Description

19-Hydroxy Substance S CAS NO 510-65-6 is a significant steroidal intermediate with a hydroxyl group at the C-19 position. This functional group is crucial for the synthesis of various bioactive steroid derivatives, including corticosteroids and other specialized hormones. It is an essential building block for pharmaceutical R&D and production, serving the needs of fine chemical manufacturers and advanced steroid synthesis facilities globally.

Application

• Pharmaceutical Intermediate: A key precursor in the multi-step synthesis of corticosteroid APIs (Active Pharmaceutical Ingredients).
• Steroid Hormone Research: Used in laboratory settings for the development and study of novel steroid-based therapeutics.
• Fine Chemical Synthesis: Employed as a chiral building block for creating complex, high-value steroidal molecules.
• Reference Standard: Serves as a high-purity analytical standard for quality control and method development in pharmaceutical analysis.

Basic Information

Product Name	19-Hydroxy Substance S
CAS No.	510-65-6
Molecular Formula	C21H30O3
Molecular Weight	330.46 g/mol
Synonyms	19-Hydroxy-11-deoxycorticosterone; 19-Hydroxy DOC; 19-Hydroxy-11-deoxycortisol; 19-Hydroxy-17-deoxycorticosterone; 19-Hydroxypregn-4-ene-3,20-dione; 19-Hydroxy Substance S; 19-OH-DOC; 19-Hydroxydeoxycorticosterone
EINECS	208-119-9

Quality Control

Our 19-Hydroxy Substance S 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 exacting standards for pharmaceutical intermediate use. Certificates of Analysis (COA) with full traceability are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This compound is hygroscopic (moisture-sensitive); ensure the container is kept tightly sealed in a low-humidity environment to maintain stability and purity.

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%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%

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