Cetrorelix acetate Related Compounds & Impurities

Cetrorelix Acetate is a synthetic GnRH antagonist that immediately suppresses LH surges, used to prevent premature ovulation in controlled ovarian stimulation.

Simson Pharma Limited along with its subsidiary offices Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) is a trusted manufacturer and supplier of high-quality pharmaceutical reference standards, offering a comprehensive portfolio of Cetrorelix acetate reference standards, pharmacopeial and non-pharmacopeial Cetrorelix acetate impurities, related compounds, related substances, metabolites, stable isotope-labelled compounds, deuterium labelled compounds and nitrosamine (N-NO) reference standards.

These materials support pharmaceutical research and development, product development, ANDA and DMF submissions, quality control (QC), analytical method development and validation, stability studies, impurity identification, and genotoxic impurity assessment.

Our Cetrorelix acetate-related reference standards are thoroughly characterized using advanced analytical techniques and are supplied with comprehensive Certificates of Analysis (COA) and supporting analytical data from our USFDA certified, ISO 17025 and ISO 17034 accredited Lab, to meet global regulatory expectations. EP and USP traceable reference standards can also be provided upon request, subject to availability. Simson is also a provider of EP and USP traceable standards. To ensure consistent quality and reliability, our reference standards are periodically re-tested according to established quality management procedures.

