Product F4021-1VL is packaged as 50 units/vial. Each vial contains roughly 35-36 milligrams solid. Our solubility testing is done at 50 mg/mL, which yields a slightly hazy solution. It may be more convenient to use units/mL for your experiment as it will be more precise. If you decide to try to weigh out the material, please realize that small quantities can be difficult to weigh accurately.For Product F4021, FSH from human pituitary, we recommend solution storage for up to one month at 2-8°C. Unfortunately, we do not have any Sigma data regarding the stability of the porcine hormone.In the absence of information, we would recommend that solutions of Product F4021 not be frozen. If you do decide to store the product at -20°C we would suggest storing it in single use aliquots to avoid numerous freeze/thaw cycles.For the human FSH product we list an approximate activity of 7000 International Units/milligram. This should provide you with a starting point for a conversion calculation. For the porcine product we do not provide a conversion for units to mass. We provide 50 Armour units per vial. The unit definitions are also slightly different. International units are based on an international standard (IRP-68/140) while Armour units are based on Armour FSH standard G-94. According to the literature, 1 Armour unit can contain 9.4-14.2 international units.
Fortfahren mit
F4021
Follikelstimulierendes Hormon aus human pituitary
~7,000 IU/mg (powder)
Synonym(e):
FSH, Follitropin
Größe auswählen
| Größe/SKU | Verfügbarkeit | Preis |
|---|---|---|
2 μg | Warenkorb auf Verfügbarkeit prüfen | € 73,90 |
10 μg | Warenkorb auf Verfügbarkeit prüfen | € 245,00 |
25 μg | Warenkorb auf Verfügbarkeit prüfen | € 552,00 |
0.1 mg | Warenkorb auf Verfügbarkeit prüfen | € 1.880,00 |
Über diesen Artikel
biological source
human pituitary glands
Quality Segment
sterility
non-sterile
form
powder
specific activity
~7,000 IU/mg (powder)
mol wt
35 kDa
technique(s)
cell culture | mammalian: suitable
impurities
HBsAg, HCV and HIV-1/HIV-2, tested negative
pH
7.4
solubility
water: ~50 g/L
shipped in
ambient
storage temp.
−20°C
Gene Information
human ... FSHB(2488), FSHR(2492)
General description
Forschungsbereich: Zellsignalisierung
Application
Biochem/physiol Actions
Physical form
Other Notes
1 of 1
Dieser Artikel | |||
|---|---|---|---|
| description ~7,000 IU/mg (powder) | description lyophilized powder, ≥6.2 IU/mg (immunoassay, non-sterile) | description - | description affinity isolated antibody |
| biological source human pituitary glands | biological source human pituitary glands | biological source bovine pituitary glands | biological source rabbit |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| technique(s) cell culture | mammalian: suitable | technique(s) cell culture | mammalian: suitable | technique(s) cell culture | mammalian: suitable | technique(s) ELISA: 1:5000, western blot: 1:500-1:1000 |
| form powder | form lyophilized powder | form powder | form buffered aqueous solution |
| Gene Information human ... FSHB(2488), FSHR(2492) | Gene Information human ... TSHB(7252), TSHR(7253) | Gene Information cow ... TSHB(281552) | Gene Information human ... FSHR(2492) |
| solubility water: ~50 g/L | solubility - | solubility - | solubility - |
Lagerklasse
11 - Combustible Solids
Was ist los?
WGK 3
Flammpunkt (°F)
Not applicable
Flammpunkt (°C)
Not applicable
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For Product F4021, Follicle Stimulating Hormone, do you have information on reconstitution, solution storage and potency?
1 answer-
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Do you have information on the solution stability of Follicle Stimulating Hormone (FSH) from pituitary?
1 answer-
For information on the solution stability of FSH (and much more), refer to Chem. Soc. Rev., 2(4), 355-395 (1973).From page 369: "The stabilities of the most highly purified preparations of certain hormonal glycoproteins have presented some problems, e.g. follicle-stimulating hormone preparations are often found to be stable in frozen solution but lose activity dramatically on concentration and freeze drying." Based on that information, we would recommend that if you need to freeze solutions of FSH, you should flash-freeze the solution (using either liquid nitrogen or a dry ice-alcohol bath), and store the solution in the ultra-cold (-70 or -80°C) freezer. Since FSH does have some solution stability concerns, simply placing the solution in a -20°C freezer without first flash-freezing may reduce the activity.
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What is the Department of Transportation shipping information for this product?
1 answer-
Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product.
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