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Substance Name: Sodium methanearsonate
RN: 2163-80-6
UNII: 600QCW45IV
InChIKey: JITOKQVGRJSHHA-UHFFFAOYSA-M

Classification Codes

  • Agricultural Chemical
  • Herbicide
  • Mutation Data
  • Organometallic
  • Skin / Eye Irritant

Molecular Formulas

  • C-H4-As-Na-O3
  • C-H4-As-O3.Na
  • C-H5-As-O3.Na

Molecular Weight

  • 161.9516
 
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Names and Synonyms

Name of Substance

  • Monomethylarsonic acid
  • Sodium methanearsonate

Synonyms

  • Ansar 170
  • Ansar 170L
  • Ansar 529
  • Ansar 529 HC
  • Ansar 6.6
  • Arsonic acid, methyl-, monosodium salt
  • Asazol
  • Bueno
  • Bueno 6
  • Caswell No. 582
  • CCRIS 4676
  • Daconate
  • Daconate 6
  • Dal-E-Rad
  • Dal-E-Rad 120
  • Drexar
  • EINECS 218-495-9
  • EPA Pesticide Chemical Code 013803
  • Gepiron
  • Herb-All
  • Herban M
  • HSDB 754
  • Merge
  • Merge 823
  • Mesamate
  • Mesamate concentrate
  • Mesamate H.C.
  • Mesamate-400
  • Mesamate-600
  • Methanearsonic acid, monosodium salt
  • Methylarsenic acid, sodium salt
  • Methylarsonat monosodny
  • Methylarsonat monosodny [Czech]
  • Methylarsonic acid, sodium salt
  • Monate
  • Monex
  • Monoban
  • Monomethylarsonic acid sodium salt
  • Monosodium acid methanearsonate
  • Monosodium acid metharsonate
  • Monosodium methanearsonate
  • Monosodium methanearsonic acid
  • Monosodium methylarsonate
  • MSMA
  • NCI-C60071
  • Phyban
  • Phyban H.C.
  • Silvisar 550
  • Sodium acid methanearsonate
  • Sodium hydrogen methylarsonate
  • Sodium methylarsonate
  • Super Arsonate
  • Target MSMA
  • Trans-vert
  • UNII-600QCW45IV
  • Weed 108
  • Weed-hoe-108

Systematic Names

  • Arsonic acid, methyl-, monosodium salt
  • Methanearsonic acid, monosodium salt
  • Monosodium methanearsenate
  • Sodium methylarsonate

Superlist Names

  • Methanearsonic acid, monosodium salt
  • Monosodium methanearsonate

Registry Numbers

CAS Registry Number

  • 2163-80-6

FDA UNII

  • 600QCW45IV

Related Registry Number

  • 124-58-3 (Parent)

System Generated Number

  • 0002163806

Molecular Formulas

Molecular Formulas

  • C-H4-As-Na-O3
  • C-H4-As-O3.Na
  • C-H5-As-O3.Na

Molecular Formula Fragments

  • C-H4-As-O3
  • C-H5-As-O3
  • COMPONENT
  • Na

Structure Descriptors

InChI

1S/CH5AsO3.Na/c1-2(3,4)5;/h1H3,(H2,3,4,5);/q;+1/p-1

InChIKey

JITOKQVGRJSHHA-UHFFFAOYSA-M

Smiles

C[As](=O)(O)[O-].[Na+]

Toxicity

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
cattle LD50 oral 230mg/kg (230mg/kg)   Bulletin of Environmental Contamination and Toxicology. Vol. 40, Pg. 119, 1988.
mammal (species unspecified) LD50 unreported 50mg/kg (50mg/kg)   "Chemistry of Pesticides," Melnikov, N.N., New York, Springer-Verlag New York, Inc., 1971Vol. -, Pg. 260, 1971.
mouse LD50 oral 300mg/kg (300mg/kg)   Bulletin of Environmental Contamination and Toxicology. Vol. 22, Pg. 143, 1979.
rabbit LC50 inhalation > 20gm/m3/4H (20000mg/m3)   Farm Chemicals Handbook. Vol. -, Pg. C52, 1991.
rabbit LD50 oral 102mg/kg (102mg/kg) GASTROINTESTINAL: "HYPERMOTILITY, DIARRHEA"

BEHAVIORAL: MUSCLE WEAKNESS

KIDNEY, URETER, AND BLADDER: URINE VOLUME DECREASED
Bulletin of Environmental Contamination and Toxicology. Vol. 40, Pg. 119, 1988.
rabbit LD50 skin 2500mg/kg (2500mg/kg)   Farm Chemicals Handbook. Vol. -, Pg. C211, 1991.
rat LC50 inhalation > 20gm/m3 (20000mg/m3)   Farm Chemicals Handbook. Vol. -, Pg. C211, 1991.
rat LD50 oral 700mg/kg (700mg/kg)   Farm Chemicals Handbook. Vol. -, Pg. C211, 1991.

Physical Properties

Physical Property Value Units Temp (deg C) Source
pKa Dissociation Constant 9.02 (none)   EXP
log P (octanol-water) -3.10E+00 (none)   EXP
Water Solubility 5.80E+05 mg/L 20 EXP
Vapor Pressure 7.50E-08 mm Hg 25 EXP
Henry's Law Constant 2.76E-14 atm-m3/mole 25 EST
Atmospheric OH Rate Constant 3.30E-13 cm3/molecule-sec 25 EST

Physical property data is provided to ChemIDplus by SRC, Inc.