Clomiphene

Clomiphene is a selective oestrogen receptor modulator (SERM) that induces gonadotrophin release by blocking hypothalamic oestrogen negative feedback, used as a first-line oral treatment for anovulatory infertility. Simson Pharma's Clomiphene reference standard and impurities support compendial testing for this widely used fertility agent.

Simson Pharma Global Ltd. (UK) and Simson Pharma Global LLC (USA) supply high-quality Clomiphene Reference Standards, pharmacopoeial reference materials, and its related impurities to pharmaceutical manufacturers, CROs, analytical laboratories, universities, and regulatory organizations worldwide. To service the Europe and America market efficiently, Simson Pharma Limited has set up Simson Pharma Global Ltd. in United Kingdom and Simson Pharma Global LLC in USA respectively.

Pharmaceutical Reference Standards / Impurity Standards

Clomiphene Citrate
Clomiphene Citrate
  • CAT. No.C930000
  • CAS. No.50-41-9
  • Mol. F.C32H36ClNO8
  • Mol. W.598.08 g/mol
  • Stock Status:Instock
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Enclomiphene Hydrochloride
Enclomiphene Hydrochloride
  • CAT. No.C930001
  • CAS. No.14158-65-7
  • Mol. F.C26H28ClNO.HCl
  • Mol. W.442.42 g/mol
  • Stock Status:Custom Synthesis
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Clomiphene EP Impurity A Hydrochloride Salt
Clomiphene EP Impurity A Hydrochloride Salt
  • CAT. No.C930003
  • CAS. No.74056-26-1
  • Mol. F.C26H30ClNO
  • Mol. W.407.98 g/mol
  • Stock Status:Instock
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Clomiphene EP Impurity A
Clomiphene EP Impurity A
  • CAT. No.C930003A
  • CAS. No.74056-26-1
  • Mol. F.C26H30ClNO
  • Mol. W.407.98 g/mol
  • Stock Status:Under Synthesis
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Clomiphene Keto Analog
Clomiphene Keto Analog
  • CAT. No.C930004
  • CAS. No.5635-70-1
  • Mol. F.C26H29NO2.HCl
  • Mol. W.423.97 g/mol
  • Stock Status:Instock
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Clomiphene EP Impurity D Dihydrochloride
Clomiphene EP Impurity D Dihydrochloride
  • CAT. No.C930005
  • CAS. No.1391054-64-0(free base)
  • Mol. F.C38H48Cl2N2O3
  • Mol. W.651.71 g/mol
  • Stock Status:Under Synthesis
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Clomiphene EP Impurity E
Clomiphene EP Impurity E
  • CAT. No.C930006
  • CAS. No.117884-83-0
  • Mol. F.C32H35Cl2NO8
  • Mol. W.632.53 g/mol
  • Stock Status:Instock
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Clomiphene Citrate Impurity E
Clomiphene Citrate Impurity E
  • CAT. No.C930006A
  • CAS. No.117884-82-9
  • Mol. F.C26H27Cl2NO
  • Mol. W.440.40 g/mol
  • Stock Status:Custom Synthesis
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Clomiphene EP Impurity B
Clomiphene EP Impurity B
  • CAT. No.C930007
  • CAS. No.796-77-0
  • Mol. F.C19H23NO2
  • Mol. W.297.39 g/mol
  • Stock Status:Instock
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4`-Chloro Clomiphene Citrate
4`-Chloro Clomiphene Citrate
  • CAT. No.C930008
  • CAS. No.14158-75-9
  • Mol. F.C32H35Cl2NO8
  • Mol. W.632.53 g/mol
  • Stock Status:Under Synthesis
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4-Chloroclomiphene E Isomer
4-Chloroclomiphene E Isomer
  • CAT. No.C930008A
  • CAS. No.NA
  • Mol. F.C26H27Cl2NO
  • Mol. W.440.40 g/mol
  • Stock Status:Custom Synthesis
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4-Chloroclomiphene Z Isomer
4-Chloroclomiphene Z Isomer
  • CAT. No.C930008B
  • CAS. No.NA
  • Mol. F.C26H27Cl2NO
  • Mol. W.440.40 g/mol
  • Stock Status:Custom Synthesis
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2-Chloro Clomiphene Citrate (E/Z Mixture)
2-Chloro Clomiphene Citrate (E/Z Mixture)
  • CAT. No.C930009
  • CAS. No.1795130-18-5
  • Mol. F.C32H35Cl2NO8
  • Mol. W.632.53 g/mol
  • Stock Status:Instock
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Cis-Clomiphene Citrate
Cis-Clomiphene Citrate
  • CAT. No.C930010
  • CAS. No.15690-55-8
  • Mol. F.C26H28ClNO.C6H8O7
  • Mol. W.598.08 g/mol
  • Stock Status:Custom Synthesis
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Clomiphene N-Oxide
Clomiphene N-Oxide
  • CAT. No.C930011
  • CAS. No.97642-74-5
  • Mol. F.C26H28ClNO2
  • Mol. W.421.97 g/mol
  • Stock Status:Custom Synthesis
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Clomifene Citrate
Clomifene Citrate
  • CAT. No.C930012
  • CAS. No.50-41-9
  • Mol. F.C26H28ClNO.C6H8O7
  • Mol. W.598.08 g/mol
  • Stock Status:Custom Synthesis
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Benzyl Clomiphene
Benzyl Clomiphene
  • CAT. No.C930013
  • CAS. No.NA
  • Mol. F.C33H34ClNO
  • Mol. W.496.09 g/mol
  • Stock Status:Custom Synthesis
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Deschloroclomiphene Chlorophenyl Analog-Z-Isomer
Deschloroclomiphene Chlorophenyl Analog-Z-Isomer
  • CAT. No.C930013B
  • CAS. No.NA
  • Mol. F.C26H27Cl2NO
  • Mol. W.440.40 g/mol
  • Stock Status:Custom Synthesis
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Clomifene Impurity A
Clomifene Impurity A
  • CAT. No.C930014
  • CAS. No.19957-52-9
  • Mol. F.C26H29NO
  • Mol. W.371.51 g/mol
  • Stock Status:Instock
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Clomifene EP Impurity C
Clomifene EP Impurity C
  • CAT. No.C930015
  • CAS. No.5530-99-4
  • Mol. F.C26H29NO2
  • Mol. W.387.51 g/mol
  • Stock Status:Instock
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Clomifene Dimer
Clomifene Dimer
  • CAT. No.C930016
