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Specifications

11b,17a,21-Trihydroxypregn-4-ene-3,20-dione; 17-Hydroxycorticosterone
Catalog #	C7904-05
Applications	Suitable for use as an antigen in immunological protocols.
	Other applications have not been tested.
Recommended Dilutions
	Optimal dilutions to be determined by the researcher.
Storage and Stability	Lyophilized powder can be stored dessicated at 4°C. Lyophilized product is stable for 12 months at 4°C. Cortisol solutions are best made fresh daily; however a standard stock solution of cortisol can be prepared in ethanol and single-use aliquots of stock solution can be stored at -20°C for several weeks.
CAS Number	50-23-7
Molecular Weight	362.5
Source	Human
Purity	98% by HPLC
Form	Supplied as a lyophilized powder. Reconstitute with ethanol to 1mg/ml.
Important Note	This product as supplied is intended for research use only, not for use in human, therapeutic or diagnostic applications without the expressed written authorization of United States Biological.