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Dimethyl Methyl Phosphonate

CAS 756-79-6C3H9O3PMW 124.08

Dimethyl Methyl Phosphonate (CAS 756-79-6) — formula C3H9O3P, molecular weight 124.08.

Specifications

CAS Number756-79-6
Molecular FormulaC3H9O3P
Molecular Weight124.08
Melting Point<50 °C
Boiling Point358 °F at 760 mmHg (NTP, 1992)
LogP-0.7

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What this product is

Dimethyl Methyl Phosphonate is a chemical compound with CAS registry number 756-79-6 and molecular formula C3H9O3P (molecular weight 124.08).

Identification

CAS number: 756-79-6

Its molecular formula C3H9O3P comprises 3 C, 9 H, 3 O, 1 P atoms.

Also known as: Dimethyl Methyl Phosphonate · Dimethyl methanephosphonate

Frequently Asked Questions

What is the CAS number of Dimethyl Methyl Phosphonate?

The CAS registry number of Dimethyl Methyl Phosphonate is 756-79-6.

What is the molecular formula and molecular weight of Dimethyl Methyl Phosphonate?

Molecular formula C3H9O3P, molecular weight 124.08.

What other names is Dimethyl Methyl Phosphonate known by?

It is also registered under: Dimethyl Methyl Phosphonate, Dimethyl methanephosphonate.

PubChem Public Data

Public-database records for Dimethyl Methyl Phosphonate (CAS 756-79-6), reproduced here for independent cross-checking.

Safety classification and hazard statements

Reported hazard statementsH226 (15.3%), H318 (41.2%), H319 (57.6%), H332 (16%), H340 (82.4%), H361 (10.7%), H227, H351

H226 (15.3%): Flammable liquid and vapor [Warning Flammable liquids]

H318 (41.2%): Causes serious eye damage [Danger Serious eye damage/eye irritation]

Physical description and handling notes

  • Dimethyl methylphosphonate is a clear colorless liquid with a pleasant odor. (NTP, 1992)
  • Liquid
  • Colorless liquid; [Merck Index] Pleasant odor; [CAMEO]
  • Colorless liquid
  • greater than or equal to 100 mg/mL at 70 °F (NTP, 1992)
  • Miscible in alcohol, ether, benzene, acetone, carbon tetrachloride; insoluble in heavy mineral oil

Reported physical properties

沸点358 °F at 760 mmHg (NTP, 1992)
沸点181 °C; 79.5 °C at 20 mm Hg
沸点181 °C @760 [mm Hg]
熔点<50 °C
闪点110 °F (NTP, 1992)
密度1.1507 g/cu cm at 20 °C
密度1.168 @ 20°C
蒸气压1.2 mmHg at 77 °F (NTP, 1992)
蒸气压1.2 [mmHg]
蒸气压0.962 mm Hg at 25 °C

How this substance is indexed

CAS Registry Number756-79-6
PubChem CID12958
分子式C3H9O3P
IUPAC 名称[methoxy(methyl)phosphoryl]oxymethane
UNII（FDA）20Z996230U

Documented uses

  • Used in NMR probe for cell volume, as a flame retardant, and to simulate nerve agents such as sarin; [Merck Index] Used in heavy metal extraction and solvent separation; Also used as a pre-ignition additive for gasoline, an antifoam agent, a plasticizer and stabilizer, a textile conditioner and antistatic agent, and an additive in solvents and hydraulic fluids; [HSDB]
  • Petroleum Production and Refining [Category: Industry]
  • Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
  • Metal Extraction and Refining [Category: Industry]
  • IN HEAVY METAL EXTRACTION & SOLVENT SEPARATION; PRE-IGNITION ADDITIVE FOR GASOLINE; ANTIFOAM AGENT; PLASTICIZER & STABILIZER; TEXTILE CONDITIONER & ANTISTATIC AGENT; ADDITIVE IN SOLVENTS & LOW TEMP HYDRAULIC FLUIDS
  • ... Simulate/s/ the physical and spectroscopic (but not the biologic) properties of anticholinesterase (nerve) agents. Dimethyl methylphosphonate is also used as a flame retardant, a preignition additive for gasoline, an antifoam agent, a plasticizer and stabilizer, a textile conditioner and antistatic agent, and an additive for solvents and low-temperature hydraulic fluids.

Names this substance appears under

DIMETHYL METHYLPHOSPHONATE; 756-79-6; DMMP; Fyrol DMMP; Pyrol dmmp; Dimethylmethylphosphonate; Dimethyl methanephosphonate; Phosphonic acid, methyl-, dimethyl ester; Dimethoxymethylphosphine oxide; NCI-C54762; Methanephosphonic acid dimethyl ester; Methyl phosphonic acid, dimethyl ester; DTXSID0020494; Phosphonic acid, methyl-,dimethyl ester; NSC-62240; DTXCID40494

Computed molecular descriptors

分子量124.08
XLogP3-0.7
氢键供体数0
氢键受体数3
可旋转键数2
精确质量124.02893114
单同位素质量124.02893114
拓扑极性表面积35.5
重原子数7
形式电荷0

Database abstract

Dimethyl Methyl Phosphonate · CAS 756-79-6 · C3H9O3P. UNII 20Z996230U. 沸点: 358 °F at 760 mmHg (NTP, 1992); 沸点: 181 °C; 79.5 °C at 20 mm Hg; 沸点: 181 °C @760 [mm Hg].

Source: PubChem / Wikidata; the batch COA governs where values differ.

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