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.69-53-4
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.
| Molar Mass | 349.4 |
| Density | 1.2794 (rough estimate) |
| Melting Point | 198-200°C (dec.)(lit.) |
| Boling Point | 201.8°C (rough estimate) |
| Specific Rotation(α) | D23 +287.9° (c = 1 in water) |
| JECFA Number | 85 |
| Water Solubility | 13.9g/L(25 ºC) |
| Solubility | NH4OH 1 M: 50mg/mL, clear, colorless |
| Appearance | solid |
| Color | White to Pale Yellow |
| Merck | 13,591 |
| BRN | 1090925 |
| pKa | 2.5 (COOH)(at 25℃) |
| Storage Condition | 2-8°C |
| Stability | Stable, but may be moisture sensitive. Incopmpatible with strong oxidizing agents. |
| Refractive Index | 1.6320 (estimate) |
| Physical and Chemical Properties | Semi-synthetic, broad-spectrum penicillin antibiotics. Its free acid contains 3 molecules of crystal water for oral use; Its sodium salt for injection. White or off-white powder or crystal. Odorless, slightly bitter, soluble in water, slightly soluble in ethanol, insoluble in ether. Not resistant to enzymes, acid-stable. |
| Use | For the treatment of sensitive enterococci, Shigella, Salmonella Typhi, Escherichia coli, listeria, Aerobacter aerogenes, influenza and Proteus mirabilis |
Authoritative Data Verified Data
acidity
take this product, add water to make a solution containing about 0631 mg per 1 ml, heat it in a 60°C water bath to dissolve it, let it cool, and measure it according to law (general rule), the pH should be between 3.5 and 5.5.
clarity of the solution
take 5 parts of this product, 0.6g each, add 5ml of 1 mol/L hydrochloric acid solution to dissolve it, and immediately check it. Take another 5 parts of this product, each 0.6g, add 5ml of 2mol/L ammonium hydroxide solution to dissolve, immediately check, the solution should be clear; If it is turbid, it should not be more concentrated compared with No. 2 Turbidity standard solution (General rule 0902 first method).
Related substances
new system for clinical use. Take an appropriate amount of this product, precision weighing, and add mobile phase A to dissolve and quantitatively dilute to prepare A solution containing about 3mg per lml as A test solution; Take an appropriate amount of ampicillin reference substance, precision weighing, mobile phase A was added to dissolve and quantitatively dilute to prepare A solution containing about 30ug per 1 ml as A control solution. According to the high performance liquid chromatography (General 0512) test, silica gel bonded with eighteen alkyl silane was used as filler; Mobile phase A was 12% acetic acid solution -0.2mol/L potassium dihydrogen phosphate solution-acetonitrile-water (0.5:50:50 :900) mobile phase B was 12% acetic acid solution -0.2mol/L potassium dihydrogen phosphate solution-acetonitrile-water (0.5:50:400:550); The detection wavelength was 254nm. First, the mobile phase A- mobile phase B(85:15) was used for isocratic elution, and immediately after the ampicillin peak elution was completed, the linear gradient elution was carried out according to the following table. Appropriate amount of ampicillin system applicable reference substance is taken, dissolved and diluted with mobile phase A to make A solution containing about 2mg per 1 ml, and 20ul is injected into the liquid chromatograph. The chromatogram recorded should be consistent with the standard chromatogram. 20 u1 of the test solution and the control solution were respectively injected into the liquid chromatograph, and the chromatograms were recorded. If there are any impurity peaks in the chromatogram of the test solution, the single impurity shall not exceed 1.0% and the total amount of each impurity shall not exceed 3.0% based on the calculation of ampicillin peak by external standard method, the peaks in the chromatogram of the test solution which were 0.05 times smaller than the main peak area of the control solution were ignored.
N,N-dimethylaniline
take about 1.0g of this product, weigh it accurately, place it in a test tube with a stopper, add 5ml of 1 mol/L sodium hydroxide solution, and add the internal standard solution accurately (weigh the proper amount of naphthalene accurately, add cyclohexane to dissolve and dilute to make a solution containing about 50ug per lml) lml, shake strongly, stand still, take the upper liquid as the test solution; Take 50mg of N,N-dimethylaniline, add 2ml of hydrochloric acid and 20ml of water to the measuring flask, shake and mix well, dilute to the scale with water, shake well, take 5ml of the measuring flask, place it in the 250ml measuring flask, dilute to scale with water, shake well, take 1ml accurately, put it in a test tube, add 5ml of 1 mol/L sodium hydroxide solution, add 1ml of internal standard solution accurately, shake strongly, and stand still, the supernatant was taken as a control solution. According to the gas chromatography (General 0521) test, with silicone (OV-17) as stationary phase, coating concentration of 3%; Column temperature of 120°C;N, the resolution between N-dimethylaniline peak and internal standard peak shall meet the requirements. 2 u1 of the test solution and the reference solution were respectively injected into the gas chromatograph, and the chromatogram was recorded. The peak area ratio was calculated according to the internal standard method, N, the amount of N-dimethylaniline should not exceed 20 parts per million.
moisture
take this product, according to the moisture determination method (General 0832 first method 1), the moisture content should be 12.0% ~ 15.0%.
ignition residue
take l.Og of this product and check it according to law (General rule 0841). The residue left shall not exceed 0.5%.
Heavy metals
The residue left under the item of taking the ignition residue shall not contain more than 20 parts per million of heavy metal when examined by law (General rule 0821, Law II).
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.