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Degarelix

CAS No.
214766-78-6
Chemical Name:
Degarelix
Synonyms
Degarelix acetate;FirMagon;Dikarek;DEGARELIX;Degarelix-d7;Peptides Acetate;Degarelix impurity;DEGARELIX USP/EP/BP;Degarelix acetate salt;Degarelix, Degarelix acetate
CBNumber:
CB52448443
Molecular Formula:
C82H103ClN18O16
Molecular Weight:
1632.26
MDL Number:
MFCD05860888
MOL File:
214766-78-6.mol
Last updated:2025-09-20 20:09:13
Product description Number Pack Size Price
Degarelix D495465 1mg $115
Degarelix D495465 2.5mg $250
Degarelix 99.92% CS-5350 10mg $300
Degarelix acetate salt FD110099 5mg $300
Degarelix acetate salt FD110099 1mg $150
More product size

Degarelix Properties

Density 1.325±0.06 g/cm3(Predicted)
storage temp. Keep in dark place,Inert atmosphere,Store in freezer, under -20°C
solubility DMSO:10.0(Max Conc. mg/mL);6.13(Max Conc. mM)
H2O:25.0(Max Conc. mg/mL);15.32(Max Conc. mM)
pka 10.38±0.40(Predicted)
form Solid
color White to off-white
Sequence Ac-D-2-Nal-D-4-Cl-Phe-D-3-Pal-Ser-4-Aph(Hor)-4-D-Aph(Cbm)-Leu-Lys(ipr)-Pro-D-Ala-NH2
InChIKey MEUCPCLKGZSHTA-XYAYPHGZSA-N
NCI Dictionary of Cancer Terms degarelix acetate; Firmagon
FDA UNII SX0XJI3A11
NCI Drug Dictionary degarelix
ATC code L02BX02

Pharmacokinetic data

Protein binding 90%
Excreted unchanged in urine 20-30%
Volume of distribution 1(L/kg)
Biological half-life 43-53 days (28 after 80 mg maintenance dose) / -

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS08
Signal word  Danger
Hazard statements  H360
Hazardous Substances Data 214766-78-6(Hazardous Substances Data)

Degarelix price

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TRC D495465 Degarelix 214766-78-6 1mg $115 2021-12-16 Buy
TRC D495465 Degarelix 214766-78-6 2.5mg $250 2021-12-16 Buy
ChemScene CS-5350 Degarelix 99.92% 214766-78-6 10mg $300 2021-12-16 Buy
Biosynth Carbosynth FD110099 Degarelix acetate salt 214766-78-6 5mg $300 2021-12-16 Buy
Biosynth Carbosynth FD110099 Degarelix acetate salt 214766-78-6 1mg $150 2021-12-16 Buy
Product number Packaging Price Buy
D495465 1mg $115 Buy
D495465 2.5mg $250 Buy
CS-5350 10mg $300 Buy
FD110099 5mg $300 Buy
FD110099 1mg $150 Buy

Degarelix Chemical Properties,Uses,Production

Description

Antagonists of GnRH have proven to be an effective therapy for hormonally regulated cancers, such as prostate and some types of breast. As analogs of GnRH, they bind competitively and reversibly to GnRH receptors in the pituitary gland, thereby blocking the release of luteinizing hormone (LH) and follicle-stimulating hormone (FSH). In men, the reduction of LH triggers the ablation of testosterone secretion from the testes, and these castration-like levels have been essential in the effective management of advanced prostate cancer. In comparison to GnRH agonists, antagonists do not suffer from a potential flare of the disease as a result of an initial stimulation of the hypothalamic-pituitary-gonadal axis prior to down-regulation of the GnRH receptor. Moreover, GnRH antagonists provide beneficial effects more rapidly postdosing and result in a more efficient suppression of gonadotropin levels. With this in mind, degarelix acetate has been launched as a third-generation GnRH antagonist for the treatment of prostate cancer, and it joins other third-generation agents, ganirelix and cetronelix, on the market.

Originator

Ferring Pharmaceutical (Switzerland)

Uses

Advanced hormone-dependent prostate carcinoma

Uses

Degarelix, is a competitive and reversible gonadotropin-releasing hormone receptor (GnRHR) antagonist.

Definition

ChEBI: Degarelix is a polypeptide.

brand name

Firmagon

Clinical Use

Ferring launched degarelix acetate, a gonadotrophin-releasing hormone (GnRH) antagonist, in 2009 in the U.S. for the treatment of prostate cancer. The compound has been approved by the E.U. for the same indication, and in the same year it was launched in the UK and Germany. Degarelix has been developed as a one-month or three-month sustained-release injectable formulation. Compared to other GnRH antagonists, degarelix displays improved aqueous solubility, longer acting effects and weaker histamine-releasing properties.

Side effects

The most common adverse events included injection site reactions (pain, erythema, swelling, or induration), hot flashes, increased weight, and increases in serum levels of transaminases and gamma-glutamyltransferase. In addition to being contraindicated in patients with a previous hypersensitivity to degarelix, it should not be administered to women who are or may become pregnant as fetal harm can occur. Since long-term androgen deprivation therapy prolongs the QT interval, physicians should consider whether the benefits of degarelix outweigh the potential risks in patients with congenital long QT syndrome, electrolyte abnormalities, or congestive heart failure or in patients taking antiarrhythmic medications.

