Simson Pharma reference standards

Reference standards published in the Simson Pharma catalogue, listed with CAS number, molecular formula, molecular weight and structure where available.

17,015 products · 284 pages

Simson Pharma products

• structure on request

  Abacavir Methanolate Impurity

  CAS not assignedC12H15N5O2

  IN STOCKRS-A719001

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  Abrocitinib Nitroso Impurity 1

  CAS not assignedC14H20N6O4S

  IN STOCKRS-A723001

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• structure on request

  Acalabrutinib Nitroso Impurity 1

  CAS not assignedC22H20N8O2

  BACK ORDERRS-A726001

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  Afatinib N-Oxide Impurity

  CAS not assignedC24H25ClFN5O4

  BACK ORDERRS-A729001

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  Apixaban Isopropyl Ester Impurity

  CAS not assignedC28H30N4O5

  BACK ORDERRS-A737001

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  Asenapine Amide Impurity

  CAS not assignedC17H14ClNO2

  IN STOCKRS-A738001

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  Atogepant 3R-Diastereomer Impurity

  CAS not assignedC29H23F6N5O3

  BACK ORDERRS-A739001

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  Atosiban 1-8 Lactam Impurity

  CAS not assignedC41H61N9O11S2

  BACK ORDERRS-A740001

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  Avatrombopag 5-Chloro Acid Impurity

  CAS not assignedC29H34Cl2N6O3S2

  BACK ORDERRS-A741001

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  Axitinib Nitroso Impurity 2

  CAS not assignedC7H4IN3O

  CUSTOM SYNTHESISRS-A742001

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  Abacavir Chloro Impurity

  CAS not assignedC11H12ClN5O

  IN STOCKRS-A787001

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  Abacavir Sulfate Racemic (S,S,R,R)

  CAS not assignedC28H36N12O2·2H2SO4

  BACK ORDERRS-A792001

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  Abiraterone DHEA Iodo Dimer Impurity

  CAS not assignedC36H52N2O2

  BACK ORDERRS-A793001

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  Abiraterone Alpha Iodo Impurity

  CAS not assignedC19H27IO

  IN STOCKRS-A794001

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  Abacavir Methyl Ester Impurity

  CAS not assignedC13H13N5O2.HCl

  IN STOCKRS-A795001

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  Abemaciclib Alcohol Dimer Impurity

  CAS not assignedC37H33F4N9O

  BACK ORDERRS-A796001

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  Abemaciclib Desethyl Dimer Impurity

  CAS not assignedC40H40F4N12

  BACK ORDERRS-A797001

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  Abemaciclib Des-Ethyl Nitroso Impurity

  CAS not assignedC27H29F2N7O

  BACK ORDERRS-A798001

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  Aceclofenac Nitroso Impurity 2

  CAS not assignedC16H14Cl2N2O3

  IN STOCKRS-A799001

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  Acetylcysteine Manitol Impurity

  CAS not assignedC11H21NO8S

  IN STOCKRS-A800001

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  Adagrasib Nitroso Impurity 2

  CAS not assignedC30H40N8O4

  BACK ORDERRS-A801001

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  Adagrasib Trinitroso Impurity 8

  CAS not assignedC18H24N10O4

  BACK ORDERRS-A802001

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  Adagrasib Dinitroso Impurity 5

  CAS not assignedC18H25N9O3

  BACK ORDERRS-A803001

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  Afatinib Methoxy Impurity

  CAS not assignedC21H21ClFN5O2

  CUSTOM SYNTHESISRS-A805001

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  Adrenalone Nitroso Impurity 1

  CAS not assignedC9H10N2O4

  IN STOCKRS-A806001

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  Alectinib Acid Nitroso Impurity

  CAS not assignedC30H35N5O4

  BACK ORDERRS-A807001

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  Alectinib Dimer Impurity

  CAS not assignedC51H51N7O2

  BACK ORDERRS-A808001

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  Adrenaline Nitroso Impurity 1

  CAS not assignedC9H10N2O4

  IN STOCKRS-A809001

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  Alcaftadine N-Oxide Impurity 1

  CAS not assignedC18H21N3O2

  IN STOCKRS-A810001

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  Alcaftadine Di N-Oxide Impurity