  • CAS. No.NA
  • Mol. F.C46H41Cl2NO2
  • Mol. W.710.73 g/mol
  • Stock Status:Custom Synthesis
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Clomifene Ethylene Impurity
Clomifene Ethylene Impurity
  • CAT. No.C930020
  • CAS. No.NA
  • Mol. F.C22H17ClO
  • Mol. W.332.82 g/mol
  • Stock Status:Custom Synthesis
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Benzyl Clomiphene-E-Isomer
Benzyl Clomiphene-E-Isomer
  • CAT. No.C930021
  • CAS. No.NA
  • Mol. F.C33H34ClNO
  • Mol. W.496.08 g/mol
  • Stock Status:Custom Synthesis
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Benzyl Clomiphene
Benzyl Clomiphene
  • CAT. No.C930021B
  • CAS. No.NA
  • Mol. F.C33H34ClNO
  • Mol. W.496.09 g/mol
  • Stock Status:Custom Synthesis
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Clomifene Citrate EP Impurity G & H
Clomifene Citrate EP Impurity G & H
  • CAT. No.C930022
  • CAS. No.1795130-18-5
  • Mol. F.C32H35Cl2NO8
  • Mol. W.632.53 g/mol
  • Stock Status:Custom Synthesis
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trans-Clomiphene
trans-Clomiphene
  • CAT. No.C930024
  • CAS. No.15690-57-0
  • Mol. F.C26H28ClNO
  • Mol. W.405.96 g/mol
  • Stock Status:Custom Synthesis
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Cis-Clomiphene Citrate
Cis-Clomiphene Citrate
  • CAT. No.C930025
  • CAS. No.7619-53-6
  • Mol. F.C26H28ClNO.C6H8O7
  • Mol. W.598.08 g/mol
  • Stock Status:Instock
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Clomiphene Impurity 1
Clomiphene Impurity 1
  • CAT. No.C930030
  • CAS. No.73404-00-9
  • Mol. F.C26H31NO2
  • Mol. W.389.53 g/mol
  • Stock Status:Custom Synthesis
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N-Desethyl Clomiphene Hydrochloride (Mixture of Z and E Isomers)
N-Desethyl Clomiphene Hydrochloride (Mixture of Z and E Isomers)
  • CAT. No.C930031
  • CAS. No.1310815-19-0
  • Mol. F.C24H24ClNO.HCl
  • Mol. W.414.37 g/mol
  • Stock Status:Instock
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Chlorostilbene
Chlorostilbene
  • CAT. No.C930032
  • CAS. No.948-99-2
  • Mol. F.C14H11Cl
  • Mol. W.214.69 g/mol
  • Stock Status:Custom Synthesis
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Clomiphene Impurity 2
Clomiphene Impurity 2
  • CAT. No.C930033
  • CAS. No.NA
  • Mol. F.C27H31NO3
  • Mol. W.417.54 g/mol
  • Stock Status:Instock
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Clomiphene EP Impurity D
Clomiphene EP Impurity D
  • CAT. No.C930034
  • CAS. No.1391054-64-0
  • Mol. F.C38H46N2O3
  • Mol. W.578.78 g/mol
  • Stock Status:Custom Synthesis
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(E)-(1-(4-(2-chloroethoxy)phenyl)ethene-1,2-diyl)dibenzene
(E)-(1-(4-(2-chloroethoxy)phenyl)ethene-1,2-diyl)dibenzene
  • CAT. No.C930035
  • CAS. No.NA
  • Mol. F.C22H19ClO
  • Mol. W.334.84 g/mol
  • Stock Status:Custom Synthesis
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(Z)-(1-chloro-2-(2-(2-chloroethoxy)phenyl)ethene-1,2-diyl)dibenzene
(Z)-(1-chloro-2-(2-(2-chloroethoxy)phenyl)ethene-1,2-diyl)dibenzene
  • CAT. No.C930036
  • CAS. No.NA
  • Mol. F.C22H18Cl2O
  • Mol. W.369.28 g/mol
  • Stock Status:Custom Synthesis
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Desethyl Clomifene
Desethyl Clomifene
  • CAT. No.C930037
  • CAS. No.78693-91-1
  • Mol. F.C24H24ClNO
  • Mol. W.377.91 g/mol
  • Stock Status:Instock
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2-Chloroclomiphene E-Isomer
2-Chloroclomiphene E-Isomer
  • CAT. No.C930038
  • CAS. No.NA
  • Mol. F.C26H27Cl2NO
  • Mol. W.440.40 g/mol
  • Stock Status:Custom Synthesis
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Deschloroclomiphene Chlorophenyl Analog-E-Isomer
Deschloroclomiphene Chlorophenyl Analog-E-Isomer
  • CAT. No.C930039
  • CAS. No.NA
  • Mol. F.C26H27Cl2NO
  • Mol. W.440.40 g/mol
  • Stock Status:Custom Synthesis
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Benzyl Clomiphene-Z-Isomer
Benzyl Clomiphene-Z-Isomer
  • CAT. No.C930040
  • CAS. No.NA
  • Mol. F.C33H34ClNO
  • Mol. W.496.08 g/mol
  • Stock Status:Custom Synthesis
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Benzyl Clomiphene-Z-Isomer Citrate
Benzyl Clomiphene-Z-Isomer Citrate
  • CAT. No.C930041
  • CAS. No.NA
  • Mol. F.C33H34ClNO.C6H8O7
  • Mol. W.688.21 g/mol
  • Stock Status:Custom Synthesis
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Benzyl Clomiphene-E-Isomer Citrate
Benzyl Clomiphene-E-Isomer Citrate
  • CAT. No.C930042
  • CAS. No.NA
  • Mol. F.C33H34ClNO.C6H8O7
  • Mol. W.688.21 g/mol
  • Stock Status:Custom Synthesis
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Clomiphene impurity 3
Clomiphene impurity 3
  • CAT. No.C930043
  • CAS. No.NA
  • Mol. F.C26H27Cl2NO
  • Mol. W.440.40 g/mol
  • Stock Status:Custom Synthesis
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Clomiphene impurity 4
Clomiphene impurity 4
  • CAT. No.C930044
  • CAS. No.NA
  • Mol. F.C26H27Cl2NO
  • Mol. W.440.40 g/mol
  • Stock Status:Custom Synthesis
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Clomiphene
Clomiphene
  • CAT. No.C930045
  • CAS. No.911-45-5
  • Mol. F.C26H28ClNO
  • Mol. W.406.00 g/mol
  • Stock Status:Custom Synthesis
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N-Nitroso Des-ethyl Clomiphene
N-Nitroso Des-ethyl Clomiphene
  • CAT. No.C930047
  • CAS. No.NA
  • Mol. F.C24H23ClN2O2
  • Mol. W.292.20 g/mol
  • Stock Status:Custom Synthesis
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Metabolites

