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.329-98-6
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 | C7H7FO2S |
| Molar Mass | 174.19 |
| Density | 0.797g/mLat 20°C |
| Melting Point | 92-95°C |
| Boling Point | 112°C16mm Hg(lit.) |
| Flash Point | 222°F |
| Water Solubility | hydrolysis |
| Solubility | Insoluble in water, and very unstable in aqueous solution, easy to decompose. Soluble in isopropanol, ethanol, methanol, xylene and petroleum ether. |
| Vapor Presure | 0.117mmHg at 25°C |
| Appearance | White to milky white solid |
| Color | White |
| Merck | 14,7542 |
| BRN | 2088311 |
| Storage Condition | 2-8°C |
| Sensitive | Moisture Sensitive |
| Refractive Index | 1.502 |
| MDL | MFCD00007424 |
| Use | This product is for scientific research only and shall not be used for other purposes. |
| In vitro study | PMSF can rapidly inhibit the activity of chymotrypsin purified from human pancreas, while it has a weak effect on human trypsin, and can also rapidly inhibit pancreatic cholinesterase in human erythrocytes. PMSF is an inhibitor of specific phosphatidylinositol phospholipase C. A 2 mM PMSF can almost completely inhibit the formation of phosphatidylinositol (PI) activated by Carbachol in longitudinal smooth muscle of guinea pig ileum, however, there was no effect on the pathway of phosphatidylinositol formation from inositol activated by myosin. In contrast, PMSF produced a transient inhibitory effect on both Carbachol and potassium-stimulated muscle contractions. PMSF also inhibited the addition of ethanolamine phosphate to the formation of the Glycosylphosphatidylinositol (GPI) intermediate in Trypanosoma brucei and the acylation of the muscle sugar residue of the GPI intermediate in the blood of Trypanosoma brucei. PMSF can inhibit the addition of ethanolamine phosphate and acylation of muscle sugar in the pre-circulating form of Trypanosoma brucei, but cannot inhibit this process in mammalian HeLa cells. PMSF is the best inhibitor of murine acetylcholinesterase, because the inhibitory effect of 8 times of BSF is 6 times lower than that of PMSF. |
| In vivo study | Intraperitoneal injection of PMSF into Sprague-Dawley rats produced a dose-dependent analgesic effect. PMSF can significantly improve the analgesic effect of β-endorphin (END) in rats. Intraperitoneal injection of PMSF in mice can produce the effect of cannabinoids, which can resist injury, lower body temperature and maintain immobility. Their ED50 is 86 mg/kg respectively, 224 mg/kg and 206 mg/kg. Pretreatment with a low dose of PMSF (30 mg/kg) enhanced the effects of cannabinoids on tail-flick response (antinociceptive effect), spontaneous mobility and mobility by a factor of 5, 10 times and 8 times. Treatment of hens with PMSF 12 hours before PSP provides complete protection against Delayed Neurotoxicity (OPIDN), but treatment with PMSF 4 hours after PSP potentiates neurotoxic effects. At 1 or 10 mg/kg. Pretreatment with PMSF inhibited trio-cresyl phosphate (TOCP)-induced neurofilament (NF) degeneration and prevented organophosphate-induced delayed neuropathy (OPIDN) in hens. By inhibiting fatty acid amide hydrolase activity, PMSF can inhibit the canonical cannabinoid effect of Δ(9)-tetrahydrocannabinol (THC) or cannabinoid (AEA) in ICR mice. |
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.