The recommended long-term storage temperature for this product is at 2 - 8 °C. However, this product ships at ambient temperature and is stable for short periods without refrigeration.
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Produktname
Dexamethason, ≥98% (HPLC), powder
InChI key
UREBDLICKHMUKA-CXSFZGCWSA-N
InChI
1S/C22H29FO5/c1-12-8-16-15-5-4-13-9-14(25)6-7-19(13,2)21(15,23)17(26)10-20(16,3)22(12,28)18(27)11-24/h6-7,9,12,15-17,24,26,28H,4-5,8,10-11H2,1-3H3/t12-,15+,16+,17+,19+,20+,21+,22+/m1/s1
SMILES string
C[C@@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@]4(C)[C@@]3(F)[C@@H](O)C[C@]2(C)[C@@]1(O)C(=O)CO
assay
≥98% (HPLC)
form
powder
color
off-white
Quality Level
Gene Information
human ... ABCB1(5243), CYP3A4(1576), IL4(3565), IL5(3567), NR3C1(2908)
mouse ... Abcb1a(18671), Abcb1b(18669), Ifng(15978), Nos2(18126), Ptgs2(19225), Tnf(21926)
rat ... Ar(24208), Nr3c1(24413), Tnf(24835)
mp
262-264 °C (lit.)
solubility
methanol: 25 mg/mL
originator
Merck & Co., Inc., Kenilworth, NJ, U.S.
storage temp.
2-8°C
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Dieser Artikel | |||
|---|---|---|---|
| assay ≥98% (HPLC) | assay 97.0-102.0% | assay ≥97% | assay 99.6% |
| form powder | form solid | form powder | form solid |
| Quality Level 200 | Quality Level 200 | Quality Level 200 | Quality Level 100 |
| storage temp. 2-8°C | storage temp. 2-8°C | storage temp. 2-8°C | storage temp. - |
| solubility methanol: 25 mg/mL | solubility - | solubility methanol: 25 mg/mL | solubility water: soluble 10mg/100 ml at 25 °C, acetone: very slightly soluble, alcohol: very slightly soluble, chloroform: slightly soluble, diethyl ether: very slightly soluble, dioxane: very slightly soluble, methanol: very slightly soluble |
| originator Merck & Co., Inc., Kenilworth, NJ, U.S. | originator - | originator - | originator - |
General description
Application
- in Kulturmedien, um die Differenzierung von aus Fettgewebe gewonnenen Stammzellen in osteogenes Gewebe zu induzieren[1]
- als Komponente von Adipozyten-Differenzierungsmedium[2]
- zur In-vitro-Stimulation der primären normalen menschlichen Epithelzellen (NHBE) und der glatten Atemwegsmuskulatur (ASM)[3]
Biochem/physiol Actions
Features and Benefits
Packaging
Preparation Note
signalword
Danger
hcodes
Hazard Classifications
Repr. 1B
Lagerklasse
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Faceshields, Gloves
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Bioactive small molecules for immune system signaling target identification/validation and antibiotics, antivirals, and antifungals offered.
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is it ok to store the powder at room temperature?
1 answer-
Helpful?
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We plan dissolve it in DMSO and use for experiment (Inject to Mice via IM way), so Which is the appropriate concentration of DMSO?
1 answer-
Dexamethasone is soluble in 100% DMSO at a concentration of 25 mg/mL.
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Is it okay to freeze and store the solution mixed with a vehicle such as 2-hydroxypropyl-β-cyclodextrin for a long time, and melt and freeze repeatedly?
1 answer-
Solutions prepared in 2-hydroxypropyl-β-cyclodextrin may be stored in aliquots at -20ºC. Avoid repeated freeze/thaw cycles. Note that product D2915 is a prepared powder mixture of Dexamethason and 2-hydroxypropyl-β-cyclodextrin. This product is soluble at 25 mg/ml in water. Please see the link below to review additional water-soluble product options:
https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/product/documents/218/859/e8014inf.pdfPlease see the following link to review (2-Hydroxypropyl)-β-cyclodextrin product options:
https://www.sigmaaldrich.com/substance/2hydroxypropylbcyclodextrin12345128446355Helpful?
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Please can someone confirm if this is also soluble in DMSO? I have seen other people dissolve dexamethasone like this, but with a different brand
1 answer-
Dexamethasone is soluble in DMSO (25 mg/ml), chloroform or Ethanol.
Helpful?
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What is Product D1756, Dexamethasone, soluble in?
1 answer-
Dexamethasone is practically insoluble in water. It is soluble in ethanol, methanol, acetone, dioxane, and slightly soluble in chloroform. Sigma routinely tests the solubility at 50 mg/mL in ethanol with heat, yielding a clear, colorless to faint yellow solution. However, dexamethasone will precipitate out of solution as the temperature returns to room temperature. At 25 mg/mL in methanol or ethanol, a clear colorless solution is obtained without heating. The solubility of dexamethasone in DMSO is 606 mg/mL at 25°C.
Helpful?
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Is Product D1756, Dexamethasone, suitable for cell culture?
1 answer-
This product has not been tested for cell culture. Please consider either Product No. D8893 or D4902, both of which are cell culture tested.
Helpful?
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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.
Helpful?
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What is the solution stability of Product D1756, Dexamethasone?
1 answer-
Aqueous solutions of dexamethasone are stable for at least 30 days at 4°C. A stock solution at a concentration of 1mg/mL in absolute ethanol can be diluted 1:50 with sterile media and stored frozen as working aliquots.
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