# Pharmaceutical intermediate

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(S)-(-)-4-Chloromethyl-2,2-dimethyl-1,3-dioxolane (CAS 60456-22-6)

2025-05-30

(S)-(-)-4-Chloromethyl-2,2-dimethyl-1,3-dioxolane (CAS 60456-22-6) is a chiral ketal for pharmaceutical synthesis. High enantiomeric purity enables nucleophilic substitution.. (S)-(-)-4-氯甲基-2,2-二甲基-1,3-二氧戊环（CAS 60456-22-6）是一种手性缩酮化合物，用于药物合成。高对映体纯度支持亲核取代反应。 Basic Information ​Physical and Chemical Properties Property Data/Description ​Boiling Point 63°C (37 mmHg) ​Density 1.103 g/mL (25°C) ​Melting Point Stable under 2–8°C storage ​Solubility Miscible with chloroform, ethyl acetate; slightly soluble in water ​Optical Activity α²⁴/D = -42º (neat, 24°C) ​Flash Point 54.5°C (closed cup) ​Applications ​Safety Information

(S)-1-Acetamido-3-chloropropan-2-yl acetate (CAS 183905-31-9)

2025-05-28

(S)-1-乙酰氨基-3-氯丙烷-2-基乙酸酯（CAS 183905-31-9）是利奈唑胺合成关键中间体，白色粉末，熔点123-127°C。作为羧酸保护基衍生物，广泛用于抗耐药菌抗生素研发，市场价格约1-3元/克。 (S)-1-Acetamido-3-chloropropan-2-yl acetate (CAS 183905-31-9) is a critical intermediate for Linezolid synthesis, a white powder with a melting point of 123–127°C. As an acetylated protecting group derivative, it is widely used in developing antibiotics against resistant bacteria, priced at ~1–3 CNY/g. (S)-1-Acetamido-3-chloropropan-2-yl acetate Information 1. Basic Chemical Properties 2. Applications 3. Safety & Storage 4. Production & Supply Chain 5. Market & Pricing (S)-1-乙酰氨基-3-氯丙烷-2-基乙酸酯: 1. 基本化学性质 2. 应用领域 3. 安全与储存 4. 生产与供应链 5. 市场与价格

N-benzyloxycarbonyl-3-fluoro-4-morpholinoaniline （CAS 168828-81-7)

2025-05-28

N-苄氧羰基-3-氟-4-吗啉基苯胺（CAS 168828-81-7）是利奈唑胺合成关键中间体，白色粉末，熔点123-127°C。作为羧酸保护基衍生物，广泛用于抗耐药菌抗生素研发，市场价格约2-3元/克。N-Benzyloxycarbonyl-3-Fluoro-4-Morpholinoaniline (CAS 168828-81-7) is a critical intermediate for Linezolid synthesis, a white powder with a melting point of 123–127°C. As a benzyl carbamate derivative, it is widely used in developing antibiotics against resistant bacteria,  N-Benzyloxycarbonyl-3-Fluoro-4-Morpholinoaniline Comprehensive Information 1. Basic Chemical Properties 2. Applications 3. Safety & Storage 4. Production & Supply Chain 5. Market & Pricing N-苄氧羰基-3-氟-4-吗啉基苯胺 1. 基本化学性质 2. 应用领域 3. 安全与储存 4. 生产与供应链 5. 市场与价格

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