Description

Zilpaterol-13C3 is a stable isotope-labeled analog of the β-adrenergic agonist Zilpaterol, where three carbon atoms are replaced with the carbon-13 isotope. This compound is essential as an internal standard in quantitative mass spectrometry, providing unmatched accuracy and reliability for trace-level analysis. It is a critical tool for researchers and quality control laboratories in the pharmaceutical, veterinary medicine, and food safety sectors, where precise measurement of Zilpaterol and its metabolites is required.

Application

• Mass Spectrometry Internal Standard: Primary use as a quantitative reference standard in LC-MS/MS and GC-MS methods for absolute quantification of Zilpaterol.
• Veterinary Drug Residue Analysis: Critical for monitoring Zilpaterol residues in animal tissues, urine, and feed to ensure compliance with food safety regulations.
• Pharmacokinetic & Metabolism Studies: Enables accurate tracking of drug absorption, distribution, metabolism, and excretion (ADME) in research.
• Method Development & Validation: Used to develop, calibrate, and validate robust analytical methods in regulatory and research settings.
• Quality Control & Assurance: Employed in pharmaceutical QC labs to verify the purity and concentration of Zilpaterol hydrochloride active pharmaceutical ingredients (APIs).
• Forensic & Doping Control Analysis: Supports the detection and confirmation of Zilpaterol misuse in sports and racing animals.

Basic Information

Product Name	Zilpaterol-13C3
CAS No.	1613445-19-4
Molecular Formula	C1413C3H20N2O
Molecular Weight	~263.3 g/mol (exact mass varies with isotopic enrichment)
Synonyms	Zilpaterol (13C3); [13C3]-Zilpaterol; 4-Amino-α-[(tert-butylamino)methyl]-3,5-dichlorobenzyl Alcohol-13C3; Zilmax-13C3 (labeled analog); Zilpaterol Hydrochloride-13C3 (labeled salt form); (RS)-Zilpaterol-13C3; β-Adrenergic Agonist-13C3 (labeled); Isotopically Labeled Zilpaterol Internal Standard
EINECS	Not listed for labeled compound. Contact for details.

Quality Control

Every batch of Zilpaterol-13C3 is manufactured and analyzed under strict quality systems. We provide comprehensive Certificates of Analysis (COA) that detail isotopic purity (atom % 13C), chemical purity, and identity confirmation. Our quality commitment ensures the material meets the stringent requirements for use as a certified reference material in regulated analytical environments.

Storage

Preserve in a tightly closed container, protected from light. Store at 2-8°C in a dry, cool place. This product is hygroscopic (moisture-sensitive). Allow the sealed vial to equilibrate to room temperature before opening to minimize moisture uptake.

Specification

Item	Specification
Appearance	White to off-white solid
Identification (IR)	Conforms to structure
Identification (MS)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Isotopic Purity	≥ 99 atom % 13C (on three labeled positions)
Chemical Purity	≥ 95%
Water Content (KF)	≤ 1.0%
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.