Pharmaceutical Reference Standards / Impurity Standards

Cetrorelix Acetate
Cetrorelix Acetate
  • CAT. No.C1520000
  • CAS. No.145672-81-7
  • Mol. F.C70H92ClN17O14.C2H4O2
  • Mol. W.1491.09 g/mol
  • Stock Status:Instock
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[D-Arg8]-Cetrorelix
[D-Arg8]-Cetrorelix
  • CAT. No.C1520002
  • CAS. No.NA
  • Mol. F.C70H92ClN17O14
  • Mol. W.1431.04 g/mol
  • Stock Status:Custom Synthesis
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[D-Pro9]-Cetrorelix
[D-Pro9]-Cetrorelix
  • CAT. No.C1520003
  • CAS. No.NA
  • Mol. F.C70H92ClN17O14
  • Mol. W.1431.04 g/mol
  • Stock Status:Custom Synthesis
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[D-Orn6]-Cetrorelix
[D-Orn6]-Cetrorelix
  • CAT. No.C1520004
  • CAS. No.NA
  • Mol. F.C69H91ClN16O13
  • Mol. W.1388.01 g/mol
  • Stock Status:Custom Synthesis
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[1-7]-Cetrorelix
[1-7]-Cetrorelix
  • CAT. No.C1520006
  • CAS. No.3026917-81-4
  • Mol. F.C56H67ClN10O12
  • Mol. W.1107.64 g/mol
  • Stock Status:Custom Synthesis
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[D-Ser4]-Cetrorelix
[D-Ser4]-Cetrorelix
  • CAT. No.C1520009
  • CAS. No.NA
  • Mol. F.C70H92ClN17O14
  • Mol. W.1431.04 g/mol
  • Stock Status:Custom Synthesis
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Cetrorelix Acid
Cetrorelix Acid
  • CAT. No.C1520010
  • CAS. No.NA
  • Mol. F.C70H91ClN16O15
  • Mol. W.1432.02 g/mol
  • Stock Status:Under Synthesis
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Endo-Cit-Cetrorelix
Endo-Cit-Cetrorelix
  • CAT. No.C1520011
  • CAS. No.NA
  • Mol. F.C76H103ClN20O16
  • Mol. W.1588.21 g/mol
  • Stock Status:Custom Synthesis
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Ganirelix 1-4 peptide
Ganirelix 1-4 peptide
  • CAT. No.C1520012
  • CAS. No.208599-57-9
  • Mol. F.C35H36ClN5O7
  • Mol. W.674.14 g/mol
  • Stock Status:Custom Synthesis
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Des-Acetyl -Cetrorelix
Des-Acetyl -Cetrorelix
  • CAT. No.C1520013
  • CAS. No.121081-09-2
  • Mol. F.C68H90ClN17O13
  • Mol. W.1389.00 g/mol
  • Stock Status:Custom Synthesis
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Acetyl-Ser4-Cetrorelix
Acetyl-Ser4-Cetrorelix
  • CAT. No.C1520014
  • CAS. No.NA
  • Mol. F.C72H94ClN17O15
  • Mol. W.1473.07 g/mol
  • Stock Status:Custom Synthesis
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L-Cit-Cetrorelix
L-Cit-Cetrorelix
  • CAT. No.C1520015
  • CAS. No.335158-68-4
  • Mol. F.C70H92ClN17O14
  • Mol. W.1431.04 g/mol
  • Stock Status:Custom Synthesis
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L-Pal Cetrorelix
L-Pal Cetrorelix
  • CAT. No.C1520016
  • CAS. No.NA
  • Mol. F.C70H92ClN17O14
  • Mol. W.1431.04 g/mol
  • Stock Status:Custom Synthesis
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pCl-L-Phe Cetrorelix
pCl-L-Phe Cetrorelix
  • CAT. No.C1520017
  • CAS. No.NA
  • Mol. F.C70H92ClN17O14
  • Mol. W.1431.04 g/mol
  • Stock Status:Custom Synthesis
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AC-L-Nal Cetrorelix
AC-L-Nal Cetrorelix
  • CAT. No.C1520018
  • CAS. No.NA
  • Mol. F.C70H92ClN17O14
  • Mol. W.1431.04 g/mol
  • Stock Status:Custom Synthesis
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4-D-Ser Cetrorelix
4-D-Ser Cetrorelix
  • CAT. No.C1520019
  • CAS. No.NA
  • Mol. F.C70H92ClN17O14
  • Mol. W.1431.04 g/mol
  • Stock Status:Instock
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Endo(3)-D-Pal-Cetrorelix
Endo(3)-D-Pal-Cetrorelix
  • CAT. No.C1520020
  • CAS. No.NA
  • Mol. F.C78H100ClN19O15
  • Mol. W.1579.20 g/mol
  • Stock Status:Instock
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L-Ala Cetrorelix
L-Ala Cetrorelix
  • CAT. No.C1520021
  • CAS. No.NA
  • Mol. F.C70H92ClN17O14
  • Mol. W.1431.06 g/mol
  • Stock Status:Instock
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L-Ala Cetrorelix trifluoroacetate
L-Ala Cetrorelix trifluoroacetate
  • CAT. No.C1520022
  • CAS. No.NA
  • Mol. F.C72H93ClF3N17O16
  • Mol. W.1545.06 g/mol
  • Stock Status:Custom Synthesis
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D-Arg Isomeric Trifluoroacetate
D-Arg Isomeric Trifluoroacetate
  • CAT. No.C1520023
  • CAS. No.NA
  • Mol. F.C72H93ClF3N17O16
  • Mol. W.1545.06 g/mol
  • Stock Status:Custom Synthesis
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Cetrorelix Des Amide Impurity
Cetrorelix Des Amide Impurity
  • CAT. No.C1520024
  • CAS. No.NA
  • Mol. F.C72H92ClF3N16O17
  • Mol. W.1546.05 g/mol
  • Stock Status:Limited Stock
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Cetrorelix D-Por Isomeric Impurity
Cetrorelix D-Por Isomeric Impurity
  • CAT. No.C1520025
  • CAS. No.NA
  • Mol. F.C70H92ClN17O14
  • Mol. W.1431.10 g/mol
  • Stock Status:Custom Synthesis
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L-Pal Cetrorelix Trifluoroacetate
L-Pal Cetrorelix Trifluoroacetate
  • CAT. No.C1520026
  • CAS. No.NA
  • Mol. F.C73H94ClF3N16O16
  • Mol. W.1544.07 g/mol
  • Stock Status:Custom Synthesis
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L-Cit-Cetrorelix Trifluoroacetate
L-Cit-Cetrorelix Trifluoroacetate
  • CAT. No.C1520027
  • CAS. No.NA
  • Mol. F.C72H93ClF3N17O16
  • Mol. W.1545.06 g/mol
  • Stock Status:Custom Synthesis
