Business Type:Trading Company
Product Certification&
Enterprise Certification
Country: China (Mainland)
Business Type:Trading Company
CAS NO.171596-29-5
high purity(1-15)Kilogramhigh purity(15-30)Kilogram
1: Fast and guaranteed shipment (TNT;EMS;FEDEX;DHL;UPS;EUB, special line)
2: Various payment terms accepted (Btc;MoneyGram;WU)
3: Valued package (Paraffin coating; Double aluminum foil bag; Vacuum packaging)
4: Efficient delivery (3-10 DAYS fast delivery service )
5: Best quality (Without any doping, all the products are pure)
6: Good reputation (we have been in this industry for years, earned great trust from our clients from allover the world)
7: Huge Capacity (We have plenty manufactue centers, each day can produce tons of various products)
8: The most competitive price (manufacture and produce by our own factories).
9. In the end, we have the most professional experienced and dedicated team here.
10.Fast, secure and concealed delivery
Quick Details
Tadalafil is one of the two new PDE5 inhibitors launched for the oral treatment of male erectile dysfunction. Tadalafil is a b-carboline derivative and it is structurally distinct from vardenafil (Levitraw) and sildenafil (Viagraw), both of which are PDE5 inhibitors based on a fused pyrimidine core structure. Tadalafil is synthesized in three steps starting from D-tryptophan methyl ester, by first condensing with piperonal in a Pictet-Spengler cyclization reaction to form the tetrahydro-β-carboline derivative, which is followed by chloroacetylation of the piperidine ring nitrogen and cyclization with methylamine.
Tadalafil is metabolised in the liver mainly by the cytochrome P450 isoenzyme CYP3A4. The major metabolite, the methylcatechol glucuronide, is inactive. Tadalafil is excreted, mainly as metabolites, in the faeces (61% of the dose), and to a lesser extent the urine (36% of the dose).
Packaging & Delivery
Packaging Detail: customized
Payment Term: T/T or L/C, D/P, DIA, WU, MG
Delivery Detail: Usually within 3-5 working days after full payment Shipping: EMS, DHL, TNT, UPS, FEDEX, BY AIR, BY SEA
Our Company
Hebei Youze Biological Technology Co., Ltd. has a registered capital of 1 million yuan and is one of the most dynamic foreign trade companies in the Chinese market. We have a pharmaceutical raw material production plant and a reagent R&D center. We now have the most complete product line. In addition, we have developed and produced tens of thousands of reagents. We also have the business of custom synthesis of various organic compounds as a supplement. We can synthesize almost all chemicals. Our goal is to survive by quality and develop by credit.
In the past two years, our products have spread over more than 30 countries in the world, Europe, South America, North America, Southeast Asia and Africa. We work with friends all over the world to develop the best quality products, the most reasonable prices and safe and effective transportation. Product can be ordered from milligrams to tons. Meet the purchase of new and old customers. We will not let you down.