CAS 1231-96-5

Ethinyl Estradiol Related Compound B (19-Nor-17α-pregna-1,3,5(10),9(11)-tetraen-20-yne-3,17-diol monohydrate)

CAS: 1231-96-5

Estrogens and progestins

Formula: C₂₀H₂₂O₂·H₂O

Color and Shape: White Yellow Powder

Molecular weight: 312.17254

Ref: 45-1260023

9,11-Dehydro ethynyl estradiol

CAS: 1231-96-5

Formula: C₂₀H₂₂O₂

Purity: 95%

Color and Shape: Solid

Molecular weight: 294.3875

Ref: IN-DA009E61

Ethinylestradiol EP Impurity B (Ethinyl Estradiol USP Related Compound B (Free Form))

CAS: 1231-96-5

Formula: C₂₀H₂₂O₂

Molecular weight: 294.39

Ref: 4Z-E-4626

19-Nor-17α-pregna-1,3,5(10),9(11)-tetraen-20-yne-3,17-diol (9,11-Didehydroethinylestradiol)

Controlled Product

CAS: 1231-96-5

Formula: C₂₀H₂₂O₂

Color and Shape: Neat

Molecular weight: 294.39

Ref: 86-MM0123.02

9,11-Dehydro Ethynyl Estradiol

CAS: 1231-96-5

Impurity Ethinylestradiol EP Impurity B
Applications 9,11-Dehydro Ethynyl Estradiol (Ethinylestradiol EP Impurity B) is a degradation product of Ethynyl Estradiol (EE); an impurity of Ethynyl Estradiol (E685100).
Not a dangerous good if item is equal to or less than 1g/ml and there is less than 100g/ml in the package
References Pang, C., et al.: Steroids, 23, 203 (1974), Leese, M., et al.: J. Med. Chem., 49, 7683 (2006), Krstic, N., et al.: Steroids, 72, 406 (2007),

Formula: C₂₀H₂₂O₂

Color and Shape: Neat

Molecular weight: 294.39

Ref: TR-D229610

Ethinylestradiol EP Impurity B

CAS: 1231-96-5

Formula: C₂₀H₂₂O₂

Molecular weight: 294.39

Ref: ST-EA-CP-E21002