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Cetrorelix acetate L-Phe(4-CI)-Isomeric Impurity
Cetrorelix acetate L-Phe(4-CI)-Isomeric Impurity
  • CAT. No.C1520028
  • CAS. No.NA
  • Mol. F.NA
  • Mol. W.NA
  • Stock Status:Custom Synthesis
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8-(4-chlorobenzyl)-2-(hydroxymethyl)-11-(naphthalen-2-ylmethyl)-4,7,10,13-tetraoxo-5-(pyridin-3-ylmethyl)-3,6,9,12-tetraazatetradecan-1-oic acid
8-(4-chlorobenzyl)-2-(hydroxymethyl)-11-(naphthalen-2-ylmethyl)-4,7,10,13-tetraoxo-5-(pyridin-3-ylmethyl)-3,6,9,12-tetraazatetradecan-1-oic acid
  • CAT. No.C1520029
  • CAS. No.NA
  • Mol. F.C35H36ClN5O7
  • Mol. W.674.14 g/mol
  • Stock Status:Custom Synthesis
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Ser4(tBu)Cetrorelix
Ser4(tBu)Cetrorelix
  • CAT. No.C1520030
  • CAS. No.NA
  • Mol. F.C74H100ClN17O14
  • Mol. W.1487.14 g/mol
  • Stock Status:Custom Synthesis
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D-Cit6(Ac)Cetrorelix
D-Cit6(Ac)Cetrorelix
  • CAT. No.C1520031
  • CAS. No.NA
  • Mol. F.C72H94ClN17O15
  • Mol. W.1473.07 g/mol
  • Stock Status:Custom Synthesis
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Endo(3)-D-Pal-Cetrorelix
Endo(3)-D-Pal-Cetrorelix
  • CAT. No.C1520032
  • CAS. No.NA
  • Mol. F.C78H100ClN19O15.C2HF3O2
  • Mol. W.1693.22 g/mol
  • Stock Status:Custom Synthesis
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Des AC-L-Nal Cetrorelix
Des AC-L-Nal Cetrorelix
  • CAT. No.C1520034
  • CAS. No.NA
  • Mol. F.C68H90ClN17O13 .C2HF3O2
  • Mol. W.1503.00 g/mol
  • Stock Status:Custom Synthesis
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Cetrorelix Acetate
Cetrorelix Acetate
  • CAT. No.C1520035
  • CAS. No.1631741-31-5
  • Mol. F.C70H92ClN17O14.C2H4O2
  • Mol. W.1491.09 g/mol
  • Stock Status:Custom Synthesis
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Deacetylated cetrorelix
Deacetylated cetrorelix
  • CAT. No.C1520036
  • CAS. No.NA
  • Mol. F.NA
  • Mol. W.NA
  • Stock Status:Custom Synthesis
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Ser4 (Ac)-Cetrorelix
Ser4 (Ac)-Cetrorelix
  • CAT. No.C1520037
  • CAS. No.NA
  • Mol. F.NA
  • Mol. W.NA
  • Stock Status:Custom Synthesis
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Fragment-[1-7]-Cetrorelix
Fragment-[1-7]-Cetrorelix
  • CAT. No.C1520038
  • CAS. No.NA
  • Mol. F.C55H67ClN10O10
  • Mol. W.1062.47 g/mol
  • Stock Status:Custom Synthesis
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Deamination Cetrorelix
Deamination Cetrorelix
  • CAT. No.C1520039
  • CAS. No.NA
  • Mol. F.NA
  • Mol. W.NA
  • Stock Status:Custom Synthesis
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Cpa2-Cetrorelix
Cpa2-Cetrorelix
  • CAT. No.C1520040
  • CAS. No.NA
  • Mol. F.NA
  • Mol. W.NA
  • Stock Status:Custom Synthesis
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Cetrorelix Acid Trifluoroacetate
Cetrorelix Acid Trifluoroacetate
  • CAT. No.C1520041
  • CAS. No.NA
  • Mol. F.C70H92ClN17O14.XC2HF3O2
  • Mol. W.NA
  • Stock Status:Custom Synthesis
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4-D-Ser Cetrorelix Trifluoroacetate
4-D-Ser Cetrorelix Trifluoroacetate
  • CAT. No.C1520042
  • CAS. No.NA
  • Mol. F.C70H92ClN17O14.C2HF3O2
  • Mol. W.1545.06 g/mol
  • Stock Status:Custom Synthesis
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Cetrorelix
Cetrorelix
  • CAT. No.C1520043
  • CAS. No.120287-85-6
  • Mol. F.C70H92ClN17O14
  • Mol. W.1431.04 g/mol
  • Stock Status:Custom Synthesis
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Ac-Ser(O-modified)-Cetrorelix
Ac-Ser(O-modified)-Cetrorelix
  • CAT. No.C1520044
  • CAS. No.NA
  • Mol. F.C72H94ClN17O15
  • Mol. W.1473.10 g/mol
  • Stock Status:Custom Synthesis
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Endo-D-Cit-Cetrorelix
Endo-D-Cit-Cetrorelix
  • CAT. No.C1520045
  • CAS. No.NA
  • Mol. F.C76H103ClN20O16
  • Mol. W.1588.21 g/mol
  • Stock Status:Custom Synthesis
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Endo-D-Cit-Cetrorelix Trifluoroacetate
Endo-D-Cit-Cetrorelix Trifluoroacetate
  • CAT. No.C1520046
  • CAS. No.NA
  • Mol. F.C76H103ClN20O16.C2HF3O2
  • Mol. W.1702.23 g/mol
  • Stock Status:Limited Stock
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Ac-Ser(O-modified)-Cetrorelix
Ac-Ser(O-modified)-Cetrorelix
  • CAT. No.C1520047
  • CAS. No.NA
  • Mol. F.C72H94ClN17O15
  • Mol. W.1473.07 g/mol
  • Stock Status:Custom Synthesis
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(D-Orn6)-Cetrorelix Trifluoroacetate
(D-Orn6)-Cetrorelix Trifluoroacetate
  • CAT. No.C1520049
  • CAS. No.NA
  • Mol. F.C69H91ClN16O13.C2F3O2
  • Mol. W.1501.03 g/mol
  • Stock Status:Custom Synthesis
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(D-Arg8)-Cetrorelix Trifluoroacetate
(D-Arg8)-Cetrorelix Trifluoroacetate
  • CAT. No.C1520050
  • CAS. No.NA
  • Mol. F.C70H92ClN17O14.C2F3O2
  • Mol. W.1544.05 g/mol
  • Stock Status:Custom Synthesis
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Isotope Labelled Compounds

Cetrorelix-D10 Trifluoroacetic Acid Salt
Cetrorelix-D10 Trifluoroacetic Acid Salt
  • CAT. No.C1520001
  • CAS. No.NA
  • Mol. F.C70H82D10ClN17O14 . x CF3COOH
  • Mol. W.NA
  • Stock Status:Under Synthesis
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