Description

Estra-1,3,5(10),7-Tetraen-17-One, 3-(Sulfooxy)-, Sodium Salt is a chemically modified steroid derivative, specifically the sodium salt of a sulfated estrogen analogue. This compound is of significant interest for its role as a key synthetic intermediate or reference standard in advanced pharmaceutical research and development. It is primarily utilized by R&D chemists and production specialists in the pharmaceutical and biotechnology sectors for the synthesis of novel therapeutic agents, particularly in the field of endocrinology and hormone-related therapies.

Application

• Pharmaceutical Intermediate: A critical building block for the synthesis of complex steroid-based active pharmaceutical ingredients (APIs).
• Research & Development: Serves as a high-purity reference standard and starting material in medicinal chemistry for developing new drug candidates.
• Biochemical Research: Used in studies investigating estrogen receptor interactions, enzyme inhibition, and metabolic pathways.
• Analytical Standard: Employed as a certified reference material (CRM) in HPLC, LC-MS, and other analytical methods for quality control and method validation.

Basic Information

Product Name	Estra-1,3,5(10),7-Tetraen-17-One, 3-(Sulfooxy)-, Sodium Salt
CAS No.	16680-47-0
Molecular Formula	C18H21NaO5S
Molecular Weight	372.41 g/mol
Synonyms	Sodium Estra-1,3,5(10),7-tetraene-3,17-diol 3-sulfate; 3-Sulfooxyestra-1,3,5(10),7-tetraen-17-one sodium salt; Estrone 3-sulfate sodium salt (δ7,8-dehydro); δ7-Estrone 3-sulfate sodium salt; Sodium δ7-estrone sulfate; 17-Oxoestra-1,3,5(10),7-tetraen-3-yl sulfate sodium salt
EINECS	Contact for details

Quality Control

Our Estra-1,3,5(10),7-Tetraen-17-One, 3-(Sulfooxy)-, Sodium Salt is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation (IR, NMR), to ensure it meets exacting research-grade specifications. A detailed Certificate of Analysis (COA) is provided with every shipment, guaranteeing traceability and consistent batch-to-batch quality.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept in a desiccated environment to maintain stability and purity. For long-term storage, consider using inert atmosphere packaging.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Residue on Ignition	≤ 2.0%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.