Degarelix acetate

≥98% (HPLC)

FE 200486, ASP3550 acetate, FE200486, N-Acetyl-3-(2-naphthalenyl)-D-alanyl-4-chloro-D-phenylalanyl-3-(3-pyridinyl)-D-alanyl-L-seryl-4-[[[(4S)-hexahydro-2,6-dioxo-4-pyrimidinyl]carbonyl]amino]-L-phenylalanyl-4-[(aminocarbonyl)amino]-D-phenylalanyl-L-leucyl-N6-(1-methylethyl)-L-lysyl-L-prolyl-D-alaninamide acetate salt, Ac-D2Nal-D4Cpa-D3Pal-Ser-4Aph(L-hydroorotyl)-D4Aph(carbamoyl)-Leu-ILys-Pro-DAla-NH2 acetate salt
Empirical Formula (Hill Notation):
C82H103ClN18O16 · xC2H4O2
CAS Number:
Molecular Weight:
1632.26 (free base basis)

Quality Level


≥98% (HPLC)




white to beige

storage temp.


Inchi Code


InChI key


Biochem/physiol Actions

Degarelix acetate (FE200486) is a gonadotropin-/luteinizing hormone-/follicle-stimulating hormone-releasing hormone (GnRH, LHRH, FSH-RH) receptor antagonist that inhibits plasma testosterone for more than 40 days following a single s.c. dosage of 2 mg/kg in rats and monkeys, showing longer in vivo duration than abarelix, ganirelix, cetrorelix, azaline B or D-Trp6-LHRH, and exhibiting only weak histamine-releasing potency in isolated rat mast cells. Bi-weekly s.c. dosing (2 mg/kg) is efficacious in suppressing the growth of human prostate cancer PAC120 xenograft-derived tumors in mice in vivo.


Health hazard

Signal Word


Hazard Statements

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

G Jiang et al.
Journal of medicinal chemistry, 44(3), 453-467 (2001-07-21)
A series of antagonists of gonadotropin-releasing hormone (GnRH) of the general formula Ac-D2Nal-D4Cpa-D3Pal-Ser-4Aph/4Amf(P)-D4Aph/D4Amf(Q)-Leu-ILys-Pro-DAla-NH2 was synthesized, characterized, and screened for duration of inhibition of luteinizing hormone release in a castrated male rat assay. Selected analogues were tested in a reporter gene...
Pierre Broqua et al.
The Journal of pharmacology and experimental therapeutics, 301(1), 95-102 (2002-03-22)
We describe the pharmacological profile in rats and monkeys of degarelix (FE200486), a member of a new class of long-acting gonadotropin-releasing hormone (GnRH) antagonists. At single subcutaneous injections of 0.3 to 10 microg/kg in rats, degarelix produced a dose-dependent suppression...
Wolfgang Koechling et al.
British journal of clinical pharmacology, 70(4), 580-587 (2010-09-16)
Early studies on gonadotrophin-releasing hormone (GnRH) antagonists pointed out histamine-mediated anaphylactic reactions as a potential adverse effect of these drug candidates. In this study we have compared the histamine-releasing potential of four approved and marketed antagonists, degarelix, cetrorelix, abarelix and...

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