| CAS No.: | 1916-07-0 |
|---|---|
| Formula: | C11h14o5 |
| EINECS: | 217-629-3 |
| Certification: | GB |
| Environmental Protection: | Yes |
| Color: | White |
| Samples: |
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| Customization: |
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Product Description
Product name: Trimebutine Intermediate 3,4,5-Trimethoxybenzoic Acid Methyl Ester
Formula : C11H14O5
Molecular weight : 226.2259g/mol
CAS-No. : 1916-07-0
EINECS NO: 217-629-3
APPERANCE: White crystal powder
STORAGE: Sealed container, in dark place, no contact with metals.
PACKAGE: Fiber can, 25kg/drum
| Item | Specification |
| Appearance | white crystalline powder |
| Content(%) | ≥99.0% |
| Loss on drying(%) | ≤0.50% |
| Melting Point(oC) | 81-85oC |
| Residue of Ignition(%) | ≤0.10% |
| Pb( ppm) | <1ppm |
| As(ppm) | <3ppm |
| Hg(ppm) | <1ppm |
Trimebutine Intermediate 3,4,5-Trimethoxybenzoic Acid Methyl Ester
Trimebutine Intermediate 3,4,5-Trimethoxybenzoic Acid Methyl Ester
3,4,5-trimethoxybenzoate Methyl ester 3,4, 5-Trimethoxybenzoate is synthesized from Gallic acid and is mainly used to produce trimethoprim (TMP), sulfonamide synergist intermediates, and many other drugs.
It is prepared by the methylation of gallic acid and dimethyl sulfate. Add water, gallic acid and dimethyl sulfate to the reaction pot, drop sodiumhydroxide solution at 15-35ºC, and stir at about 40ºC for half an hour. A second batch of dimethyl sulfate was added and sodiumhydroxide solution was added at about 40ºC to a pH of 8-9. After 1h reaction, it was cooled, filtered, washed and dried to get methyl trimethoxy benzoate with yield above 90%. The methylation and esterification reactions mentioned above can also be carried out in water and chloro form using tetrabutyl ammonium bromide as phase transfer catalyst. The product can also be prepared by using tannic acid as raw material or by esterification of 3,4, 5-trimethoxy benzoic acid and meth anol.
Products Application
Our service
1. We provide life-long after sale service.
2. We closely cooperate with experienced transportation agent, shipping companies/air lines (Like DHL, Fedex, TNT, EMS) to ensure the shortest shipping time at the latest available freight.
3. All enquiries and requests about our products will be replied within 24 hours except weekends and public holidays of China.
4. All problems faced by our customers will be taken and solved promptly.
Brief Introduction On Wufeng Chicheng Biotech Co., Ltd
Wufeng Chicheng Biotech Co., Ltd was established in beautiful and economically developedYichang city in 2004. We are a fast-growing enterprise who focus on functional and nutritional food & feed additives which including tannic acid, gallic acid, propyl gallate, Chinese gallnuts, etc.
Base on strong Chinese supply support, Wufeng Chicheng had expanded its global market into Europe, East Asia, Southeast Asia, Oceania, North and South America with stable and mature customers with more than 95% repurchase rate. There are more than 100 customers make deals with us in last 10 years which included most of listed companies.
ISO9001/FAMI-QS/FDA/SGS are our basic certificates. Wufeng Chicheng is a leading enterprise who go head on food & feed additives with rapid revenue growth.
Being more and more professional enterprise in food & feed additives is Wufeng Chicheng's solid target. Making customers' orders easier, more efficient and more reliable is Wufeng Chicheng's constant mission. Wufeng Chicheng is always glad to explore market along with customers as we believe grow together with customers will take longer and deeper development for us.
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FAQ
Q1: Are you a manufacturer or trading company?
Re: We are one company integrated industry and trade. No matter the products we manufacture or trade, high quality products and competitive price always will be provided for you.
Q2: May I get one sample before placing order?
Re: Yes, we'd like to provide sample for you. free samples(max 1Kg) are available, but freight cost will be born by customers.
Q3: Which payment is available for your company?
Re: In order to prompt our cooperation, there are some payment methods for your choice. T/T(USD), Western union, Paypal, Credit card, Alipay or Alibaba trade insurance all is ok. You can choose the one which is convenient for you.
Q4: How and when can I get my goods after payment?
Re: For small quantity products, they will be delivered to you by international courier(DHL, FedEx, T/T, EMS, etc.) or by air. Usually it will cost 2-5 days that you can get the goods after delivery.
For large quantity products, shipment is better. It will cost days to weeks to come to your destination port, which depends on where the port is.
Q5: Is there any possible to use my appointed label or package?
Re: 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?
Re: We always believe honesty and responsibility are basis of one company, so whatever products we provide for you all are high qualified. If the goods can't come to the quality we promise, you can ask for refund.
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