Trimethyl Phosphite (TMPi)
CAS # 121-45-9

Trimethyl Phosphite (P(OMe)₃) is a colorless, pungent liquid organophosphorus compound with the molecular formula C₃H₉O₃P. It is widely used as a reagent and intermediate in organic synthesis, particularly in the pharmaceutical, agrochemical, and polymer industries. To meet varying industry requirements, the product is offered in three distinct grades: Pharma Grade, which features high purity and low metal content suitable for sensitive pharmaceutical processes; Agrochemical Grade, designed with high purity for use in crop protection formulations; and Stabilizer Grade, which offers standard purity for general industrial applications.
Product Category
PHOSPHORUS DERIVATIVES
Short Names
TMPi
Synonyms
Methyl Phosphite, Phosphorous Acid, Trimethoxyphosphine, Trimethyl Ester, Trimethyl-phosphite
Applications
Agrochemicals | Optical Brighteners | Flame Retardants | PVC Stabilizers | Oil Lubricants | Antioxidants | Addictive
Grades
Pharma Grade, Agrochemical Grade, Stabilizer Grade
Packaging
200 kg HDPE, ISO tanks
Downloads
Trimethyl Phosphite (TMPi) SDS
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