Wuhan Demeikai Biotechnology Co., Ltd

Sildenafil (export and research use)




* * * * * * * * * sildenafil product introduction piece of * * * * * * * * *


Sildenafil Chinese name: sildenafil.Sildenafil citrate
Sildenafil Chinese alias: sildenafil
Sildenafil English name: sildenafil citrate
English alias: sildenafil Viagra;Sidenafil citrate
Sildenafil CAS no. : 171599-83-0
Sildenafil molecular formula: C21H28N6O4S
Sildenafil molecular weight: 460
Sildenafil density: 1.447 g/cm3
Sildenafil boiling point: 698.72 ° C at 760 mmHg
Sildenafil flash point: 376.372 ° C
Sildenafil vapor pressure: 0 MMHG at 25 ° C
Sildenafil physicochemical properties:
Sildenafil appearance: white crystalline powder
Sildenafil solubility: soluble in dimethylformamide, insoluble in alcohol.
Sildenafil melting point: 190-193
Sildenafil purity: more than 99.3%

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A, the dosage of sildenafil usage:
Clinical trials, for export.Asians use 80-120 mg/day, cannot direct oral, homemade/sac goods in tablets.Based on sildenafil side effects and dosage was positively than relations, according to the individual constitution and the actual effects to adjust the dosage.Details please consult the german-american kay biological horse manager.(micro qr code as shown in figure)
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Second, the sildenafil take notice:
(1) sildenafil should be used under the guidance of a doctor.
(2) happened to strokes and heart attacks, low blood pressure or some rare genetic eye disease and pigment networks MoYan patients disabled.
(3) share, sildenafil with NO donor because existing sildenafil with NO donor share the cause of death was severe hypotension and report.
(4) has a history of severe cardiovascular disease always unfavorable to sexual activity and severe liver damage patients, disable sildenafil.
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Three, sildenafil side effects:

1, have a headache.Clinical trials found that about 1% of people appear have a headache after taking this medicine, and the bigger the doses.
2, no.About 0.3% of users have blurred vision in the brief, can appear sometimes see blue illusion.
3, fainting.Rapid drops in blood pressure may cause, such as taking drugs, often dizziness or even immediately fainted.
4, and cardiovascular disease.Impotence may be early signs of heart disease, diabetes or cancer, the drug may conceal true condition.
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* * * * * * * * * sildenafil supply company introduction piece of * * * * * * * * *


A, how to buy sildenafil powder raw material?Shipment return?
1, the company domestic customer model to the delivery, support agricultural bank, alipay, WeChat, etc.Foreign customers have a western union, moneygram, bank of communications, bank of China Hong Kong and Macao, such as HSBC, flexible payment terms.If you have stock, it's usually on the same day can be delivery;If need the goods, we will arrange the goods as soon as possible in a timely manner to the customer designated warehouse.
2, delivery.We have gravels logistics cooperation of logistics company, China railway logistics, and friends jie logistics, JiaJi logistics, datang, jinhua logistics, and logistics, winter long pass, Wu Sha logistics and other logistics company, can also be set by the customer you logistics company.Express company have YunDa express, wind express, EMS, DHL, TNT, ups, railway transportation and city car delivery.
3 and return policy
1) after the arrival of the goods please confirm the goods in good condition again sign after receiving STH, buyers carefully according to the standards of the product acceptance.If there is any product indicators, we return.
2) we will be careful to do a good job of packaging before shipment, but freight loading and unloading process packing may cause scratches, dents, if there is no product leak problem, belong to the normal situation.
3) if there is any leakage, please take photos and contact us immediately, we will cooperate to solve.


Second, how to ensure the quality of the product?
1, my company is one take the customer as the center, set the integrity of the enterprise, our products are in accordance with national standards and industry standards.If you don't trust, my company can provide samples for you to try first, big goods according to the sample quality and product acceptance standards;Such goods can provide the inspection report.
2, regular formal purchase contract.Within the contract to regulate content of product quality and after-sales.Constitutes legal effect once signed.
3, mass customization product, our company provide samples testing, after the customer approved the sample, according to the small sample standard production and acceptance testing.


Third, german-american kay is a what kind of company?


German-american kay biological technology co., LTD., wholeheartedly for the general customers to provide high-quality products and services.
German-american kay biological technology co., LTD. Has always been firmly believe that product quality is not blown out, but the practice of inspection.
German-american kay biotechnology co., LTD., based on the product itself, makes the quality as the core, customer oriented, aims to be the raw material supply chain, reliable service!!!!!