Description

Lymecycline CAS NO 992-21-2 is a semi-synthetic tetracycline antibiotic derived from tetracycline, known for its enhanced stability and bioavailability. This compound is valued for its broad-spectrum antibacterial activity, making it a critical active pharmaceutical ingredient (API) in therapeutic formulations. It is primarily required by pharmaceutical manufacturers for the production of oral antibiotic medications targeting a wide range of bacterial infections.

Application

• Pharmaceutical API: Primary use as the active ingredient in oral antibiotic capsules and tablets for human medicine.
• Veterinary Medicine: Formulation into medicated feeds or treatments for bacterial infections in livestock and companion animals.
• Clinical Research: Serves as a reference standard or biochemical tool in antimicrobial susceptibility studies and pharmacological research.
• Drug Intermediate: Used in the synthesis of more complex tetracycline derivatives or prodrugs.
• Topical Preparations: Incorporated into creams or ointments for the treatment of skin infections, such as acne vulgaris.

Basic Information

Product Name	Lymecycline
CAS No.	992-21-2
Molecular Formula	C₂₉H₃₆N₄O₈
Molecular Weight	602.63 g/mol
Synonyms	Lymecycline; Tetralysal; N-Lysinomethyltetracycline; N-(5-Hydroxy-4-methyl-4-oxopentan-2-yl)-4-(dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxonaphthacene-2-carboxamide; 4-(Dimethylamino)-1,4,4a,5,5a,6,11,12a-octahydro-3,6,10,12,12a-pentahydroxy-6-methyl-1,11-dioxo-N-(5-hydroxy-4-methyl-4-oxopentan-2-yl)-2-naphthacenecarboxamide; Lysine-methylene tetracycline; Antibiotic 352A
EINECS	213-593-4

Quality Control

Our Lymecycline is manufactured under strict quality management systems, ensuring it meets high-purity standards suitable for pharmaceutical applications. Each batch is tested against rigorous specifications, including identity, potency, and impurity profiles, to ensure compliance with relevant pharmacopeial guidelines. Certificates of Analysis (COA) documenting full testing results are available upon request to support your regulatory and quality assurance needs.

Storage

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

Specification

Item	Specification
Appearance	Yellow to light yellow crystalline powder
Identification (IR)	Conforms
Identification (HPLC)	Conforms
Assay (HPLC)	98.0% - 102.0% (on anhydrous basis)
Water (KF)	≤ 5.0%
Residue on Ignition	≤ 0.2%
Heavy Metals	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%
Microbial Limits	Conforms to EP/JP requirements

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