Description

1,3,5(10)-Estratrien-1-Methyl-3-Ol-17-One is a high-purity steroid intermediate with the CAS number 4011-48-7. This compound is a critical building block in the synthesis of various steroidal pharmaceuticals and active pharmaceutical ingredients (APIs). It is essential for manufacturers in the pharmaceutical and life sciences sectors requiring reliable, high-quality raw materials for research, development, and production. Our supply ensures consistent quality and traceability to support your stringent process requirements.

Application

• Pharmaceutical Intermediate: A key precursor in the synthesis of steroidal hormones and related therapeutic agents.
• Active Pharmaceutical Ingredient (API) Development: Used in research and manufacturing of steroid-based APIs.
• Biochemical Research: Serves as a standard or reagent in metabolic pathway studies and endocrinology research.
• Veterinary Medicine: Employed in the formulation of steroidal treatments for animals.
• Reference Standard: Used in analytical laboratories for method development, validation, and quality control testing.
• Fine Chemical Synthesis: A versatile building block for creating complex, high-value steroid derivatives.

Basic Information

Product Name	1,3,5(10)-Estratrien-1-Methyl-3-Ol-17-One
CAS No.	4011-48-7
Molecular Formula	C19H26O2
Molecular Weight	286.41 g/mol
Synonyms	1-Methyl-3-hydroxyestra-1,3,5(10)-trien-17-one; 1-Methylestrone; 1-Methyl-3-hydroxyestra-1,3,5(10)-trien-17-one; 1-Methyl-3-hydroxy-1,3,5(10)-estratrien-17-one; 1-Methyl-3-hydroxyestra-1,3,5(10)-trien-17-one; 1-Methyl-3-hydroxy-1,3,5(10)-estratrien-17-one; 1-Methyl-3-hydroxyestra-1,3,5(10)-trien-17-one; 1-Methyl-3-hydroxy-1,3,5(10)-estratrien-17-one
EINECS	Contact for details

Quality Control

Our 1,3,5(10)-Estratrien-1-Methyl-3-Ol-17-One is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets high-grade specifications suitable for pharmaceutical applications. Certificates of Analysis (COA) are provided with every shipment, detailing all critical quality attributes. We adhere to cGMP principles where applicable to support our global customer base.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; therefore, containers must be kept tightly sealed and stored away from direct light and moisture sources to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 0.5%
Related Substances (HPLC)	Total impurities ≤ 2.0%
Residual Solvents (GC)	Complies with ICH guidelines

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