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Home → Products → Impurities Certified Reference Materials → E
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Impurities Certified Reference Materials

Ethyl Vanillin

  • Catalog number: RSV02084
  • Status: BackOrdered
  • Molecular formula: C9H10O3
  • CAS registry number: 121-32-4
  • Capacity: 200 mg
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Epoxy Mometasone Furoate

  • Catalog number: RSM01366
  • Status: BackOrdered
  • Molecular formula: C27H29ClO6
  • CAS registry number: 83881-09-8
  • Capacity: 25 mg
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endo-Lurasidone

  • Catalog number: RSL01228
  • Status: BackOrdered
  • Molecular formula: C28H36N4O2S
  • CAS registry number: 1318074-25-7
  • Capacity: 25 mg
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Ethylene Glycol

  • Catalog number: RSG00940
  • Status: BackOrdered
  • Molecular formula: C2H6O2
  • CAS registry number: 107-21-1
  • Capacity: 100 mg
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Ethyl Fenofibrate

  • Catalog number: RSF00867
  • Status: BackOrdered
  • Molecular formula: C19H19ClO4
  • CAS registry number: 42019-08-9
  • Capacity: 25 mg
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Ezetimibe Benzyl Ether Impurity

  • Catalog number: RSE00844
  • Status: BackOrdered
  • Molecular formula: C31H27F2NO3
  • CAS registry number: 163222-32-0
  • Capacity: 25 mg
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Ezetimibe Isomer

  • Catalog number: RSE00843
  • Status: BackOrdered
  • Molecular formula: C24H21F2NO3
  • CAS registry number: 163380-16-3
  • Capacity: 25 mg
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Ezetimibe Impurity 45

  • Catalog number: RSE00841
  • Status: BackOrdered
  • Molecular formula: C20H20FNO4
  • CAS registry number: 189028-95-3
  • Capacity: 500 mg
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Ezetimibe Tetrahydropyran

  • Catalog number: RSE00840
  • Status: BackOrdered
  • Molecular formula: C24H21F2NO3
  • CAS registry number: 1296129-15-1
  • Capacity: 25 mg
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Ezetimibe Ketone

  • Catalog number: RSE00839
  • Status: BackOrdered
  • Molecular formula: C24H19F2NO3
  • CAS registry number: 191330-56-0
  • Capacity: 25 mg
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Erythromycin B

  • Catalog number: RSE00800
  • Status: BackOrdered
  • Molecular formula: C37H67NO12
  • CAS registry number: 527-75-3
  • Capacity: 100 mg
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Eplerenone Impurity G

  • Catalog number: RSE00792
  • Status: BackOrdered
  • Molecular formula: C24H32O5
  • CAS registry number: 41020-65-9
  • Capacity: 10 mg
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Erlotinib Impurity A

  • Catalog number: RSE00795
  • Status: BackOrdered
  • Molecular formula: C14H18N2O5
  • CAS registry number: 179688-29-0
  • Capacity: 25 mg
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Erlotinib Impurity B

  • Catalog number: RSE00796
  • Status: BackOrdered
  • Molecular formula: C8H7N
  • CAS registry number: 54060-30-9
  • Capacity: 10 mg
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Erlotinib Impurity D

  • Catalog number: RSE00797
  • Status: BackOrdered
  • Molecular formula: C14H17ClN2O4
  • CAS registry number: 183322-18-1
  • Capacity: 25 mg
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Enalapril Maleate

  • Catalog number: RSE00782
  • Status: BackOrdered
  • Molecular formula: C20H28N2O5. C4H4O4
  • CAS registry number: 76095-16-4
  • Capacity: 200 mg
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Eplerenone Impurity F Potassium Salt

  • Catalog number: RSE00790
  • Status: BackOrdered
  • Molecular formula: C24H31O7.K
  • CAS registry number: 95716-98-6
  • Capacity: 25 mg
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Eplerenone Impurity E

  • Catalog number: RSE00789
  • Status: BackOrdered
  • Molecular formula: C24H30O6
  • CAS registry number: 209253-81-6
  • Capacity: 25 mg
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Eplerenone Impurity D

  • Catalog number: RSE00788
  • Status: BackOrdered
  • Molecular formula: C23H28O6
  • CAS registry number: 209253-82-7
  • Capacity: 25 mg
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Eplerenone Impurity B

  • Catalog number: RSE00787
  • Status: BackOrdered
  • Molecular formula: C20H26N2O4
  • CAS registry number: 192704-82-8
  • Capacity: 25 mg
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Enalapril Diketopiperazine

  • Catalog number: RSE00784
  • Status: BackOrdered
  • Molecular formula: C20H26N2O4
  • CAS registry number: 115729-52-7
  • Capacity: 25 mg
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Enalapril Impurity 1

  • Catalog number: RSE00783
  • Status: BackOrdered
  • Molecular formula: C9H10O2
  • CAS registry number: 501-52-0
  • Capacity: 100 mg
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Enalaprilat (Anhydrous)

