Description

Tamsulosin CAS NO 50505-67-4 is a selective α-1A and α-1D adrenergic receptor antagonist. This compound is of critical importance as the active pharmaceutical ingredient (API) in medications used to treat benign prostatic hyperplasia (BPH). Pharmaceutical manufacturers and research organizations require this high-purity intermediate for the formulation of finished dosage forms and for ongoing clinical research.

Application

• Primary use as the Active Pharmaceutical Ingredient (API) in medications for Benign Prostatic Hyperplasia (BPH).
• Formulation of extended-release capsules and other oral solid dosage forms.
• Use in pharmaceutical research and development for new therapeutic applications.
• Manufacturing of generic drug products containing tamsulosin hydrochloride.
• Reference standard for analytical testing and quality control in pharmaceutical laboratories.
• Precursor in the synthesis of related pharmaceutical intermediates and derivatives.

Basic Information

Product Name	Tamsulosin
CAS No.	50505-67-4
Molecular Formula	C₂₀H₂₈N₂O₅S
Molecular Weight	408.51 g/mol
Synonyms	Tamsulosin Hydrochloride; (R)-5-[2-[[2-(2-Ethoxyphenoxy)ethyl]amino]propyl]-2-methoxybenzenesulfonamide; YM-12617; Flomax (brand name); Harnal; Omnic; Pradif; Secotex; Tamsin
EINECS	Contact for details

Quality Control

Our Tamsulosin is manufactured under strict quality systems to ensure it meets the rigorous standards required for pharmaceutical use. We adhere to ICH Q7 guidelines and can supply material compliant with USP/EP monograph specifications. A comprehensive Certificate of Analysis (COA) is provided with each batch, detailing purity, identity, and impurity profiles.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and must be kept in a dry environment to maintain stability and potency.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference standard
Identification (HPLC)	Retention time matches reference
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
Water Content (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 1.5%
Optical Rotation	Specific range provided on COA

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