DL-Mandelic Acid/to Mandelic Acid

Chinese Name: DL-Mandelic Acid (Synonyms: Amygdalic Acid, Phenylglycolic Acid, α-Hydroxyphenylacetic Acid)
English Name: DL-Mandelic acid; (±)-Mandelic acid
Key Identifiers: CAS No. 90-64-2; EINECS No. 202-007-6; Molecular Formula: C₈H₈O₃; Relative Molecular Mass: 152.15
Appearance and Properties: White orthorhombic flaky crystals, discolored and decomposed upon exposure to light; Melting point: 119–121℃, Density: approx. 1.30; Solubility in water: approx. 150 g/L at 20℃, pKa: approx. 3.85 at 25℃; Enantiomers: R-isomer with mp 133℃ ([α]ᴅ −159.73°, in ethanol), S-isomer with mp 133.8℃ ([α]ᴅ +156.57°, in water); The racemate undergoes gradual racemization at around 160℃.

Pharmaceuticals and Intermediates: DL-Mandelic acid (mandelic acid) is used in the synthesis of drugs such as cyclandelate and hydroxybenzazole; it also serves as a high-efficiency preservative and professional chemical reagent in pharmaceutical R&D and production.

Other Applications: DL-Mandelic acid (mandelic acid) acts as a special reagent for zirconium detection, a key agent for copper determination, and an essential raw material in organic synthesis; it also functions as an effective bactericide, and can be used as a short-term biomarker for styrene exposure in occupational health monitoring.

Specifications (for reference): DL-Mandelic acid (mandelic acid) presents as white crystalline powder; Assay: ≥99.0%; Melting point: 118–121℃; Loss on drying: ≤0.5%; Residue on ignition: ≤0.2%; Water-insoluble matter: ≤0.2% (internal control standard).

Packaging: 25 kg per fiber drum (lined with plastic bag) for bulk supply of DL-Mandelic acid (mandelic acid); customized specifications like 1 kg/5 kg are available upon customer request for small-batch trials and laboratory use.

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