Hebei Nengqian Chemical Import and Export Co., LTD
Assessed Supplier
- Assessed
Supplier - 4th
years
Assessed Supplier
Product Certification&
Enterprise Certification
Country: 
China (Mainland)
Business Type:Trading Company
Tel: 86-139-10575315
Tel: +86 15632961819
Tel: +86 18233902561
Tel: +86 15717685612
Tel: +86 16630923639
Tel: +86 18732968538
Tel: +86 18833033983
Tel: +86 19831957301
Mobile: +86 19831957301
Tel: 86-139-10575315
Fax: 4001020630
URL: https://www.nengqianchemical.com/
Province/state: Hebei
City: Handan
Street: Congtai District, La Defense North
MaxCard:
Ms.AnnaCAS NO.120068-37-3
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.
Product Description
| Introduction | Fipronil (Fipronil), chemical name 5-amino -1-(2,6 dichloro-4-trifluorotolyl)-4-Trifluoromethyl-sulfinyl pyrazole -3-nitrile, is the first benzyrazole used for pest control. Since its discovery in 1987, it has been widely used in many fields such as agriculture and veterinary medicine, and has become an important pesticide variety. Fepperoni, the trade name is Ruijin, is a new type of benzyrazole insecticide, which is compared with traditional insecticides (organophosphorus, pyrethroids, carbamates), It has the advantages of broad spectrum and high efficiency. It has been widely used in many agricultural fields and is a commonly used insecticide for pest control. |
| pharmacological effects | fipronil mainly induces Cl-flow by blocking the Cl-channel of the nerve membrane controlled by γ-aminobutyric acid receptor, causing extreme excitement of the nervous system and leading to death of worms, thus achieving the prevention and control effect on various economic pests. |
| Preparation | 4-trifluoromethylaniline reacts with hydrochloric acid in hydrogen peroxide to generate 2,6-dichloro-4-trifluoromethylaniline; it is diazotized with sodium nitrite and hydrochloric acid to form diazonium salt, and is condensed with ethyl 2, 3-dicyanopropionate to form a condensate, and a pyrazole ring is formed in a closed loop in ammonia; then it is condensed with trichloromethyl sulfinyl chloride, the reaction product of perchloromethyl mercaptan oxidation by hydrogen peroxide, to obtain sulfide, and then undergo a replacement reaction with hydrogen fluoride to obtain non-prednis. The chemical reaction formula is as follows: |
| toxicity | acute oral LD50 in rats is 100 mg/kg, and acute percutaneous LD50 in rats is> 2000 mg/kg. Acute inhalation of LC50 in rats was 0.682mg/L. No irritation to rabbit skin, no irritation to eye mucosa. Ames test was negative and had no teratogenic effect. The LC50 of carp is 0.34mg/L (96h), and the oral LD50 of wild ducks is> 2150mg/kg. |
| Uses | Fluoropyrazole-containing broad-spectrum insecticides have high activity and wide application range. They are very sensitive to Hemiptera, Thysanoptera, Coleoptera, Lepidoptera and other pests, as well as pyrethroid and carbamate insecticides. It can be used for rice, cotton, vegetables, soybeans, rape, tobacco leaves, potatoes, tea, sorghum, corn, fruit trees, forests, public health, animal husbandry, etc., to control rice borers, brown planthoppers, rice weevil, cotton bollworm, armyworm, Plutella xylostella, Cabbage worm, Cabbage armyworm, armyworm, beetle, caterpillar, fruit tree mosquito, wheat aphid, coccidia, trichomonas, etc. The recommended dosage is 12.5~150g/hm2. China has approved field efficacy tests on rice and vegetables. The preparation is 5% gum suspension and 0.3% granules. Mainly used in rice, sugar cane, potatoes and other crops, animal health is mainly used to kill parasites such as fleas and lice on cats and dogs |
| production method | preparation of 5-amino -3-cyano -1-(2, 6-dichloro-4-trifluoromethyl phenyl) pyrazole suspension prepared from 7g sodium nitrite and 27.5mL concentrated sulfuric acid is diluted with acetic acid, and 21.2 g2 is added dropwise at 25~32 ℃, the acetic acid solution of 6-dichloro -4-trifluoromethylaniline is 50mL, the temperature is raised to 55 ℃, the temperature is heated for 20min, the solution of acetic acid (60mL) and water (125mL) of ethyl 2,3-dicyanopropionate is poured into, after stirring for 15min, water is added, the oil layer is separated, the dichloroethane is extracted, the oil layer is merged, the ammonia water is washed to pH 9, stratified, washed with water and dilute hydrochloric acid, dried, filtered and evaporated, the oil was recrystallized in toluene and hexane with 70.9% yield. Preparation of 5-Amino-3-cyano-1-(2, 6-dichloro-4-trifluoromethylphenyl)-4-trifluoromethylthiopyrazole A dichloromethane solution of trifluoromethyl sulfide (10.8g) was added dropwise to a methylene chloride solution containing 20g of the preceding product within 1h. Stir overnight at room temperature, wash, dry, filter, desolvate to obtain 26.3g of solid, recrystallize to obtain the product with 92% yield. Under the stirring of the synthesis of fipronil, the dichloromethane solution of 10g of the previous product was treated with 4.5g m-chloroperoxybenzoic acid. After stirring overnight, 2 parts of 1.6g m-chloroperoxybenzoic acid were added and placed for 2 days. Diluted with ethyl acetate, washed with sodium sulfite solution, sodium carbonate solution and water in turn, dried, filtered, desoluted, eluted and purified with dichloromethane on SiO2 chromatographic column to obtain fipronil 6.0g with 57.8% yield. Please refer to the synthesis of a new insecticidal type-fipronil, Issue 3 of Pesticide Magazine 2002. |
| Product name | Fipronil |
| Content | 97%TC;80%WDG;20%SC |
| Appearance | Light yellow to offwhite powder |
| Standard | Purity ≥97.0% Loss on drying≤1.0% PH 4.0-8.0 5.4 Acetong Insoluble ≤0.5max |
| Usage | It can be used in rice, cotton, vegetables, soybeans, rape, tobacco, potatoes, tea, sorghum, corn, fruit trees, forests, public health, animal husbandry, etc. to control rice borers, brown planthoppers, rice weevils, cotton bollworms, armyworms, and small vegetables. Moths, cabbage caterpillars, cabbage armyworms, beetles, root cutters, bulb nematodes, caterpillars, fruit tree mosquitoes, wheat aphids, coccidia, trichomonas, etc. |
Fipronil is a broad-spectrum Insecticide that belongs to the phenylpyrazole chemical family.It is widely used insecticide.Because of its effectiveness on a large number of pests, fipronil is used as the active ingredient in flea control products for pets and home roach traps as well as field pest control for corn, golf courses, and commercial turf. But it has no Toxicity against mammals.
Mainly used in rice, sugar cane, potatoes and other crops, animal health is mainly used to kill cats and dogs on fleas and lice and other parasites
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.