7,7-dimethyloctanoyl chloride

7,7-dimethyloctanoyl chloride is an organic compound with the molecular formula C10H19ClO and CAS number 40292-82-8. This acyl chloride derivative features a branched octanoic acid chain with two methyl substituents at the 7-position. With a molecular weight of 190.71 g/mol, it belongs to the family of fatty acid chlorides used primarily as chemical intermediates in organic synthesis for the preparation of esters, amides, and other derivatives.

7,7-dimethyloctanoyl chloride is typically a colorless to pale yellow liquid at room temperature with a characteristic pungent, irritating odor typical of acyl chlorides. As an acyl chloride, it readily reacts with water and alcohols, making it moisture-sensitive. The compound has limited solubility in water due to rapid hydrolysis but is soluble in organic solvents such as dichloromethane, chloroform, and hydrocarbons.

7,7-dimethyloctanoyl chloride is primarily used as a chemical intermediate in pharmaceutical and fine chemical synthesis. It serves as an acylating agent for the preparation of esters, amides, and anhydrides. The compound is particularly valuable in the synthesis of specialized surfactants, polymer additives, and active pharmaceutical ingredients where the branched octanoyl structure provides specific properties. It may also be used in research applications for organic synthesis and material science.

7,7-dimethyloctanoyl chloride requires careful handling due to its acute toxicity (Acute Tox. 2 and 4) and corrosive properties (Skin Corr. 1B). Essential personal protective equipment includes chemical-resistant gloves, safety goggles, face shield, and acid-resistant laboratory coat. Work must be conducted in a well-ventilated area or under a fume hood to avoid inhalation. Avoid contact with skin, eyes, and clothing. Keep away from moisture and incompatible materials.

7,7-dimethyloctanoyl chloride must be stored in a cool, dry place away from moisture, heat, and direct sunlight. The container should be tightly sealed and made of compatible materials resistant to acyl chlorides. Store away from water, alcohols, amines, and bases which can cause vigorous reactions. The storage area should be well-ventilated and equipped with appropriate spill containment measures. Follow local regulations for storing corrosive and toxic substances.

Immediate action is critical due to the compound's corrosive and toxic nature. For skin contact, immediately remove contaminated clothing and rinse with copious amounts of water for at least 15 minutes. For eye contact, flush immediately with water for 15-20 minutes while holding eyelids open. If inhaled, move to fresh air immediately. For ingestion, do not induce vomiting and rinse mouth with water. Seek immediate medical attention in all cases of exposure.

7,7-dimethyloctanoyl chloride must be disposed of as hazardous waste according to local and national regulations. The compound cannot be discharged into sewers or the environment due to its toxicity and corrosive properties. Contact licensed waste disposal companies specialized in handling toxic and corrosive chemicals. Small quantities may be carefully neutralized with appropriate bases under controlled conditions before disposal, but this should only be performed by trained personnel following established protocols.

7,7-dimethyloctanoyl chloride is classified as dangerous goods under ADR regulations as Class 6.1 (Toxic substances), Packing Group II. Transportation requires appropriate packaging, labeling with GHS06 and GHS05 pictograms, and documentation including safety data sheets. Vehicles must comply with ADR requirements for toxic substances. Only trained personnel should handle the transport, and emergency procedures must be readily available. The package must be properly sealed and protected from moisture during transit.

7,7-dimethyloctanoyl chloride is subject to various chemical regulations including REACH registration requirements in Europe and CLP classification as Acute Tox. 2, Acute Tox. 4, and Skin Corr. 1B with danger signal word. The compound is not currently listed as an SVHC (Substance of Very High Concern). Users must comply with occupational safety regulations, environmental protection laws, and proper classification, labeling, and packaging requirements according to GHS standards.

7,7-dimethyloctanoyl chloride is available through OYSI, a specialized European distributor of technical chemicals and pharmaceutical intermediates. OYSI provides high-quality chemical products with proper documentation, safety data sheets, and regulatory compliance support. As a professional chemical supplier, OYSI serves various industries including pharmaceuticals, fine chemicals, and research institutions across Europe. Contact OYSI directly for product availability, specifications, and technical support for your specific application requirements.