  • Catalog number: RSE00780
  • Status: BackOrdered
  • Molecular formula: C18H24N2O5
  • CAS registry number: 76420-72-9
  • Capacity: 100 mg
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Econazole Related Compound A

  • Catalog number: RSE00766
  • Status: BackOrdered
  • Molecular formula: C11H10Cl2N2O
  • CAS registry number: 24155-42-8
  • Capacity: 15 mg
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Econazole Related Compound C

  • Catalog number: RSE00768
  • Status: BackOrdered
  • Molecular formula: C25H21Cl5N2O
  • CAS registry number: 57265-33-5
  • Capacity: 15 mg
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Empagliflozin Desbromo Impurity

  • Catalog number: RSE00770
  • Status: BackOrdered
  • Molecular formula: C17H17ClO2
  • CAS registry number: 2517968-35-1
  • Capacity: 25 mg
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Empagliflozin (S-III-Hydroxy) Impurity

  • Catalog number: RSE00771
  • Status: BackOrdered
  • Molecular formula: C23H27ClO8
  • CAS registry number: 1279691-35-8
  • Capacity: 25 mg
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Empagliflozin (S-III-Methoxy) Impurity

  • Catalog number: RSE00772
  • Status: BackOrdered
  • Molecular formula: C24H29ClO8
  • CAS registry number: 1279691-36-9
  • Capacity: 25 mg
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Empagliflozin alpha-Anomer

  • Catalog number: RSE00773
  • Status: BackOrdered
  • Molecular formula: C23H27ClO7
  • CAS registry number: 1620758-33-9
  • Capacity: 25 mg
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Empagliflozin R-Isomer

  • Catalog number: RSE00775
  • Status: BackOrdered
  • Molecular formula: C23H27ClO7
  • CAS registry number: 864070-43-9
  • Capacity: 25 mg
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Empagliflozin TOS4

  • Catalog number: RSE00776
  • Status: BackOrdered
  • Molecular formula: C11H14O4S
  • CAS registry number: 219823-47-9
  • Capacity: 100 mg
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Empagliflozin Destetrahydrofuran Impurity

  • Catalog number: RSE00777
  • Status: BackOrdered
  • Molecular formula: C19H21ClO6
  • CAS registry number: 864070-37-1
  • Capacity: 25 mg
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Empagliflozin Impurity

  • Catalog number: RSE00778
  • Status: BackOrdered
  • Molecular formula: C29H31ClO11
  • CAS registry number: 912917-85-2
  • Capacity: 10 mg
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Empagliflozin Bromo Impurity

  • Catalog number: RSE00779
  • Status: BackOrdered
  • Molecular formula: C17H16BrClO2
  • CAS registry number: 915095-89-5
  • Capacity: 25 mg
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Ebastine Impurity H

  • Catalog number: RSE00764
  • Status: BackOrdered
  • Molecular formula: C26H22O
  • CAS registry number: 574-42-5
  • Capacity: 50 mg
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Ebastine impurity (F&G)

  • Catalog number: RSE00763
  • Status: BackOrdered
  • Molecular formula: C32H39NO3
  • CAS registry number: 1256285-71-8
  • Capacity: 50 mg
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Ebastine impurity D

  • Catalog number: RSE00762
  • Status: BackOrdered
  • Molecular formula: C19H29NO2
  • CAS registry number: 97928-18-2
  • Capacity: 25 mg
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Ebastine impurity C

  • Catalog number: RSE00761
  • Status: BackOrdered
  • Molecular formula: C8H8N2OS
  • CAS registry number: 58258-01-8
  • Capacity: 10 mg
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Ebastine impurity B

  • Catalog number: RSE00760
  • Status: BackOrdered
  • Molecular formula: C12H16O
  • CAS registry number: 943-27-1
  • Capacity: 100 mg
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Ebastine impurity A

  • Catalog number: RSE00759
  • Status: BackOrdered
  • Molecular formula: C13H12O
  • CAS registry number: 91-01-0
  • Capacity: 50 mg
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Erythromycin Oxime

  • Catalog number: RSC00501
  • Status: BackOrdered
  • Molecular formula: C37H68N2O13
  • CAS registry number: 111321-02-9
  • Capacity: 25 mg
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Ethoxy Cetirizine Dihydrochloride

  • Catalog number: RSC00427
  • Status: BackOrdered
  • Molecular formula: C23H29ClN2O4 . 2HCl
  • CAS registry number: 83881-56-5
  • Capacity: 100 mg
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Epoxy Betamethasone

  • Catalog number: RSB00260
  • Status: BackOrdered
  • Molecular formula: C22H28O5
  • CAS registry number: 981-34-0
  • Capacity: 25 mg
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Etoricoxib Impurity B

  • Catalog number: RSE00834
  • Status: BackOrdered
  • Molecular formula: C17H13ClN2O2S
  • CAS registry number: 202409-31-2
  • Capacity: 25 mg
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