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Ethinylestradiol EP Impurity B. Uses: For analytical and research use. Group: Impurity standards. CAS No. 1231-96-5. Molecular formula: C20H22O2. Mole weight: 294.39. Catalog: APB1231965.
16α,17α-Epoxy-19-norpregna-1,3,5(10)-trien-20-yn-3-ol Acetate is an intermediate in the synthesis of 17-epi-Ethynyl Estradiol (E685095). 17-epi-Ethynyl Estradiol (Ethinylestradiol EP Impurity A) is the epimer derivative of Ethynyl Estradiol (E685100), which is an impurity. Group: Biochemicals. Grades: Highly Purified. CAS No. 55812-84-5. Pack Sizes: 1mg, 2.5mg. Molecular Formula: C22H24O3. US Biological Life Sciences.
Worldwide
17β-Estradiol-[2,4,16,16,17-d5]
17β-Estradiol-[2,4,16,16,17-d5] is a deuterated β-estradiol. Estradiol? is the major estrogen secreted by the premenopausal ovary. Estrogens directs the development of the female genotype in embryogenesis and at puberty. Synonyms: 17β-Estradiol-2,4,16,16,17-d5; Estradiol-d5; 17β-Estradiol-d5; Dihydrofolliculin-d5; (17β)-Estra-1,3,5(10)-triene-3,17-diol-d5; 3,17-Epidihydroxyestratriene-d5; Cimara-d5; Estrace-d5; Estraderm-d5; Ethinylestradiol EP Impurity D-d5. Grade: 99% by CP; 97% atom D. CAS No. 221093-45-4. Molecular formula: C18H19D5O2. Mole weight: 277.42.
17-Dehydroxy-dehydro 17-epi-Ethynyl Estradiol
17-Dehydroxy-dehydro 17-epi-Ethynyl Estradiol is a by-product in the synthesis of 17-epi-Ethynyl Estradiol (E685095). 17-epi-Ethynyl Estradiol (Ethinylestradiol EP Impurity A) is the epimer derivative of Ethynyl Estradiol (E685100), which is an impurity. Group: Biochemicals. Grades: Highly Purified. CAS No. 71716-18-2. Pack Sizes: 1mg, 2.5mg. Molecular Formula: C20H22O. US Biological Life Sciences.
Worldwide
17-epi-Ethynyl Estradiol
17-epi-Ethynyl Estradiol. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Ethinylestradiol Imp. A (EP), 17-epi-Ethynylestradiol, 17?-Ethynylestradiol,19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol, 17?-Estradiol, 17-ethynyl-, 19-Norpregna-1,3,5(10)-trien-20-yne-3,17-diol (17?-Ethinylestradiol). CAS No. 4717-38-8. IUPAC Name: (8R,9S,13S,14S,17S)-17-ethynyl-13-methyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol. Molecular formula: C20H24O2. Mole weight: 296.40. Catalog: APS4717388. SMILES: C[C@]12CC[C@H]3[C@@H](CCc4cc(O)ccc34)[C@@H]1CC[C@]2(O)C#C. Format: Neat.
2-Methyl Ethynyl Estradiol
2-Methyl Ethynyl Estradiol. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: (17?)-2-Methyl-19-norpregna-1,3,5(10)-trien-20-yne-3,17-diol, 19-Nor-17?-pregna-1,3,5(10)-trien-20-yne-3,17-diol, 2-methyl- (7CI), 2-Methyl-19-nor-17?-pregna-1,3,5(10)-trien-20-yne-3,17-diol (2-Methyl-ethinylestradiol), Ethinylestradiol Imp M (EP), 2-Methyl Ethynyl Estradiol. CAS No. 3240-39-9. IUPAC Name: (8R,9S,13S,14S,17R)-17-ethynyl-2,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol. Molecular formula: C21H26O2. Mole weight: 310.43. Catalog: APS3240399. SMILES: Cc1cc2[C@H]3CC[C@@]4(C)[C@@H](CC[C@@]4(O)C#C)[C@@H]3CCc2cc1O. Format: Neat.
4-Methyl Ethynyl Estradiol
4-Methyl Ethynyl Estradiol. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Ethinylestradiol Imp K. (EP), 4-Methyl-19-nor-17?-pregna-1,3,5(10)-trien-20-yne-3,17-diol (4-Methyl-ethinylestradiol), 4-Methyl Ethynyl Estradiol,(17?)-4-Methyl-19-norpregna-1,3,5(10)-trien-20-yne-3,17-diol (9CI). CAS No. 155683-61-7. IUPAC Name: (8R,9S,13S,14S,17R)-17-ethynyl-4,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthrene-3,17-diol. Molecular formula: C21H26O2. Mole weight: 310.43. Catalog: APS155683617. SMILES: Cc1c(O)ccc2[C@H]3CC[C@@]4(C)[C@@H](CC[C@@]4(O)C#C)[C@@H]3CCc12. Format: Neat.
