67471 Hydrocortisone acetate - AK Scientific
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  Catalog ID # 67471
Hydrocortisone acetate
, 98% (HPLC)
4-Pregnene-11?,17a,21-triol-3,20-dione 21-acetate
Hydrocortisone 21-acetate
Cortisol acetate
Cortisol 21-acetate

CAS Registry #:[50-03-3]
MDL Number:MFCD00037714
Purity:98% (HPLC)
Available Spectra:LCMS, HPLC
Physical Form:White powder
Melting Point:220-225°C
Optical Rotation:+166 ° (c=0.4, Dioxane)
Shipping:Not Regulated for Shipping.



 Hydrocortisone binds to the cytosolic glucocorticoid receptor. After binding the receptor the newly formed receptor-ligand complex translocates itself into the cell nucleus, where it binds to many glucocorticoid response elements (GRE) in the promoter region of the target genes. The DNA bound receptor then interacts with basic transcription factors, causing the increase in expression of specific target genes. The anti-inflammatory actions of corticosteroids are thought to involve lipocortins, phospholipase A2 inhibitory proteins which, through inhibition arachidonic acid, control the biosynthesis of prostaglandins and leukotrienes. Specifically glucocorticoids induce lipocortin-1 (annexin-1) synthesis, which then binds to cell membranes preventing the phospholipase A2 from coming into contact with its substrate arachidonic acid. This leads to diminished eicosanoid production. The cyclooxygenase (both COX-1 and COX-2) expression is also suppressed, potentiating the effect. In other words, the two main products in inflammation Prostaglandins and Leukotrienes are inhibited by the action of Glucocorticoids. Glucocorticoids also stimulate the lipocortin-1 escaping to the extracellular space, where it binds to the leukocyte membrane receptors and inhibits various inflammatory events: epithelial adhesion, emigration, chemotaxis, phagocytosis, respiratory burst and the release of various inflammatory mediators (lysosomal enzymes, cytokines, tissue plasminogen activator, chemokines etc.) from neutrophils, macrophages and mastocytes. Additionally the immune system is suppressed by corticosteroids due to a decrease in the function of the lymphatic system, a reduction in immunoglobulin and complement concentrations, the precipitation of lymphocytopenia, and interference with antigen-antibody binding.

[1]de Weerth C, Zijl RH, Buitelaar JK: Development of cortisol circadian rhythm in infancy. Early Hum Dev. 2003 Aug;73(1-2):39-52.
[2] Palacios R, Sugawara I: Hydrocortisone abrogates proliferation of T cells in autologous mixed lymphocyte reaction by rendering the interleukin-2 Producer T cells unresponsive to interleukin-1 and unable to synthesize the T-cell growth factor. Scand J Immunol. 1982 Jan;15(1):25-31.
[3] KNIGHT RP Jr, KORNFELD DS, GLASER GH, BONDY PK: Effects of intravenous hydrocortisone on electrolytes of serum and urine in man. J Clin Endocrinol Metab. 1955 Feb;15(2):176-81.

Risk Description(s)
R63:Possible risk of harm to the unborn child.

Safety Description(s)
S36/37:Wear suitable protective clothing and gloves.

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CURRENT AS OF: March 31, 2015
1. In Stock: Order today by 4 PM PT and ships today from San Francisco, CA, USA
2. Backordered: Please contact us for availability.
3. If Bulk (kg) is Backordered, sizes less than 1kg may be available.
4. All prices FOB San Francisco, CA, USA
HazMat shipping information is based on IATA/DOT regulations. For reference only.
1. Not Required: Not regulated by IATA/DOT. Normal shipping for Ground and Express.
2. Required for Express: HazMat shipping via Express. Normal shipping for continental Ground.




 APIs and Bioactives > Steroid Hormones