Hebei Nengqian Chemical Import and Export Co., LTD
Assessed Supplier Enterprise Certification
- Assessed
Supplier - 4th
years
Assessed Supplier Enterprise Certification
Product Certification&
Enterprise Certification
Country: 
China (Mainland)
Business Type:Trading Company
Tel: +86 18732968538
Mobile: +86 18732968538
Tel: +86 18732968538
Fax: 4001020630
URL: https://www.nengqianchemical.com/
Province/state: Hebei
City: Handan
Street: No.1722, Block C, Yangguang Xinzhuo Plaza, 256 Renmin West Road, Fuxing District, Handan City, Hebei Province
MaxCard:
Ms.AnnaCAS NO.636-61-3
Pharmaceutical grade(1-50)KilogramPharmaceutical grade(51-99)Kilogram
Our Advantage
Rich Experience
Our products are sold all over Europe,North&South America, Sino-East, Asia and pacific area as well as Africa,we establish long term.
Quality service
Company cooperates with research institutes. We strictly control the process of raw materials up to finished product.
24 hour service
Quick and clear response to customers questions. Warm after sale service, we will help to solve the problems in your usage.
High quality
Dedicated to serving customers first, we provide reasonable prices, high quality products.
1) Standard:BP/USP/EP/Enterprise standard
2) All Purity≥99%
3) We are manufacturer and can provide high quality products with factory price.
2, Fast and safe delivery
1) Parcel can be sent out in 24 hours after payment.Tracking number available
2) Secure and discreet shipment.Various transportation methods for your choice.
3) Customs pass rate ≥99%
4) We have our own agent/remailer/distributor who can help us ship our products very fast and safe,
and we have stock in there for transferring.
| Molecular Formula | C4H6O5 |
| Molar Mass | 134.09 |
| Density | 1.60 |
| Melting Point | 98-102 °C (lit.) |
| Boling Point | 167.16°C (rough estimate) |
| Specific Rotation(α) | 2.2 º (c=3, H2O) |
| Flash Point | 153.4°C |
| Water Solubility | soluble |
| Solubility | Soluble in water, alcohol and other organic solvents |
| Vapor Presure | 7.19E-05mmHg at 25°C |
| Appearance | (White)Crystalline Powder |
| Color | White |
| Merck | 14,5707 |
| BRN | 1723540 |
| pKa | 3.61±0.23(Predicted) |
| PH | 2.2 (10g/l, H2O, 20℃) |
| Storage Condition | Store below +30°C. |
| Sensitive | Sensitive to light |
| Refractive Index | 6.5 ° (C=10, Acetone |
| MDL | MFCD00004245 |
| Use | For chiral drugs, chiral additives, chiral auxiliaries |
| In vitro study | Some bacteria belonging to Arthrobacter, Brevibacterium, Corynebacterium, Pseudomonas, Bacillus, and Acinetobacter produced D-(+)-Malic acid (D-Malic acid) from Maleic acid when the cells grown in a medium containing citraconic acid are reacted aerobically with Maleic acid in the pH 7.0 phosphate buffer containing 0.1% sodium chloride. |
An extremely important four-carbon organic chiral source. Mainly used in chiral drugs, chiral additives, chiral additives and other fields. It is used as a chiral source for chiral synthesis in the pharmaceutical and food industries. As an optically active organic acid, it plays an irreplaceable role in the asymmetric synthesis of some chiral compounds. Naturally occurring isomers are L-forms found in apples and many other fruits and plants. Selective α-amino protection reagents for amino acid derivatives. D-malic acid is used to prepare universal synthons of chiral compounds, including Wei opioid receptor agonists, 1 α, 25-dihydroxyvitamin D3 analogs, and phospholipomycin B.
