Cis-11-Eicosenoic Acid CAS 5561-99-9

1. Cis-11-Eicosenoic acid is a monounsaturated omega-9 fatty acid (also known as gondoic acid) primarily used as a reference standard in lipidomics and fatty acid analysis for the identification and quantification of long-chain unsaturated fatty acids in biological samples .
2. Cis-11-Eicosenoic acid CAS 5561-99-9 is employed in nutritional research to study the effects of omega-9 fatty acids on lipid metabolism, cardiovascular health, and inflammatory responses .
3. Cis-11-Eicosenoic acid is utilized in the synthesis of specialty lipids, surfactants, and cosmetic ingredients, where it serves as a building block for emollients and skin-conditioning agents .
4. Researchers use Cis-11-Eicosenoic acid CAS 5561-99-9 as a biochemical tool to investigate fatty acid transport, incorporation into cellular membranes, and the role of very-long-chain fatty acids in metabolic disorders .

1. Cis-11-Eicosenoic acid must be stored in a tightly sealed container under inert atmosphere (nitrogen or argon) at -20°C, protected from light and heat to prevent oxidation .
2. For solution storage, prepare aliquots in tightly sealed vials and store at -20°C for up to 1 month or at -80°C for up to 6 months, avoiding repeated freeze-thaw cycles .
3. Cis-11-Eicosenoic acid CAS 5561-99-9 is classified with GHS hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation), with signal word "Warning" .
4. Personnel must wear chemical-resistant gloves, safety goggles with side-shields, and protective clothing when handling this substance, ensuring adequate ventilation in work areas .

1. Isolate the spill area, ensure adequate ventilation, and wear full personal protective equipment including chemical-resistant gloves, safety goggles, and suitable respirator when Cis-11-Eicosenoic acid is released .
2. For liquid Cis-11-Eicosenoic acid CAS 5561-99-9 spills, contain and collect the product using inert absorbent materials such as sand, diatomite, or universal binders with non-sparking tools, and place into suitable closed containers for disposal .
3. Avoid creating vapors or mists during cleanup to prevent respiratory exposure; prevent the product from entering drains or water courses .
4. Dispose of collected material according to local, state, and federal environmental regulations through licensed chemical destruction or controlled incineration .

1. Cis-11-Eicosenoic acid is a combustible liquid with a flash point of approximately 110°C; under fire conditions, it may decompose, emitting toxic fumes including carbon monoxide, carbon dioxide, and irritating gases .
2. Use water spray, dry chemical powder, carbon dioxide, or alcohol-resistant foam to extinguish fires involving the product; do NOT use a direct water jet as Cis-11-Eicosenoic acid CAS 5561-99-9 may scatter burning material .
3. Firefighters should wear self-contained breathing apparatus in pressure-demand, MSHA/NIOSH approved, and full protective gear when handling burning Cis-11-Eicosenoic acid due to hazardous decomposition gases generated by thermal decomposition .
4. During combustion, may emit irritant and toxic fumes; contain fire runoff to prevent environmental contamination .