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Atomfair Trimethyl Phosphate TMP C3H9O4P CAS 512-56-1

Trimethyl Phosphate (CAS No. 512-56-1) is a high-purity organophosphorus compound with the molecular formula C3H9O4P , widely utilized in research and industrial applications. This colorless, volatile liquid serves as a versatile reagent in organic synthesis, flame retardant formulations, and as a solvent for specialty chemical processes. With a boiling point of approximately 197°C and a density of 1.21 g/cm3, it exhibits excellent solvation properties for polar compounds. Our product is rigorously tested to ensure ≥98% purity (GC), packaged under inert conditions to prevent degradation, and supplied in amber glass bottles or bulk quantities with customizable options. Ideal for nucleophilic substitution…

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Description

Trimethyl Phosphate (CAS No. 512-56-1) is a high-purity organophosphorus compound with the molecular formula C3H9O4P, widely utilized in research and industrial applications. This colorless, volatile liquid serves as a versatile reagent in organic synthesis, flame retardant formulations, and as a solvent for specialty chemical processes. With a boiling point of approximately 197°C and a density of 1.21 g/cm3, it exhibits excellent solvation properties for polar compounds. Our product is rigorously tested to ensure ≥98% purity (GC), packaged under inert conditions to prevent degradation, and supplied in amber glass bottles or bulk quantities with customizable options. Ideal for nucleophilic substitution reactions, electrolyte additives, or as a precursor for advanced material synthesis.

Properties

  • CAS Number: 512-56-1
  • Complexity: 82.4
  • IUPAC Name: trimethyl phosphate
  • InChI: InChI=1S/C3H9O4P/c1-5-8(4,6-2)7-3/h1-3H3
  • InChI Key: WVLBCYQITXONBZ-UHFFFAOYSA-N
  • LogP: log Kow = -0.52 and -0.78
  • Exact Mass: 140.02384576
  • Molecular Formula: C3H9O4P
  • Molecular Weight: 140.07
  • SMILES: COP(=O)(OC)OC
  • Topological: 44.8
  • Monoisotopic Mass: 140.02384576
  • Physical Description: Trimethyl phosphate appears as a pale straw colored liquid. Inhalation may irritate respiratory tract. Vapor or liquid may irritate skin or eyes. Ingestion may irritate the mucous membranes of the gastrointestinal tract.
  • Color/Form: Liquid
  • Odor: Pleasant smelling
  • Boiling Point: 387 °F at 760 mmHg
  • Melting Point: -51 °F
  • Flash Point: greater than 300 °F
  • Solubility: greater than or equal to 100 mg/mL at 68 °F
  • Density: 1.2144 at 68 °F – Denser than water; will sink
  • Vapor Pressure: 1 mmHg at 78.8 °F ; 5 mmHg at 128.7 °F; 10 mmHg at 154.0 °F
  • Henry’s Law Constant: Henry’s Law constant = 7.2X10-9 atm-cu m/mole at 20 °C
  • Stability/Shelf Life: Stable under recommended storage conditions.
  • Refractive Index: Index of refraction = 1.3967 at 20 °C/D
  • Synonyms: TRIMETHYL PHOSPHATE, Trimethylphosphate, Trimethyl orthophosphate, Phosphoric acid, trimethyl ester, Trimethoxyphosphine oxide, Phosphoric acid trimethyl ester, O,O,O-Trimethyl phosphate, Trimethylfosfat, Phosphate, trimethyl-, NCI-C03781, Trimethylfosfat [Czech], CCRIS 610, Methyl phosphate, (MeO)3PO, NSC 58985, HSDB 5090, UNII-Z1E45TMW1Z, EINECS 208-144-8, Z1E45TMW1Z, DTXSID1021403, CHEBI:46324, AI3-05905, TMP (PHOSPHATE), trimethyl phosphoric acid, NSC-58985, (CH3O)3PO, DTXCID101403, TRIMETHYL PHOSPHATE [HSDB], Trimethylfosfat (Czech), Phosphate, trimethyl, O,O,OTrimethyl phosphate, Phosphate, trimethyl ester, Trimethyl orthophosphoric acid, O,O,O-Trimethyl phosphoric acid, 208-144-8, inchi=1/c3h9o4p/c1-5-8(4,6-2)7-3/h1-3h, wvlbcyqitxonbz-uhfffaoysa-n, 512-56-1, TMPO, MFCD00008348, TZZ, CAS-512-56-1, Trimethyl Phosphate (TMP), trim ethyl phosphate, trimethylphosphoric acid, dimethylphosphonomethanol, PO(OMe)3, bmse000774, Trimethyl phosphate, 97%, SCHEMBL19941, P(O)(OMe)3, Trimethyl phosphate, >=99%, WLN: 1OPO&O1&O1, SCHEMBL6972155, CHEMBL1236486, HY-A0108A, P(O)(OCH3)3, NSC58985, Tox21_201576, Tox21_302740, MSK001804, SBB060441, AKOS009029142, AT32972, NCGC00248617-01, NCGC00248617-02, NCGC00256562-01, NCGC00259125-01, CS-0646319, NS00003887, P0271, ST51046615, EN300-19167, Trimethyl phosphate, SAJ first grade, >=95.0%, A804739, Q2623529

Application

Trimethyl Phosphate is extensively employed as a flame retardant intermediate in polymer industries due to its phosphorus content. It serves as a key solvent in lithium-ion battery electrolytes for enhancing conductivity and thermal stability. Researchers also utilize it as a methylating agent in organic synthesis and as a precursor for producing pesticides and pharmaceuticals.

Safety and Hazards

GHS Hazard Statements

  • H302: Harmful if swallowed [Warning Acute toxicity, oral]
  • H315: Causes skin irritation [Warning Skin corrosion/irritation]
  • H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H340: May cause genetic defects [Danger Germ cell mutagenicity]
  • H351: Suspected of causing cancer [Warning Carcinogenicity]

Precautionary Statements

  • P203, P264, P264+P265, P270, P280, P301+P317, P302+P352, P305+P351+P338, P318, P321, P330, P332+P317, P337+P317, P362+P364, P405, and P501

Hazard Classes and Categories

  • Acute toxicity – Category 4
  • Skin corrosion/irritation – Category 2
  • Serious eye damage/eye irritation – Category 2B
  • Germ cell mutagenicity – Category 1B
  • Reproductive toxicity – Category 2
  • Specific target organ toxicity – Single exposure – Category 2
  • Specific target organ toxicity – Repeated exposure – Category 2

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

Patent & Regulatory Compliance

Certain molecules may be protected by active patents or regulatory restrictions.

  • Buyers must independently verify patent status (e.g., via USPTO/EPO/CNIPA) and comply with local laws.
  • Atomfair LLC does not provide legal assurances regarding patent non-infringement or jurisdictional compliance.

Liability Release

By purchasing, the buyer agrees to:

  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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