Ortho phthalaldehyde/OPA

Cas 643-79-8

Ortho phthalaldehyde/OPA Cas 643-79-8

Chemical Properties Of Ortho phthalaldehyde/OPA Cas 643-79-8

  • Ortho phthalaldehyde (OPA, MF: C8H6O2, MW: 134.13) is a pale yellow crystalline solid. It is soluble in water and alcohols, highly reactive, and exhibits strong bactericidal and cross‑linking properties. It is stable under neutral to weakly acidic conditions.
  • Phthalaldehyde is a highly effective medical disinfectant, fluorescent analytical reagent, pharmaceutical intermediate, and raw material for organic synthesis, with core applications in medical disinfection, amino acid detection, drug synthesis, and materials preparation.

Product Description Of Ortho phthalaldehyde/OPA Cas 643-79-8

Item Specification
Melting point 55–58 °C (lit.)
Boiling Point 83–84 °C (0.7501 mmHg)
Density 1.13
Flash point >230 °F
Stability It remains relatively stable when stored in a light-protected, sealed container; however, it decomposes easily when exposed to light, heat, or oxidizing agents, and may discolor if left exposed to air for an extended period.
Solubility 3 g/100 mL at 20 °C; soluble in diisopropyl ether, 5 g/100 mL deionized water, 20 g/100 mL chloroform, or 20 g/100 mL acetone..

Product Application Of Ortho phthalaldehyde/OPA Cas 643-79-8

  1. Ortho phthalaldehyde is used as a high‑efficiency disinfectant for medical equipment and endoscopes
  2. OPA applied as a derivatization reagent in amino acid analysis and biochemical detection
  3. Phthalaldehyde serves as a cross‑linking agent in polymer and coating materials
  4. O phthalaldehyde is used in water treatment as a biocide and microbial inhibitor
    Employed in organic synthesis as an important intermediate
Packaging Method Of Ortho phthalaldehyde/OPA Cas 643-79-8
Product packaging bags
Bagged product shipping diagram 1
Cardboard barrel
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Jinan Jinbang Chemical Co., Ltd., strategically located within the New Materials Industrial Park in Tianqiao District, Jinan City, Shandong Province, stands as a prominent chemical innovator since its establishment in 2015. Operating from a modern, expansive 37,500 m² manufacturing facility, we are dedicated to the research & development, production, and global distribution of high-performance chemical solutions.

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