Synthesis

The synthesis of degarelix acetate employed iterative peptide coupling and protection/de-protection sequences in high yields (85¨C99%), and this sequence is described in the scheme. Boc-D-alanine (21) was immobilized via MBHA resin (Bachem) by reaction with diisopropyl carbodiimide (DIC) and 1-hydroxybenzotriazole (HOBT). The resulting product was treated with trifluoroacetic acid (TFA) to remove the N-Boc protecting group to reveal amine 22. The N-terminus of 22 was then subjected to sequential coupling and de-protection cycles with the following protected amino acids: N-Boc-L-proline, N-a- Boc-N6-isopropyl-N6-carbobenzoxy-L-lysine and N-Boc-L-leucine to give 23 and 24, respectively. The N-terminus of 24 was coupled with N-a-Boc-D-4-(Fmoc-amino)phenylalanine, followed by removal of the Fmoc group with piperidine in DMF to give the corresponding free aniline. The free aniline resin was then reacted with t-butyl isocyanate to generate the corresponding t-butyl urea followed by reaction with TFA to remove the Boc group to give the t-butyl urea amine 25. The N-terminus of 25 was coupled with N-a-Boc-L-4-(Fmoc-amino)phenylalanine, followed by removal of the Fmoc group with piperidine in DMF to generate the corresponding free aniline. The free aniline was reacted with L-hydroorotic acid, followed by reaction with TFA to liberate amine 26. Amine 26 was then coupled with O-benzylated-N-Boc-serine, followed by removal of the Boc group with TFA and reacting the resulting amine with N-a-Boc-D-(3-pyridyl)alanine and subsequent removal of the Boc group with TFA gave amine 27. Amine 27 was coupled with N-Boc-D-(4-chlorophenyl)alanine, followed by removal of the Boc group with TFA, and the resulting amine was then coupled with N-Boc-D-(2-naphthyl)alanine, followed by removal of its Boc group with TFA to give 28. Acylation of 28 with acetic anhydride followed by sequential treatment with HF and TFA resulted in cleavage from the resin, removal of the O-benzyl group, and conversion of the t-butyl urea to the corresponding NH2-urea, resulting in free degarelix. Finally, treatment with acetic acid provided degarelix acetate (V).

Synthesis_214766-78-6

Metabolism

Undergoes peptide hydrolysis in the hepato-biliary system, and is mainly (70-80%) excreted as peptide fragments in the faeces.

Degarelix Preparation Products And Raw materials

Raw materials

Preparation Products

Global( 267)Suppliers
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AFINE CHEMICALS LIMITED
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View Lastest Price from Degarelix manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
DEGARELIX pictures 2025-12-02 DEGARELIX
214766-78-6
0.99 RongNa Biotechnology Co.,Ltd
Degarelix pictures 2025-12-02 Degarelix
214766-78-6
US $0.00 / g 1g 98%min 1000g WUHAN FORTUNA CHEMICAL CO., LTD
Degarelix pictures 2025-12-02 Degarelix
214766-78-6
US $0.00-0.00 / g 1g 99% 1kg Xi an Biohorlden Industry Trade Co Ltd
  • DEGARELIX pictures
  • DEGARELIX
    214766-78-6
  • 0.99
  • RongNa Biotechnology Co.,Ltd
  • Degarelix pictures
  • Degarelix
    214766-78-6
  • US $0.00 / g
  • 98%min
  • WUHAN FORTUNA CHEMICAL CO., LTD
  • Degarelix pictures
  • Degarelix
    214766-78-6
  • US $0.00-0.00 / g
  • 99%
  • Xi an Biohorlden Industry Trade Co Ltd
DEGARELIX N-Acetyl-3-(2-naphthyl)-D-alanyl-4-chloro-D-phenylalanyl-3-(3-pyridyl)-D-alanyl-L-seryl-4-[2,6-dioxohexahydropyrimidin-4(S)-ylcarboxamido]-L-phenylalanyl-4-ureido-D-phenylalanyl-L-leucyl-N6-isopropyl-L-lysyl-L-prolyl-D-alaninamide acetate D-Alaninamide, N-acetyl-3-(naphtalen-2-yl)-D-alanyl-4-chloro-D-phenylalanyl-3-(pyridin-3-yl)-D-alanyl-L-seryl-4-((((4S)-2,6-dioxohexahydropyrimidin-4-yl)carbonyl)amino)-L-phenylalanyl-4-(carbamoylamino)-D-phenylalanyl-L-leucyl-N6-(1-methylethyl)-L-lysyl-L-prolyl- Degarelix acetate(FE-200486,Degarelix) Degarelix, Degarelix acetate Degarelix acetate salt D-Alaninamide,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-ly D-Alaninamide, 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- Degarelix impurity DEGARELIX USP/EP/BP Degarelix-d7 Degarelix acetate FirMagon Dikarek Peptides Acetate D7-Degarelix Trifluoroacetate 214766-78-6 217466-78-6 C82H103ClN18O16C2H4O2 C82H103N18O16Cl C82H103ClN18O16 API