Description

Ritodrine Hydrochloride CAS NO 23239-51-2 is a selective β2-adrenergic receptor agonist, primarily recognized for its tocolytic properties. Its primary commercial value lies in its critical role as an active pharmaceutical ingredient (API) for the formulation of medications used to manage preterm labor. This compound is essential for pharmaceutical manufacturers, research institutions, and contract development and manufacturing organizations (CDMOs) focused on women's health and obstetric care.

Application

• Pharmaceutical API: Primary use as the active ingredient in injectable and oral formulations for uterine relaxation and the management of preterm labor (tocolysis).
• Research Chemical: Used in biochemical and pharmacological research to study β2-adrenergic receptor mechanisms, smooth muscle physiology, and tocolytic drug development.
• Reference Standard: Serves as a high-purity analytical standard in quality control laboratories for method development, validation, and assay of commercial drug products.
• Formulation Development: Employed in pre-formulation and formulation studies for developing new drug delivery systems, including controlled-release formulations.

Basic Information

Product Name	Ritodrine Hydrochloride
CAS No.	23239-51-2
Molecular Formula	C17H21NO3 • HCl
Molecular Weight	323.81 g/mol
Synonyms	Ritodrine HCl; (±)-Erythro-1-(4-Hydroxyphenyl)-2-{[2-(4-hydroxyphenyl)ethyl]amino}propan-1-ol Hydrochloride; Yutopar; Prempar; Anpart; Pre-Par; Uterelax; NDC 0081-0745
EINECS	Contact for details

Quality Control

Our Ritodrine Hydrochloride is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure it meets stringent specifications for identity, purity, and potency, suitable for pharmaceutical applications. A detailed Certificate of Analysis (COA) is provided with each shipment, confirming compliance with relevant in-house or pharmacopeial standards (e.g., USP, EP).

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
Water (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity: ≤ 0.5% Total impurities: ≤ 1.5%
Specific Rotation	Contact for details

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