, butyl acetate, ipa, phenol, Maleic anhydride and cyclohexanone, tetrachloroethylene, thf, DMSO and other chemical products.

1. Stable quality, high quality to meet customers' high quality procurement requirements.
2. Competitive price.
3. Years of industry experience.
4. We have sufficient supply of goods.
5. Correct delivery time commitment.
6. We can provide a variety of products.
7. Continuous improvement to ensure long-term cooperation.
8. Provide honest services for your entire procurement process.

Q1: How fast can I get the quotation?
A: We usually quote within 12 hours after we get your inquiry. If you are very urgent to get the reply, please call us
directly so that we will give priority to your inquiry.

Q2: Which kind of payment terms do you accept?
A: Both T/T and LC are acceptable.

Q3: How long is your delivery?
A: Within two weeks after receiving the T/T deposit or L/C original.
Q4: May I get one sample before placing order?
A: Yes, we'd like to provide sample for you. For those normal products, you just need to bear the freight; for those
high value products, you need to bear freight and a little product cost. If we cooperate for some times or if you
are our VIP customer, free sample will be offered when you need.

Q5: Is there any possible to use my appointed label or package?
A: Sure. If needed, we'd like to use label or package according to your requirement.

Q6: How can you guarantee the goods you offer is qualified?
A: We always believe honesty and responsibility are basis of one company, so whatever products we provide for
you are all high qualified. We always final Inspection before shipment.If the goods can't achieve the quality we promise, you can ask for refund.

Q7: Can you give me a discount?
Surely, it depend on your Qty.