| Phosphorus Compounds |
| Drug Substances, Agrochemicals and Their Intermediates |
| Specialty Resin (Raw Materials for) |
| Other Organic/Inorganic Chemicals |

Product Name
Chemical Structure
Use
Phosphorus Trichloride
Manuf. of drug substances, agrochemicals, dyestuffs, flame retardants, and their intermediates. As a chlorinating agent.
Phosphorus Oxychloride or Phosphoryl Chloride
Manuf. of drug substances, agrochemicals, dyestuffs, flame retardants, and their intermediates. As a chlorinating agent.
Phosphorus Pentachloride
Manuf. of drug substances, agrochemicals, dyestuffs, flame retardants, and their intermediates. As a chlorinating agent.
TCPP
(diphosphoryl chloride or pyrophophoryl tetrachloride)
Manuf. of nucleic acids, steroids. As a phosphorylating agent in manuf. of vitamins.
EPDC
(ethyl dichlorophosphate or
ethyl phosphorodichloridate)
Manuf. of drug substances and agrochemicals
DPCP
(diphenyl chlorophosphate or diphenyl phosphorochloridate)
Manuf. of drug substances and agrochemicals.
1,2-Phenylene Phosphorochloridite
Manuf. of drug substances
DPPA
(diphenyl azidophosphate)
Manuf. of drug substances.
(Hydroxyalkylidene) -
bisphosphonic Acids
(and their salts)
As a sequestering and chelating agent in water purification. As a descaler.
Nitrilotris(alkylphophonic Acids) (and their salts)
As a sequestering and chelating agent in water purification. As a descaler.


| Phosphorus Compounds |
| Drug Substances, Agrochemicals and Their Intermediates |
| Specialty Resin (Raw Materials for) |
| Other Organic/Inorganic Chemicals |

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