Description

Alfentanil Hydrochloride is a potent, short-acting synthetic opioid analgesic. It is a critical pharmaceutical active ingredient valued for its rapid onset and short duration of action, making it essential for precise anesthetic control. This compound is primarily required by the pharmaceutical industry for the formulation of injectable anesthetic and analgesic products used in surgical and intensive care settings.

Application

• As the active pharmaceutical ingredient (API) in injectable anesthetic formulations.
• For use in general anesthesia, particularly for short surgical procedures.
• As an analgesic component in balanced anesthesia techniques.
• For patient-controlled analgesia (PCA) systems in postoperative pain management.
• In intensive care units (ICUs) for sedation and analgesia of ventilated patients.
• As a reference standard in analytical and quality control laboratories.
• For pharmaceutical research and development of new analgesic formulations.

Basic Information

Product Name	Alfentanil Hydrochloride
CAS No.	71124-01-1
Molecular Formula	C21H32N6O3 • HCl
Molecular Weight	452.98 g/mol
Synonyms	Alfentanil HCl; Alfentanil Hydrochloride; Alfentanil Monohydrochloride; N-[1-[2-(4-Ethyl-5-oxo-4,5-dihydro-1H-tetrazol-1-yl)ethyl]-4-(methoxymethyl)-4-piperidinyl]-N-phenylpropanamide Hydrochloride; R 39209; Rapifen (as hydrochloride salt)
EINECS	Contact for details

Quality Control

Our Alfentanil Hydrochloride is manufactured under strict quality systems suitable for pharmaceutical use. It is tested to meet exacting standards for identity, purity, and potency, with specifications aligned with major pharmacopoeial requirements. A comprehensive Certificate of Analysis (COA) is provided with each batch, detailing results for assay, related substances, residual solvents, and other critical parameters.

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 prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms
Identification (HPLC)	Retention time corresponds to reference standard
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
Related Substances (HPLC)	Total impurities ≤ 2.0% Any individual impurity ≤ 0.5%
Water (KF)	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm
Residual Solvents (GC)	Complies with ICH Q3C
Microbial Enumeration	Complies with Ph. Eur. 2.6.12 / USP <61>

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