trans-Clomiphene Citrate
trans-Clomiphene Citrate
  • CAT. No.C930026
  • CAS. No.7599-79-3
  • Mol. F.C32H36ClNO8
  • Mol. W.598.08 g/mol
  • Stock Status:Instock
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N-Desethyl Clomiphene Hydrochloride (Mixture Of Z and E Isomers)
N-Desethyl Clomiphene Hydrochloride (Mixture Of Z and E Isomers)
  • CAT. No.C930027
  • CAS. No.1310815-19-0
  • Mol. F.C24H25Cl2NO
  • Mol. W.414.37 g/mol
  • Stock Status:Custom Synthesis
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Zuclomiphene-N-Oxide
Zuclomiphene-N-Oxide
  • CAT. No.C930029
  • CAS. No.1310815-36-1
  • Mol. F.C26H28ClNO2
  • Mol. W.421.96 g/mol
  • Stock Status:Custom Synthesis
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Isotope Labelled Compounds

Clomiphene-D5 Hydrochloride
Clomiphene-D5 Hydrochloride
  • CAT. No.C930018
  • CAS. No.1346606-66-3
  • Mol. F.C26H24D5Cl2NO
  • Mol. W.447.45 g/mol
  • Stock Status:Custom Synthesis
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Clomiphene-D5 Citrate
Clomiphene-D5 Citrate
  • CAT. No.C930019
  • CAS. No.1217200-17-3
  • Mol. F.C32H31D5ClNO8
  • Mol. W.603.11 g/mol
  • Stock Status:Custom Synthesis
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Clomiphene Citrate (cis-trans mixture)
Clomiphene Citrate (cis-trans mixture)
  • CAT. No.C930023
  • CAS. No.14158-66-8 (UNLABELLED
  • Mol. F.C26H23D5ClNO
  • Mol. W.447.45 g/mol
  • Stock Status:Custom Synthesis
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