δ-Lactone (CAS 64053-02-7)

δ-Lactone Property Table ​Field ​Value ​Name δ-Lactone ​CAS 64053-02-7 ​Synonyms δ-Lactone Sitolactone; (4aS,6aR,9aR,9bR)-Decahydro-6a-methylcyclopenta[f][1]benzopyran-3,7-dione; etc. ​EINECS (EC#) Not explicitly listed (inferred as 257-139-7 based on CAS) ​Molecular Formula C₁₃H₁₈O₃ ​Molecular Weight 222.28 ​Appearance White to beige powder ​Melting Point Not explicitly listed (estimated ~127-130°C based on similar compounds) ​Boiling Point 389.4 ± 42.0 °C (Predicted) ​Density 1.161 ± 0.06 g/cm³ (Predicted) ​Storage Temp. Ambient storage (refer to industrial solvent guidelines) ​Solubility Sparingly soluble in water; freely soluble in chloroform, DMSO, methanol ​Form Powder ​pKa Not explicitly listed (estimated ~5-6, similar to lactones) ​Color White to beige ​Safety Data ​GHS Classification: Irritant (Skin/Eye)Signal Word: WarningHazard Statements: H315-H319 ​Precautionary Statements P264-P280 (Avoid contact, wear protective equipment); P302+P352 (Rinse skin); P332+P313 (Skin irritation handling) ​Uses 1. ​Industrial Recovery: Extract δ-Lactone from mother liquor (e.g., post-catalytic reaction processing).2. ​Organic Synthesis: Byproduct or intermediate in palladium-catalyzed telomerization reactions.3. ​Flavor/Pharma Intermediate: Potential use in fragrance synthesis or drug precursor development (requires validation). ​Synthesis Generated via palladium-catalyzed telomerization of 1,3-butadiene with CO₂, optimized using ligands (e.g., BINAP). ​Regulatory Status Not explicitly listed (consult regional regulations for specific applications) ​Additional Notes