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| Use | buffer, flavoring agent, curing agent. for chiral drugs, chiral additives, chiral auxiliaries, etc. Selective α-amino protection reagents for amino acids, for the preparation of chiral compounds of various amino acids, included are Wei-opioid receptor agonists, 1α, 25-dihydroxyvitamin d3-analogs. |
| Application | the use of L-malic acid in food, medicine, daily chemical industry and other sectors is as follows:(1) Food Industry: used for processing and configuration of beverages, wine, fruit juice, also used in the manufacture of candy, jam, etc., and has antibacterial and antiseptic effect on food. Can also be used for yogurt fermentation PH adjustment, in addition to the wine brewing tartrate. (2) tobacco industry: malic acid derivatives (such as esters) can improve the flavor of tobacco. (3) pharmaceutical industry: a variety of tablets, syrup with malic acid can be a fruit flavor, and is conducive to the absorption and diffusion in the body. (4) daily chemical industry: it is a good complexing agent and Ester agent, which is used in toothpaste formula, net tooth tablet matching, synthetic perfume formula, etc., and can also be used as a component of deodorant and detergent. Limited: for jam and jelly, orange jelly. Can be used for milk drinks. |
| biological activity | D-( )-Malic acid (D-Malic acid) is an active isomer of Malic acid, is a competitive inhibitor of L(-)malic acid transport. |
| production method | 1. Malate is isolated from immature apples; It is mainly produced by catalytic oxidation of benzene to maleic anhydride in industry, and then reacted with water under high temperature and high pressure. |
Product Packaging：
1) 1kg/bag (1kg net weight, 1.1kg gross weight, packed in an aluminum foil bag)
2) 25kg/drum (25kg net weight, 28kg gross weight; Packed in a cardboard-drum with two plastic-bags inside; Drum Size: 510mm high, 360mm diameter)
Storage：
Stored in a cool and dry well-closed container. Keep away from moisture and strong light/heat.
Delivery：
Usually within3-5 working days after full payment.
transport：
EMS,DHL, TNT, UPS ,FEDEX, BY AIR, BY SEA
DHL Express, FedEx and EMS for quantity less than 50KG, usually called as DDU service;
Sea shipping for quantity over 500KG; And air shipping is available for 50KG above;
For high value products, please select air shipping and DHL express for safe;
Our Service:
1. Fast Delivery: We can delivery within 24 hours upon receipt of your payment.
2. Quality can be promised. Hot sell to Worldwide.
3. Payment Terms: T/T,, t/t
4. Free Sample available at any time.
5. Tracking your order at any time. Inform your order's further new situation at any time.
6. Package: Professional packing with professional materials.
Packing:
1. Inner double plastic bags----25kg/Fiber drum (35*35*45cm, GW: 28kg, NW: 25kg);
2. Inner double plastic bags----5kg/Aluminum foil bag (GW: 6.5kg, NW: 5kg).
3. Inner double plastic bags----1kg/Aluminum foil bag (GW: 1.5kg, NW: 1kg).
P.S.: we accept packaging customization.
Delivery:
1. Stock products are normally shipping within 3 working days.
2. For rush delivery, please contact our sales team for particular arrangement.
Shipping Details:
1. We ship goods via DHL, Fedex, UPS, TNT, China post, NL Post and other couriers, weight from 10g to 1000kg or even bulker.
2. Shipping details & shipping documents will be provided and sent by email.
3. We keep tracking the shippment until clients well received.
4. After years export shipping experience, with professional and experienced cooperated forwarders, we ensure that goods can be delivered in multiple ways safetly and efficiently.
About us
Our company specializes in processing and selling chemical raw materials, chemical products, pharmaceutical intermediates, veterinary medicine intermediates, dye intermediates, pigments, cosmetics raw materials and chemical reagents,
We have compalete sales and service team , information feedback vertical integration of a sound marketing network, products are sold throughout the country and exported to South Asia, Europe, America, Africa and other more than 20 countries and regions.
Companies adhering to the "pursuit of quality, innovation and development" business philosophy, to serve as a foundation, for the survival by the quality, seek development by science and technology, adhere to quilty comes first,fair price,good sense of customer service and responsibility. in the future hebei Nengqian import and export trade Co.,Ltd will always hold "integrity, innovation" business philosophy, to achieve honesty management, on the way of specialization, internationalization, Keep moving!
FAQ:
1. Are you a trade company or factory
We are a factory with our own trading company.
2.How do you control the quality
Our factory is equipped with professional technicians to control quality, out inspectors take sample for testing every 2 hours to ensure the quality of our production. We also accept BV, SGS or any other Third-party inspection.
3. How long is lead time
We deliver goods within 3 days for small order, 7-10 days for bulk order.
4. Where is your factory located How can I visit the factory
Our factory located in HEBEI, China.
5. Can i get some samples
Yes, we can supply free sample, but the shipping cost be paid by our customers.
6. How to start orders or make payments
Proforma invoice will be sent first after confirmation of order, enclosed our bank information.Payment by T/T,
7. How to confirm the Product Quality before placing orders
You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples.
You can send us your product specifications and requests,we will manufacture the products according to your requests.
8. How long is lead time
We deliver goods within 3 days for small order, 7-10 days for bulk order.
9. How do you treat quality complaint
First of all, our quality control will reduce the quality problem to near zero. If there is a realquality problem caused by us, we will send you free goods for replacement or refund your loss.