Date published: 2025-10-20

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9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (CAS 35948-25-5)

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Alternate Names:
DOPO
CAS Number:
35948-25-5
Molecular Weight:
216.17
Molecular Formula:
C12H9O2P
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide is a yellow-orange crystalline solid, slightly soluble in both water and most organic solvents. Its structure, featuring an oxo group, imparts a high degree of polarity, rendering it a promising candidate for a multitude of analytical and synthetic applications. It serves as a reagent in the synthesis of other phosphorus-containing compounds, functions as an analytical tool for the determination of minute phosphorus quantities, and contributes as a photosensitizer. 9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide has been established as an effective probe for dissecting the molecular behavior of specific biological systems. 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide is an high effective componant of flame retardant epoxy resins.


9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide (CAS 35948-25-5) References

  1. Synthesis of Trispirocyclotriphosphazenes with Oxaphosphorine Rings and Their Crystal and Molecular Structures.  |  Tada, Y., et al. 2021. Inorg Chem. 60: 5014-5020. PMID: 33733777
  2. Correction to 'Improving the Durability and Performance of Sulfonated Poly(arylene ether)s by Introducing 9,10-Dihydro-9-oxa-10-phosphaphenanthrene 10-Oxide Structure for Fuel Cell Application'.  |  Kang, HH. and Lee, DH. 2022. ACS Omega. 7: 3834. PMID: 35128291
  3. Flame Retardancy and Thermal Degradation Behaviors of Thiol-Ene Composites Containing a Novel Phosphorus and Silicon-Containing Flame Retardant.  |  Wu, F., et al. 2022. Polymers (Basel). 14: PMID: 35215733
  4. Flame Retardancy Properties and Rheological Behavior of PP/DiDOPO Conjugated Flame Retardant Composites.  |  Zhang, D., et al. 2022. Front Chem. 10: 933716. PMID: 35774856
  5. Hierarchical Ti3C2Tx@BPA@PCL for flexible polyurethane foam capable of anti-compression, self-extinguishing and flame-retardant.  |  Yin, Z., et al. 2022. J Colloid Interface Sci. 626: 208-220. PMID: 35797867
  6. Optical and Flame-Retardant Properties of a Series of Polyimides Containing Side Chained Bulky Phosphaphenanthrene Units.  |  Homocianu, M., et al. 2022. Int J Mol Sci. 23: PMID: 36361962
  7. Pyrolysis Kinetics of Lignin-Based Flame Retardants Containing MOFs Structure for Epoxy Resins.  |  Yao, T., et al. 2023. Molecules. 28: PMID: 36985674
  8. Editorial: Critical role of spectroscopic analysis for the development of π-conjugated materials for optoelectronics.  |  Ma, J., et al. 2023. Front Chem. 11: 1182156. PMID: 37065824
  9. Flame Retardancy of Nylon 6 Fibers: A Review.  |  Guo, X., et al. 2023. Polymers (Basel). 15: PMID: 37177307
  10. The Synergistic Effect of Triazine and Phosphaphenanthrene Units on the Physico-Chemical Behavior of Polyimides.  |  Butnaru, I. and Damaceanu, MD. 2023. Molecules. 28: PMID: 37241813
  11. Engineering of Silica Mesoporous Materials for CO2 Adsorption.  |  Tumurbaatar, O., et al. 2023. Materials (Basel). 16: PMID: 37297313
  12. Preparation of Naphthalene-Based Flame Retardant for High Fire Safety and Smoke Suppression of Epoxy Resin.  |  Huang, Z., et al. 2023. Molecules. 28: PMID: 37298763
  13. A High-Efficient DOPO-Based Flame Retardant as a Co-Curing Agent for Simultaneously Enhancing the Fire Safety and Mechanical Properties of Epoxy Resin.  |  Ou, M., et al. 2023. Macromol Rapid Commun. e2300262. PMID: 37335812

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, 25 g

sc-352987
25 g
$27.00

9,10-Dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, 100 g

sc-352987A
100 g
$65.00