  CAS not assignedC18H21N3O2

  IN STOCKRS-A811001

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  Algestone Acetophenide Impurity

  CAS not assignedC29H34O4

  BACK ORDERRS-A812001

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  Alimemazine tartrate Dimer impurity

  CAS not assignedC30H29N3S2

  BACK ORDERRS-A813001

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  Alectinib Nitroso Impurity 1

  CAS not assignedC30H33N5O3

  BACK ORDERRS-A814001

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  Allopurinol Nitroso Impurity 1

  CAS not assignedC6H7N7O2

  IN STOCKRS-A815001

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  Aliskiren Michael Adduct Impurity 2

  CAS not assignedC34H57N3O10

  BACK ORDERRS-A816001

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  Almotriptan Nitroso Impurity 1

  CAS not assignedC17H24N4O3S

  CUSTOM SYNTHESISRS-A820001

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  Almotriptan N-Isopropyl Impurity

  CAS not assignedC19H29N3O2S.C5H8O4

  BACK ORDERRS-A821001

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  Alvimopan Desmethyl Impurity

  CAS not assignedC24H30N2O4

  BACK ORDERRS-A823001

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  Alvimopan N-Nitroso impurity 1

  CAS not assignedC13H18N2O2

  IN STOCKRS-A824001

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  Amifampridine N-Oxide Impurity

  CAS not assignedC5H5N3O3

  IN STOCKRS-A832001

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  Amodiaquine Nitroso Impurity 1

  CAS not assignedC20H21ClN4O2

  CUSTOM SYNTHESISRS-A837001

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  Ammonium Glycyrrhizate EP Impurity A

  CAS not assignedC42H62O17

  BACK ORDERRS-A838001

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  Amustaline

  CAS not assignedC22H25Cl2N3O2

  BACK ORDERRS-A846001

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  Apremilast Acetamido Sulfone Impurity

  CAS not assignedC14H21NO5S

  IN STOCKRS-A847001

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  Anidulafungin Open-Chain Impurity

  CAS not assignedC58H73N7O17

  BACK ORDERRS-A848001

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  Apalutamide N-Formyl Impurity

  CAS not assignedC21H17F4N5O3

  BACK ORDERRS-A849001

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  Apremilast Hydrolysis Impurity

  CAS not assignedC22H25N2NaO8S

  BACK ORDERRS-A856001

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  Aprepitant Nitroso Impurity 1

  CAS not assignedC20H17F7N2O3

  BACK ORDERRS-A857001

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  Argatroban Pentanoic Acid Impurity

  CAS not assignedC16H25N5O4S

  CUSTOM SYNTHESISRS-A862001

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  Argatroban Nitroso Impurity

  CAS not assignedC23H35N7O6S

  BACK ORDERRS-A863001

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  Asp7 Linaclotide Impurity

  CAS not assignedC59H78N14O22S6

  BACK ORDERRS-A864001

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  Aripiprazole Nitroso Impurity 5

  CAS not assignedC11H16ClN3O2

  IN STOCKRS-A865001

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  Aripiprazole Myristic Ester Impurity

  CAS not assignedC37H55N3O4

  CUSTOM SYNTHESISRS-A866001

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  Artemether Furoisochromen Impurity

  CAS not assignedC16H26O5

  IN STOCKRS-A867001

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  Asenapine N-Oxide Impurity 2

  CAS not assignedC17H16ClNO2

  IN STOCKRS-A868001

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  Atazanavir Keto Diamine Impurity

  CAS not assignedC22H24N4O

  IN STOCKRS-A876001

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  Atorvastatin Acetonide Acid Impurity

  CAS not assignedC36H39FN2O5.C6H15N

  BACK ORDERRS-A877001

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  Atazanavir Nitroso Impurity 1

  CAS not assignedC8H13N3OS

  IN STOCKRS-A878001

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  Atogepant bis-trifluoroethyl Impurity

  CAS not assignedC31H24F9N5O3

  BACK ORDERRS-A879001

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  Atomoxetine Nitroso Impurity A

  CAS not assignedC16H18N2O2

  CUSTOM SYNTHESISRS-A880001

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17,015 products · 284 pages