Methylphosphonic acid

Modify Date: 2025-08-21 20:26:41

Methylphosphonic acid Structure
Methylphosphonic acid structure
Common Name Methylphosphonic acid
CAS Number 993-13-5 Molecular Weight 96.022
Density 1.5±0.1 g/cm3 Boiling Point 265.2±23.0 °C at 760 mmHg
Molecular Formula CH5O3P Melting Point 103-105ºC
MSDS Chinese USA Flash Point 114.2±22.6 °C
Symbol GHS05 GHS07
GHS05, GHS07
Signal Word Danger

 Names

Name methylphosphonic acid
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.5±0.1 g/cm3
Boiling Point 265.2±23.0 °C at 760 mmHg
Melting Point 103-105ºC
Molecular Formula CH5O3P
Molecular Weight 96.022
Flash Point 114.2±22.6 °C
Exact Mass 95.997627
PSA 67.34000
LogP -2.02
Vapour Pressure 0.0±1.1 mmHg at 25°C
Index of Refraction 1.431
InChIKey YACKEPLHDIMKIO-UHFFFAOYSA-N
SMILES CP(=O)(O)O
Storage condition ?20°C
Water Solubility H2O: soluble2.88 g in 30 mL, clear, colorless

 Safety Information

Symbol GHS05 GHS07
GHS05, GHS07
Signal Word Danger
Hazard Statements H302-H314
Precautionary Statements P280-P305 + P351 + P338-P310
Personal Protective Equipment Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges
Hazard Codes C:Corrosive;
Risk Phrases R34
Safety Phrases S26-S36/37/39-S45
RIDADR UN 3261 8/PG 2
WGK Germany 3
Packaging Group II
HS Code 2931900090

 Synthetic Route

 Customs

HS Code 2931900090
Summary 2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

 Articles29

More Articles
Determination of nerve agent degradation products by capillary electrophoresis using field-amplified sample stacking injection with the electroosmotic flow pump and contactless conductivity detection.

J. Chromatogr. A. 1216(31) , 5911-6, (2009)

In the present study, field-amplified sample stacking injection using the electroosmotic flow pump (FAEP) was developed for the capillary electrophoretic separation of the four nerve agent degradation...

Carbonic anhydrase inhibitors. Interaction of isozymes I, II, IV, V, and IX with organic phosphates and phosphonates.

Bioorg. Med. Chem. Lett. 15 , 1683-6, (2005)

The interaction of five human carbonic anhydrase (hCA, EC 4.2.1.1) isozymes, that is, hCA I, II, IV, V, and IX with a small library of phosphonic acids/organic phosphates, including methylphosphonic a...

p-Tolyl isocyanate derivatization for analysis of CWC-related polar degradation products by mass spectrometry.

Anal. Bioanal. Chem 406(21) , 5093-102, (2014)

Most of the precursors and/or degradation products related to the Chemical Weapons Convention (CWC) are polar. Identification of these molecules in environmental samples provides clues regarding the a...

 Methylphosphonic acidBioassay

View more

Name: Binding affinity towards human membrane associated carbonic anhydrase IV
Source: ChEMBL
Target: Carbonic anhydrase 4
External Id: CHEMBL830248
Name: Binding affinity towards human cytosolic carbonic anhydrase II
Source: ChEMBL
Target: Carbonic anhydrase 2
External Id: CHEMBL828765
Name: Inhibitory activity against Escherichia coli Alkaline Phosphatase; no inhibition
Source: ChEMBL
Target: Alkaline phosphatase, tissue-nonspecific isozyme
External Id: CHEMBL640396
Name: Conversion of compound to its pyrophosphate assessed as acid dissociation constant (s...
Source: ChEMBL
Target: N/A
External Id: CHEMBL3224000
Name: Inhibitory activity against Tyrosine phosphatase from Yersinia (Yop protein)
Source: ChEMBL
Target: Protein tyrosine phosphatase receptor type C-associated protein
External Id: CHEMBL812679
Name: Inhibitory activity against Serine/Threonine Protein phosphatase 2C (PP2C)
Source: ChEMBL
Target: N/A
External Id: CHEMBL769202
Name: Inhibitory activity against Serine/Threonine Protein Phosphatase (Lambda protein phos...
Source: ChEMBL
Target: Serine/threonine-protein phosphatase
External Id: CHEMBL705380
Name: Agonist activity at rat GPR41 expressed in Saccharomyces cerevisiae MMY22 co-expressi...
Source: ChEMBL
Target: Free fatty acid receptor 3
External Id: CHEMBL3881355
Name: Inhibition of Human Placental alkaline Phosphatase (PLAP)
Source: ChEMBL
Target: Alkaline phosphatase, germ cell type
External Id: CHEMBL765525
Name: Binding affinity owards recombinant human transmembrane carbonic anhydrase IX
Source: ChEMBL
Target: Carbonic anhydrase 9
External Id: CHEMBL829122
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 Synonyms

Methanephosphonic acid
methyl-Phosphonic acid
Methylphosphonate
EINECS 213-607-2
PHOSPHONOMETHYL GROUP
MFCD00002137
Phosphonic acid, methyl-,
Methylphosphonic acid
Phosphonic acid,methyl
methylphosphononic acid
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