Polyvinylpyrrolidone Raw Powder 557-04-0

Polyvinylpyrrolidone Raw Powder 557-04-0

Contact : Mr.Thyen------------------------------- Email us at zhangyinglong@ycphar.com Whatsapp : +86 180 3817 6818

Product Details

Polyvinylpyrrolidone Raw Powder 557-04-0

Contact : Mr.Thyen

Email us at zhangyinglong@ycphar.com

Whatsapp : +86 180 3817 6818



Product Description:

Product NameMagnesium Stearate
CAS No.557-04-0
EINECS NO209-150-3
Molecular FormulaC36H70MgO4,2(C18H35O2).Mg
Molecular Weight591.24
Melting point200 °C(lit.)
AppearanceWhite fine powder
GradePharmaceutical Grade
ApplicationStabilizing agent,lubricant


1.Magnesium stearate is a soap,consisting of salt containing two equivalents of stearate (the anion of stearic acid) and one magnesium cation (Mg2+). Magnesium stearate is a white, water-insoluble powder. Its applications exploit its softness, insolubility in many solvents, and low toxicity. It is used as a release agent and as a component or lubricant in the production of pharmaceuticals and cosmetics.

2.Magnesium Stearate is a popular lubricant because it also acts as a glidant and anti-adherent.Magnesium stearate is often used as an anti-adherent in the manufacture of medical tablets, capsules and powders.In this regard, the substance is also useful, because it has lubricating properties, preventing ingredients from sticking to manufacturing equipment during the compression of chemical powders into solid tablets; magnesium stearate is the most commonly used lubricant for tablets.Magnesium stearate can also be used efficiently in dry coating processes.

3.Magnesium stearate is used in the pharmaceutical drugs in order to bind tablets and make them smooth as well as shinier. Magnesium stearate has been graded to be a safe chemical compound, with no side effects known. Several foods use magnesium stearate as an additive or preservative.


4.Magnesium stearate (also known as octadecanoic acid) is a white magnesium salt that is solid at room temperature. It has the chemical formula C36H70MgO4. It is a salt containing two equivalents of stearate (the anion of stearic acid) and one magnesium cation (Mg2+). Stearic acid is a saturated 18 carbon chain fatty acid that is frequently found in meats as well as plant foods. The highest-quality vegetable based magnesium stearate we use in some of our formulations contains 92%-97% stearate with trace amounts of palmitate, a saturated 16-carbon chain fatty acid frequently found in foods. Due to its high stability it is unlikely that the body absorbs any of the magnesium stearate in a supplement formulation. Stearic acid itself, In supplement dosage forms, is used as an emulsifying agent, solubilizing agent, tablet and capsule lubricant.

5.Magnesium stearate melts at about 88°C, is not soluble in water, and is generally considered safe for human consumption (GRAS). Because it is widely regarded as harmless, it is often used as a filling agent in the manufacture of nutritional and pharmaceutical formulations. Magnesium Stearate serves as an efficient lubricant for mold release purposes during tabletting processes. Its hydrophobic (i.e., water-repelling) properties prevent finished products from absorbing water and improve flowability during capsule filling.

6.Magnesium stearate is typically used in a concentration range of 0.25%-2%. Higher values can result in decreased absorption of the product. We consequently limit magnesium stearate concentrations in our formulations to 1% or less.

7.Whenever possible, we encourage our manufacturers instead to utilize silica and magnesium trisilicate at slightly higher levels in order to obtain the necessary lubricating/glidant effects. In most capsule formulations this works well.

8.However, in tablet manufacture it is generally necessary to use magnesium stearate at the 1% concentration in order to enable tablet release from molds. In a few cases where an encapsulated product is greatly hydroscopic (i.e., water-absorbing) (such as l-carnosine and acetyl-l-carnitine), it is necessary to utilize up to 1% magnesium stearate in order to block excess moisture uptake leading to poor or uneven capsule filling.




Our advantages:

1, High quality with competitive price: 
1)Standard: 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. 
 
3, We have clients throughout the world.
1)Professional service and rich experience make customers feel at ease, adequate stock and fast delivery meet their desire. 
2)Market feedback and goods feedback will be appreciated, meeting customers's requirement is our responsibility.
3) High quality, competitive price, fast delivery, first-class service gain the trust and praise from the customers. 

Q1: Have your Product Quality been Approved by Third Party Lab?
A: Yes, All products are strictly tested by our QC, confirmed by QA and approved by third party lab in China, USA, Canada, Germany, UK, Italy, France etc. So you will be assured with Good Quality if you choose us. 
 
Q2:How do you treat quality complaint?
A:First of all, our QC department will do strict examination of our export products by HPLC, UV, GC , TLC and so on in order to reduce the quality problem to near zero. If there is a real quality problem ,  caused by us, we will send you free goods for replacement or refund your loss.
 
Q3: Do you Accept Sample Order?
A: Yes, we accept small order from 10g, 100g and 1kg for your evaluation quality of our goods.

Q4: Is there any discount?
A: Yes, for larger quantity, we always support with better price. 

Q5:Do you accept VISA business credit card ?
A:Sorry we don't accept VISA credit card,
We'd like to accept bank transfer, Western Union or Paypal or Moneygram
 
Q6:How long does it take to the goods arrived ?
A:It is Depending on your location,
 For small order, please expect 5-7 days by DHL,UPS,TNT, FEDEX, EMS.
For mass order, please allow 5-8 days by Air, 20-35 days by Sea.

Q7. Do  you  have  any  reshipment  policy ?  
we have good after-sale service and re-shipment policy if the parcel  lose
Our long association with  our clients has brought great benefits
We always take the upmost care in the packaging of our products 
our clients will confirm this as even they struggle to find them without help at times.
But in spite of our best efforts it is still possible  will seize a small number of packages.
In this circumstance we promise reship free  to establish  long term relationship
 
Q8 :Can I get a sample?
A: Of course. For most products we can provide you a free sample, while the shipping cost should undertake by your side.


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