Product F2293-1VL 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 F2293, 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 F2293 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.
추천 제품
생물학적 소스
Porcine
양식
powder
포장
pkg of 50 unit per vial
기술
cell culture | mammalian: suitable
solubility
H2O: soluble 50 mg/mL
저장 온도
2-8°C
InChI
1S/C79H125N19O23S/c1-39(2)34-53(90-67(110)51(27-29-57(102)103)87-66(109)49(20-14-15-31-80)86-70(113)54(35-45-18-12-11-13-19-45)92-76(119)63(43(9)99)96-65(108)48(81)38-122)72(115)93-60(40(3)4)75(118)91-55(36-46-23-25-47(101)26-24-46)71(114)88-52(28-30-58(104)105)69(112)97-64(44(10)100)77(120)94-61(41(5)6)74(117)89-50(21-16-32-84-79(82)83)68(111)95-62(42(7)8)78(121)98-33-17-22-56(98)73(116)85-37-59(106)107/h11-13,18-19,23-26,39-44,48-56,60-64,99-101,122H,14-17,20-22,27-38,80-81H2,1-10H3,(H,85,116)(H,86,113)(H,87,109)(H,88,114)(H,89,117)(H,90,110)(H,91,118)(H,92,119)(H,93,115)(H,94,120)(H,95,111)(H,96,108)(H,97,112)(H,102,103)(H,104,105)(H,106,107)(H4,82,83,84)/t43-,44-,48+,49+,50+,51+,52+,53+,54+,55+,56+,60+,61+,62+,63+,64+/m1/s1
InChI key
RPJRYFRWJUYJGY-AYWRSWFDSA-N
유전자 정보
human ... FSHR(2492)
pig ... FSHB(396895)
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일반 설명
애플리케이션
생화학적/생리학적 작용
기타 정보
단위 정의
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point (°F)
Not applicable
Flash Point (°C)
Not applicable
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For Product F2293, Follicle Stimulating Hormone, do you have information on reconstitution, solution storage and potency?
1 답변-
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Do you have information on the solution stability of Follicle Stimulating Hormone (FSH) from pituitary?
1 답변-
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 답변-
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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