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Merck
CN

SML2919

Abarelix acetate

Synonym(s):

N-Ac-D-Nal-4-Cl-D-Phe-D-Pal-Ser-N-Me-Tyr-D-Asn-Leu-Lys(iPr)-Pro-D-Ala-NH2, acetate salt, N-Ac-DNal-DCpa-DPal-Ser-Nα-Me-Tyr-DAsn-Leu-ILys-Pro-DAla-NH2, acetate salt, N-Acetyl-3-(2-naphthalenyl)-D-alanyl-4-chloro-D-phenylalanyl-3-(3-pyridinyl)-D-alanyl-L-seryl-N-methyl-L-tyrosyl-D-asparaginyl-L-leucyl-N6-(1-methylethyl)-L-lysyl-L-prolyl-D-alaninamide, acetate salt, PPI 149 acetate, PPI-149 acetate, PPI149 acetate, R 3827 acetate, R-3827 acetate, R3827 acetate

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About This Item

Empirical Formula (Hill Notation):
C72H95ClN14O14 · xC2H4O2
CAS Number:
785804-17-3
Molecular Weight:
1416.06 (free base basis)
UNSPSC Code:
12352200
NACRES:
NA.77

Key Documents

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Assay

≥97% (HPLC)

Quality Level

100

form

film or powder

color

white to beige

storage temp.

−20°C

Biochem/physiol Actions

Abarelix (PPI-149) is a gonadotropin releasing hormone (GnRH)/luteinizing hormone releasing hormone (LHRH) receptor (GnRHR, LHRHR) antagonist with low histamine release induction propensity (EC50 = 100 μg/mL; rat mast cells). Abarelix exhibits good in vivo efficacy via iv. or sc. in suppressing LH levels in castrated male rats (plasma LH = 12/1.2/0.9/1.2 ng/mL 6 hrs post 0/12.5/50/200 μg/kg in 5% mannitol sc.) and in lowering testosterone among intact male rats (plasma testosterone = 1.64/0.29 ng/mL 6 hrs post 0/3 μg/kg sc.).
Gonadotropin releasing hormone (GnRH)/ luteinizing hormone releasing hormone (LHRH) receptor (GnRHR, LHRHR) antagonist.

Pictograms

Health hazard
GHS08

Signal Word

Warning

Hazard Statements

H361d

Hazard Classifications

Repr. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Regulatory Information

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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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