

share
Rac 8α-[δ-5(10)]-Norgestrel CAS NO 5541-87-7
Unit Price:
CAS No.:5541-87-7
Grade:Pharmacy Grade
Content:99.9%
Brand:Customizable
Packaging:Customizable
Description
Rac 8α-[δ-5(10)]-Norgestrel is a synthetic progestin steroid, a key intermediate in the synthesis of various pharmaceutical actives. This compound is valued for its structural role in the development of hormonal therapies and active pharmaceutical ingredients (APIs). It is primarily utilized by research institutions and manufacturers in the pharmaceutical industry for the development and production of contraceptive and hormone replacement medications.
Application
- Pharmaceutical Intermediate: A critical building block in the synthesis of advanced progestin-based APIs.
- Contraceptive Drug Development: Used in research and manufacturing of oral contraceptive formulations.
- Hormone Replacement Therapy (HRT): Serves as a precursor in the production of medications for menopausal symptom management.
- Steroid Chemistry Research: A valuable reference standard and starting material for novel steroid synthesis in academic and industrial R&D.
- Veterinary Pharmaceuticals: Employed in the development of hormonal treatments for animal health.
Basic Information
| Product Name | Rac 8α-[δ-5(10)]-Norgestrel |
| CAS No. | 5541-87-7 |
| Molecular Formula | C₂₁H₂₈O₂ |
| Molecular Weight | 312.45 g/mol |
| Synonyms | 8α-(δ⁵⁽¹⁰⁾)-Norgestrel; 13β-Ethyl-17β-hydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one; (±)-13β-Ethyl-17β-hydroxy-18,19-dinor-17α-pregn-4-en-20-yn-3-one; DL-8α-(δ⁵⁽¹⁰⁾)-Norgestrel; Racemic 8α-(δ⁵⁽¹⁰⁾)-Norgestrel; 17α-Ethynyl-13β-ethyl-17β-hydroxy-4-gonen-3-one; 17α-Ethynyl-18,19-dinor-17β-hydroxy-4-androsten-3-one, 13β-ethyl- |
| EINECS | 226-891-4 |
Quality Control
Our Rac 8α-[δ-5(10)]-Norgestrel is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets high-grade standards suitable for pharmaceutical research and development. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee traceability and compliance with your specifications.
Storage
Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from heat and incompatible materials.
Specification
| Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Identification (IR) | Conforms to reference spectrum |
| Identification (HPLC) | Retention time matches reference standard |
| Assay (HPLC) | ≥ 98.0% |
| Related Substances (HPLC) | Total impurities ≤ 2.0% Any single impurity ≤ 1.0% |
| Loss on Drying | ≤ 0.5% |
| Residue on Ignition | ≤ 0.1% |
Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.
Hot Related Products


Progesterone CAS NO 57-83-0


Promegestone CAS NO 34184-77-5


Premarin CAS NO 12126-59-9


Estratetraenol CAS NO 1150-90-9


Promethoestrol CAS NO 130-73-4


Diethylstilbestrol Dimethyl Ether CAS NO 130-79-0


Diethylstilbestrol Dipropionate CAS NO 130-80-3


Quinestrol CAS NO 152-43-2


Dydrogesterone CAS NO 152-62-5


(17R)-17-Hydroxy-13-Propyl-18,19-Dinorpregn-4-En-20-Yn-3-One CAS NO 1044-96-8


Anordiol CAS NO 1045-30-3


1,3,5(10), 9(11)-Estratetraen-3-Ol-17-One CAS NO 1089-80-1


Quinestradol CAS NO 1169-79-5


3,5(10)-Triene-3,16-Diol, (16.Beta.)-Estra-1 CAS NO 1225-58-7


Etynodiol CAS NO 1231-93-2


9,11-Dehydro Ethynyl Estradiol CAS NO 1231-96-5


(8R,9S,10R,13S,14S,17S)-13,17-Diethyl-17-Hydroxy-1,2,6,7,8,9,10,11,12,14,15,16-Dodecahydrocyclopenta[A]Phenanthren-3-One CAS NO 1235-15-0


17-Ethyl-17-Hydroxy-10,13-Dimethyl-2,6,7,8,9,11,12,14,15,16-Decahydro-1H-Cyclopenta[A]Phenanthren-3-One CAS NO 1235-97-8


19-Nortestosterone, 17-Ethynyl-10-Hydroxy- CAS NO 1236-00-6


Gestonorone Caproate CAS NO 1253-28-7
Why choose US
Trusted Manufacturer
With our own production facilities, we ensure consistent quality, reliable supply, and full traceability.
Rigorous Quality Assurance
Each batch undergoes strict QC, accompanied by COA, MSDS, and full compliance with international standards.
Advanced R&D Expertise
Our in-house lab drives process innovation, new product development, and tailored synthesis solutions.






