Description

(17R)-19-Norpregn-4-En-20-Yne-3ξ,17-Diol Diacetate CAS NO 6785-71-3 is a high-purity synthetic steroid intermediate of significant importance in pharmaceutical research and development. This compound serves as a critical building block for the synthesis of more complex steroidal molecules, enabling the exploration of novel therapeutic agents. It is primarily sought after by research institutions and pharmaceutical companies engaged in the development of hormone therapies and other specialized active pharmaceutical ingredients (APIs).

Application

• Pharmaceutical Intermediate: A key precursor in the multi-step synthesis of advanced steroidal drugs and active pharmaceutical ingredients (APIs).
• Hormone Research: Used in biochemical and pharmacological research to study hormone receptor interactions and metabolic pathways.
• Process Development: Employed in the development and optimization of scalable synthetic routes for complex steroid molecules.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method validation in pharmaceutical laboratories.
• Academic Research: Utilized in university and institutional labs for synthetic organic chemistry studies and novel compound discovery.

Basic Information

Product Name	(17R)-19-Norpregn-4-En-20-Yne-3ξ,17-Diol Diacetate
CAS No.	6785-71-3
Molecular Formula	C24H32O4
Molecular Weight	384.51 g/mol
Synonyms	19-Norpregn-4-en-20-yne-3,17-diol, 3,17-diacetate, (17R)-; 17α-Ethynyl-19-nortestosterone 3,17-diacetate; 17α-Ethynylestr-4-en-17β-ol-3-one diacetate; Norethisterone Diacetate; Norpregneninolone Diacetate; NSC 9565; (17R)-17-Hydroxy-19-norpregn-4-en-20-yn-3-yl acetate
EINECS	Contact for details

Quality Control

Our (17R)-19-Norpregn-4-En-20-Yne-3ξ,17-Diol Diacetate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via IR and NMR spectroscopy, to ensure it meets the stringent requirements for pharmaceutical research applications. A detailed Certificate of Analysis (COA) is provided with every shipment, documenting all critical quality attributes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at controlled room temperature (typically 15-25°C). Keep away from heat, open flames, and incompatible materials. Due to its light-sensitive nature, handling and storage should minimize exposure to direct light.

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	≤ 0.5%
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.