Pharmaceutical Materials

Atropic acid

Pharmaceutical Materials 2025-03-02

CAS Number: 492-38-6

Molecular Formula: C9H8O2

Molecular Weight: 148.16 g/mol

Appearance: White to off-white solid

Melting Point: 106-107°C

Boiling Point: ~267°C (with partial decomposition)

Usage: As an organic and pharmaceutical intermediate.

Aspect	Details
Name	Atropic Acid
Common Synonyms	2-Phenylacrylic Acid, α-Methylenebenzeneacetic Acid, 2-Phenylprop-2-enoic Acid
CAS No.	492-38-6
Molecular Formula	C₉H₈O₂
Molecular Weight	148.16 g/mol
Physical Properties	Appearance: White to off-white crystalline powder Melting Point: 106-107 °C Boiling Point: ~267 °C (partial decomposition) Solubility: Slightly soluble in DMSO and methanol Density: 1.141 g/cm³ (approximate)
Chemical Properties	Contains a phenyl ring and an α,β-unsaturated carboxylic acid group Undergoes typical acrylic acid reactions (e.g., polymerization, addition reactions) Photosensitive; degrades under UV light
Applications	Used as an organic synthesis intermediate for pharmaceuticals and agrochemicals Employed in fragrance chemistry for floral and spicy notes Utilized in polymer research for material development
Safety Information	GHS Hazard Statements: H315 (causes skin irritation), H319 (causes serious eye irritation) Precautionary Statements: P264. P280. P302+P352 Store in a cool, dry place away from oxidizing agents

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Atropic acid

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