Description

C18 Ceramide CAS NO 2304-81-6 is a high-purity, long-chain ceramide, a vital lipid molecule essential for skin barrier function and cellular signaling. This compound is critical for formulating advanced skincare and pharmaceutical products that require high bioactivity and stability. It is primarily sought after by manufacturers in the cosmetics, personal care, and nutraceutical industries for its proven efficacy in enhancing skin hydration and protecting against environmental stressors.

Application

• Premium Skincare Formulations: A key active ingredient in anti-aging creams, serums, and moisturizers to restore the skin's lipid barrier and improve moisture retention.
• Pharmaceutical Topicals: Used in dermatological preparations for treating conditions like eczema, psoriasis, and dry skin by supporting skin repair.
• Hair Care Products: Incorporated into shampoos, conditioners, and treatments to strengthen hair, reduce breakage, and improve shine and manageability.
• Nutraceutical Supplements: Utilized in lipid-based supplement delivery systems and as a functional ingredient for internal health benefits.
• Biomedical Research: Serves as a standard or reagent in lipidomics research, cell biology studies, and the development of lipid-based drug delivery vehicles.
• Cosmeceutical Actives: A fundamental component in advanced cosmeceutical products targeting skin rejuvenation and photoprotection.

Basic Information

Product Name	C18 Ceramide
CAS No.	2304-81-6
Molecular Formula	C36H71NO3
Molecular Weight	565.96 g/mol
Synonyms	N-Stearoyl-D-erythro-sphingosine; N-(Octadecanoyl)-sphing-4-enine; N-Octadecanoylsphingosine; Ceramide (d18:1/18:0); Ceramide NS; C18 Ceramide (d18:1/18:0); Sphingosine, N-stearoyl-; Phytosphingosine derivative
EINECS	218-980-8

Quality Control

Our C18 Ceramide is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. We adhere to cGMP guidelines where applicable, and our quality control includes rigorous testing via HPLC, NMR, and mass spectrometry. A comprehensive Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee compliance with your specific application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store at -20°C or below under an inert atmosphere (e.g., nitrogen or argon) for long-term stability. This product is hygroscopic (moisture-sensitive) and easily oxidized; therefore, it must be handled in a dry environment and sealed immediately after use to prevent degradation. For short-term use, store desiccated at 2-8°C.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to reference standard
Identification (HPLC)	Conforms to reference standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 10 ppm
Residual Solvents (GC)	Meets ICH guidelines
Microbial Limits	Meets USP <61> / Ph. Eur. 2.6.12

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