6,7-Dehydro Ethynyl Estradiol
6,7-Dehydro Ethynyl Estradiol. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Ethinylestradiol Imp. I (EP), 19-Nor-17alpha-pregna-1,3,5(10),6-tetraen-20-yne-3,17-diol, 6,7-Didehydroethinylestradiol. CAS No. 67703-68-8. Molecular formula: C20H22O2. Mole weight: 294.39. Catalog: APS67703688. Format: Neat.
6,7-Didehydro Ethynyl Estradiol (Impurity I)
An impurity of Estradiol. Estradiol? is the major estrogen secreted by the premenopausal ovary. Estrogens direct the development of the female genotype in embryogenesis and at puberty. Synonyms: Ethinylestradiol EP Impurity I; 6,7-Dehydroethynylestradiol; 19-Nor-17α-pregna-1,3,5(10),6-tetraen-20-yne-3,17-diol; (17α)-19-Norpregna-1,3,5(10),6-tetraen-20-yne-3,17-diol. Grade: > 95%. CAS No. 67703-68-8. Molecular formula: C20H22O2. Mole weight: 294.40.
6Alpha-Hydroxy Ethynyl Estradiol
6Alpha-Hydroxy Ethynyl Estradiol. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: Ethinylestradiol Imp. E (EP), 19-Nor-17alpha-pregna-1,3,5(10)-trien-20-yne-3,6alpha,17-triol, 6alpha-Hydroxyethinylestradiol. CAS No. 27521-34-2. Pack Sizes: 10MG. Molecular formula: C20H24O3. Mole weight: 312.40. Catalog: APS27521342A. Format: Neat. Shipping: Room Temperature.
6Beta-Hydroxy Ethynyl Estradiol
6Beta-Hydroxy Ethynyl Estradiol. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 6beta-Hydroxyethinylestradiol, 19-Nor-17alpha-pregna-1,3,5(10)-trien-20-yne-3,6beta,17-triol,Ethinylestradiol Imp. F (EP). CAS No. 56324-28-8. Molecular formula: C20H24O3. Mole weight: 312.40. Catalog: APS56324288. Format: Neat.
9,11-Dehydro Ethynyl Estradiol
9,11-Dehydro Ethynyl Estradiol. Uses: For analytical and research use. Group: Impurity standards. Alternative Names: 19-Nor-17alpha-pregna-1,3,5(10),9(11)-tetraen-20-yne-3,17-diol, Ethinylestradiol Imp. B (EP), 9,11-Didehydroethinylestradiol. CAS No. 1231-96-5. IUPAC Name: (8S,13S,14S,17R)-17-ethynyl-13-methyl-7,8,12,14,15,16-hexahydro-6H-cyclopenta[a]phenanthrene-3,17-diol. Molecular formula: C20H22O2. Mole weight: 294.39. Catalog: APS1231965. SMILES: C[C@]12CC=C3[C@@H](CCc4cc(O)ccc34)[C@@H]1CC[C@@]2(O)C#C. Format: Neat.
Estradiol Hemihydrate
Estradiol Hemihydrate. Uses: For analytical and research use. Group: Api standards; british pharmacopoeia; european pharmacopoeia (ph. eur.); impurity standards; pharmaceutical toxicology; pharmacopoeial standards. Alternative Names: beta-Estradiol semihydrate,Estradiol Benzoate Imp. A (EP), Estradiol Valerate Imp. A (EP), Estriol Imp. D (EP), beta-Estradiol hemihydrate, Ethinylestradiol Imp. D (EP) as Hemihydrate, Estradiol Valerate Imp. A (EP) as Hemihydrate, Estradiol Hemihydrate, Estra-1,3,5(10)-triene-3,17-diol (17beta)-, hydrate (2:1) (9CI), Estradiol Benzoate Imp. A (EP) as Hemihydrate, Ethinylestradiol Imp. D (EP), Estriol Imp. D (EP) as Hemihydate. CAS No. 35380-71-3. IUPAC Name: (8R,9S,13S,14S,17S)-13-methyl-6,7,8,9,11,12,14,15,16,17-decahydrocyclopenta[a]phenanthrene-3,17-diol;hydrate. Molecular formula: 2C18H24O2.H2O. Mole weight: 562.78. Catalog: APS35380713. SMILES: O.C[C@]12CC[C@H]3[C@@H](CCc4cc(O)ccc34)[C@@H]1CC[C@@H]2O.C[C@]56CC[C@H]7[C@@H](CCc8cc(O)ccc78)[C@@H]5CC[C@@H]6O. Format: Neat.
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