Pharmaceutical Impurity Standards & Reference Standards

Browse our full catalog of pharmaceutical impurities, reference materials, and research chemicals.

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ESTRADIOL

Estradiol Valerate EP Impurity E (3,17-DivalerateEstradiol)

CAT No.-
CAS No.63042-28-4
Mol. F.C28H40O4
Mol. W.440.62
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ESTRADIOL

Estradiol Valerate

CAT No.-
CAS No.979-32-8
Mol. F.C23H32O3
Mol. W.356.51
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ESTRADIOL

Ethinyl Estradiol EP Impurity B

CAT No.-
CAS No.1231-96-5
Mol. F.C20H22O2
Mol. W.294.39
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ESTRADIOL

Ethinylestradiol Impurity M

CAT No.-
CAS No.1818-11-7
Mol. F.C21H24O2
Mol. W.308.42
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ESTRADIOL

Ethynyl Estradiol EP Impurity L (17-epi-Estradiol)

CAT No.-
CAS No.57-91-0
Mol. F.C18H24O2
Mol. W.272.39
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ESTRADIOL

Estradiol EP Impurity B-d3 (Ethinyl Estradiol EPImpurity L-d3)

CAT No.-
CAS No.57-91-0 (non-labelled)
Mol. F.C18H21D3O2
Mol. W.275.41
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ESTRADIOL

Estradiol Hemihydrate EP Impurity C (4-MethylEstradiol)

CAT No.-
CAS No.6171-48-8
Mol. F.C19H26O2
Mol. W.286.42
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ESTRADIOL

Estradiol 3-Enanthate

CAT No.-
CAS No.55540-97-1
Mol. F.C25H36O3
Mol. W.384.56
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ESTRADIOL

Estradiol Valerate EP Impurity B (3-ValerateEstradiol)

CAT No.-
CAS No.21881-45-8
Mol. F.C23H32O3
Mol. W.356.51
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ESTRADIOL

Estradiol-d5

CAT No.-
CAS No.-
Mol. F.C18H19O2D5
Mol. W.277.42
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