Appearance : White powder
Specific Optical Rotation (c=0.5,10% HAc) :-50.0~-60.0°
Water Content(Karl Fischer) : ≤5.0%
Acetate Content(by HPLC) : ≤15.0%
Amino Acid Composition : ±10% of theoretical
Purity (by HPLC) :≥98.0%
Single Impurity(by HPLC) :≤1.0%
Peptide Content(by %N) : ≥80%
Assay(By Anhydrous, Acetic Acid-free ) :95.0~105.0%
Bacterial Endotoxins : ≤5EU/mg
Storage/Stability: Stored at -20 °C if preferred. Storage in frost-free freezers is not recommended.
Note:This product is furnished for LABORATORY RESEARCH USE ONLY. Not for diagnostic or
Follistatin 315 (FST 315 ) Description:
Follistatin is a single-chain gonadal protein that specifically inhibits follicle-stimulating hormone release.
The single FST gene encodes two isoforms, FST317 and FST344 containing 317 and 344 amino acids respectively, resulting from alternative splicing of the precursor mRNA.
In a study in which 37 candidate genes were tested for linkage and association with polycystic ovary syndrome (PCOS) or hyperandrogenemia in 150 families, evidence was found for linkage between PCOS and follistatin.
Follistatin 315 (FST 315 ) Function:
Follistatin 315 primary function is the binding and bioneutralization of members of the TGF-β superfamily, with a particular focus on activin, a paracrine hormone.
Store at +4°C or at -20°C if preferred. Storage in frost-free freezers is not recommended. This product should be stored undiluted. Avoid repeated freezing and thawing as this may denature the antibody. Should this product contain a precipitate we recommend microcentrifugation before use.
1.We have stock so we can delivery quickly at the very day when receive the payment.
2.Best price, first class service, high successful delivery rate. A discount would be given when you make a large order.
3.High quality guarenteed, once any problem is found, the package would be reshipped for you
4.Shipping by express (FedEx,UPS,DHL,EMS TNT HKEMS), by air . The most professional forwarder would be recommanded for you.
5 . Warm aftersale service for you 24/7 . Any of your question would be solved for the first as soon as possible . Adhering to the principle of customer first conviction . we will provide the best and the most sincere services as possible as we can.
1. Sent out in 24hours once payment comfirm.
2. Professional agent make sure our ship fastly and safety
3.Offer your tracking number to you once we get it ,in order to facilitate you track the express
1.How about parcel delivery success rate ?
Our goods packing will not contain any hormone information and can be sent out from different areas of china. At present,the goods customs clearance rate we send to United states and Europe is 99%. As for Canada, Brazil of quite high buckle close rate area, we also have a new way to get through the customs. We also have completely re-send policy to some areas.
2.What is The Minimum And Maximum Amount Of Steroid Powder I Can Order At One Time?
Normally, our min.order quantity is 10g,please feel free to contact us about the specific order.
We suggest the net weight of each package should be less than 3.5kg. But if your order quantity is more than 3.5 kg, we will split the goods into several packages and then send you separately.
3.Do You Ship Over The Weekend?
We use EMS,TNT,FEDEX,DHL four kinds of couriers. EMS don't collected parcels over the weekend. The packages can be shipped out normally before 12:00 a.m in Beijing time if you choose to ship by TNT or FedEx.