"2024 Spot Goods Hot Sale 288579-82-8/4857-06-1/299-42-3. Contact me: TEL/WHATSAPP +447752052341. CAS 7331-52-4 (S)-3-Hydroxy-γ-butyrolactone C4H6O3 Colorless Oil Type: Syntheses Material Intermediates Appearance: Colorless To Light Yellow Sample: Availiable Certification: Avaliable Shipping Way: Express Delivery: DHL/TNT/Fedex/UPS;Ocean Shipping High Light: BDO Chemical CAS 7331-52-4, CAS 7331-52-4, BDO Liquid C4H6O3"