CAS No.144-21-8,Disodium methylarsonate Suppliers,MSDS download

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Basic Information

Molecular Structure:
CAS No.:	144-21-8
Name:	Disodium methylarsonate
Article Data:	9

Formula:	CH₃AsNa₂O₃
Molecular Weight:	183.934
Synonyms:	Methanearsonicacid, disodium salt (8CI);Ansar 184;Ansar 8100;Arifen;Arrhenal;Arsenil;Arsinyl;Arsynal;Cacodyl New;Cralo-E-rad;DMA;DMA 100;DSMA;Diarsen;Disodium methanearsonate;Disodium methylarsenate(2-);Disodium methylarsonate;Disomear;Methar;Metharsan;Metharsinat;Neo-Asycodile;Sodar;Somar;Stenosine;Tonarsan;Tonarsin;
EINECS:	205-620-7
Density:	1.15
Melting Point:	132-139oC
Boiling Point:	393.3 °C at 760 mmHg
Flash Point:	205.8 °C
Hazard Symbols:	Xn
Risk Codes:	22
Safety:	26
PSA:	63.19000
LogP:	-0.15340

Synthetic route

: 77-78-1
dimethyl sulfate

: 144-21-8
Arrhenal

Conditions

Conditions	Yield
With trisodium arsenite at 85℃;

: arsenic(III) trioxide

: 74-88-4
methyl iodide

: 144-21-8
Arrhenal

Conditions

Conditions	Yield
In not given in alkaline soln.; 75°C;;
In not given in alkaline soln.; 75°C;;

: 74-88-4
methyl iodide

As2O3: As2O3

: 144-21-8
Arrhenal

Conditions

Conditions	Yield
With methanol; sodium hydroxide Reinigung des Produktes durch Versetzen mit Barytwasser, Behandeln mit CO2 und nochmaliges Faellen mit Alkohol; Ausbeute an reinem Dinatriumsalz mindestens 95prozent;

: 144-21-8
Arrhenal

: 7207-97-8
methyldiiodoarsine

Conditions

Conditions	Yield
With hydrogenchloride; sulfur dioxide; potassium iodide for 6h;	56%

: 144-21-8
Arrhenal

4-oxy-3-amino-phenyl-arsin-oic acid: 4-oxy-3-amino-phenyl-arsin-oic acid

alkaline Na2S2O4: alkaline Na2S2O4

4-oxy-3-amino-benzenarsenomethane: 4-oxy-3-amino-benzenarsenomethane

...Expand

: 144-21-8
Arrhenal

hydrogen: hydrogen

A sodium carbonate: sodium carbonate

B sodium pyromethylarsinate: sodium pyromethylarsinate

Conditions

Conditions	Yield
at 140℃;

...Expand

Raw Materials

77-78-1

74-88-4

Downstream Products

7207-97-8

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Consensus Reports

EPA Genetic Toxicology Program. Arsenic and its compounds are on the Community Right-To-Know List.

Standards and Recommendations

OSHA PEL: TWA 0.5 mg(As)/m³
ACGIH TLV: BEI: 35 µ (As)/L inorganic arsenic and methylated metabolites in urine

Specification

The Disodium methanearsenate is an organic compound with the formula CH₃AsNa₂O₃. The systematic name of this chemical is disodium methylarsonate. With the CAS registry number 144-21-8, it is also named as arsonic acid, As-methyl-, sodium salt (1:2). The product's categories are Alpha Sort; Arsenic Pesticides & Metabolites; D; DAlphabetic; DIO - DIZ; Herbicides; Pesticides & Metabolites.

Physical properties about Disodium methanearsenate are: (1)ACD/LogP: -1.75; (2)ACD/LogD (pH 5.5): -3.39; (3)ACD/LogD (pH 7.4): -4.98; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 1; (7)ACD/KOC (pH 7.4): 1; (8)#H bond acceptors: 3; (9)#H bond donors: 2; (10)Polar Surface Area: 57.53 Å²; (11)Flash Point: 205.8 °C; (12)Enthalpy of Vaporization: 74.36 kJ/mol; (13)Boiling Point: 393.3 °C at 760 mmHg; (14)Vapour Pressure: 8.17E-08 mmHg at 25°C.

When you are using this chemical, please be cautious about it as the following:
It is if swallowed. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

You can still convert the following datas into molecular structure:
(1)SMILES: [Na+].[Na+].[O-][As]([O-])(=O)C
(2)InChI: InChI=1/CH5AsO3.2Na/c1-2(3,4)5;;/h1H3,(H2,3,4,5);;/q;2*+1/p-2
(3)InChIKey: SDIXRDNYIMOKSG-NUQVWONBAA
(4)Std. InChI: InChI=1S/CH5AsO3.2Na/c1-2(3,4)5;;/h1H3,(H2,3,4,5);;/q;2*+1/p-2
(5)Std. InChIKey: SDIXRDNYIMOKSG-UHFFFAOYSA-L

The toxicity data is as follows:

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Source
mouse	LD50	intraperitoneal	> 1gm/kg (1000mg/kg)	National Technical Information Service. Vol. AD691-490,
mouse	LD50	oral	1150mg/kg (1150mg/kg)	Japan Pesticide Information. Vol. (3), Pg. 5, 1970.
rabbit	LD50	skin	10gm/kg (10000mg/kg)	Farm Chemicals Handbook. Vol. -, Pg. C119, 1991.
rat	LC50	inhalation	> 22100mg/m³/4 (22100mg/m³)	Farm Chemicals Handbook. Vol. -, Pg. C119, 1991.
rat	LD50	oral	821mg/kg (821mg/kg)	Fundamental and Applied Toxicology. Vol. 7, Pg. 299, 1986.