Ethinyl Estradiol Related Compounds & Impurities

Ethinyl Estradiol is a synthetic oestrogen with high oral bioavailability due to its 17-alpha-ethinyl group, the most widely used oestrogenic component of combined oral contraceptives.

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 Ethinyl Estradiol reference standards, pharmacopeial and non-pharmacopeial Ethinyl Estradiol 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 Ethinyl Estradiol-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

Ethinyl Estradiol
Ethinyl Estradiol EP Impurity C
Ethinyl Estradiol EP Impurity I
Ethinyl Estradiol EP Impurity B
Ethinylestradiol EP Impurity F
Ethinyl Estradiol EP Impurity-F ( MIxture of Isomer)
Ethinyl Estradiol EP Impurity K
2-Methyl-3,17beta-Estradiol
Estradiol Valerate EP Impurity A
Ethinylestradiol EP Impurity A
17 alpha -Estradiol
17Beta-Estradiol Sodium Sulfate
Ethinyl Estradiol Related Compound A
Ethinyl Estradiol EP Impurity E
Ethinyl Estradiol EP Impurity M
Ethinyl Estradiol EP Impurity J
Estrone 3-Methyl Ether
Estrone Acetate
4-Methyl Ethynyl Estradiol
Estradiol 3-Enanthate
Delta-9(11)-Estradiol 17-Enanthate
Estradiol Enanthate
Ethinylestradiol EP Impurity H
Ethinyl Estradiol EP Impurity I
6-Keto-18-methyl-17-ethynyl estradiol
Delta-9,11-Dehydro Estrone
Estradiol Benzoate
Estrone beta-D-Glucuronide
Beta-Estradiol 17-Acetate
Ethinyl Estradiol Dimer Impurity 2
Ethinyl estradiol Dimer Impurity 1
17-alpha Estradiol Enanthate
17-alpha-Ethynyl Estradiol-3-Sulfate
17beta-Dihydro-17alpha-ethynyl-equillenin
Estradiol Valerate EP Impurity D
Estradiol Valerate EP Impurity J
Estradiol Impurity 4
Estradiol Hexahydrobenzoate
17beta-Estradiol Dimethyl Ether
Estradiol Dimer 1
Estradiol Dimer 2
Estradiol-9-ene Cypionate
Estradiol Dicypionate
4-Methylestradiol Cypionate
Estradiol 3,17-Dienanthate
(17beta)-Estra-1,3,5(10),8-tetraene-3,17-diol
17 Beta -Estradiol 17 Beta -D-Glucuronide
17Beta-Estradiol 3-Beta-D-Glucuronide
Estrone Beta-D-Glucuronide Sodium Salt
Estradiol Valerate 6-Keto Impurity
Ethinylestradiol Impurity M
3-O-Methyl Estradiol
16-Keto 17beta-Estradiol
4-Methyl Estradiol Enanthate
2-Hydroxy Ethynyl Estradiol
Estradiol cypionate
Ethinylestradiol Impurity Dimer
16-Ethylidene-Estrone
Estradiol Impurity O
Estradiol Impurity Q
Estradiol 17-Octanoate
17-alpha-Ethynyl Estradiol-3-Sulfate Triethylamine Salt
2-Bromo-17beta-Estradiol
Estradiol Impurity 8
6-Keto Estrone
Estradiol Dimer 3
17a-Ethinylestradiol-2,4,16,16,21 D5
Estradiol Impurity 1
4-Methoxyestradiol
11-Keto Estradiol
Estradiol Impurity 2
Estradiol 17-O-beta-D-glucuronide Sodium
Estradiol 3-O-beta-D-glucuronide sodium
Estradiol Impurity 3
Estradiol Related Compound B

Metabolites

Ethynyl Estradiol 3-beta-D-Glucuronide
Ethynyl Estradiol 3-Sulfate Sodium Salt
Estradiol 3,17-Disulfate
Beta-Estradiol 3,17-Diacetate
17-Estradiol 17-Sulfate Potassium Salt

Isotope Labelled Compounds

17a-Ethinylestradiol-2,4,16,16-D4
Estrone D4
17beta-estradiol-16,16,17-D3
Estradiol D4
Ethynyl Estradiol-2,4,9,6,6,16,16-D7
Sodium Estrone-2,4,16,16-D4 Sulfate