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Cas Database

Name	Methylhydroxylamine	EINECS	N/A
CAS No.	593-77-1	Density	1.0003
PSA	32.26000	LogP	-0.01410
Solubility	N/A	Melting Point	87.5°C
Formula	CH5 N O	Boiling Point	55.67°C (rough estimate)
Molecular Weight	47.0568	Flash Point	N/A
Transport Information	N/A	Appearance	N/A
Safety	Poison by intraperitoneal route. Probably a severe irritant to the eyes, skin, and mucous membranes. Mutation data reported. When heated to decomposition it emits toxic fumes of NO_x. See also AMINES.	Risk Codes	N/A
Molecular Structure		Hazard Symbols	N/A
Synonyms	Hydroxylamine,N-methyl- (6CI,7CI,8CI); Methylhydroxylamine; N-Hydroxymethanamine;N-Hydroxymethylamine; N-Methylhydroxyamine; N-Methylhydroxylamine; b-Methylhydroxylamine	Article Data	24

Methylhydroxylamine Chemical Properties

Molecule structure of Methylhydroxylamine (CAS NO.593-77-1) :

IUPAC Name: N-methylhydroxylamine
Molecular Weight: 47.0565 g/mol
Molecular Formula: CH₅NO
Density: 0.916 g/cm³
Melting Point: 87.5 deg C
Boiling Point: 69.4 °C at 760 mmHg
Flash Point: 41.9 °C
Index of Refraction: 1.376
Molar Refractivity: 11.81 cm³
Molar Volume: 51.3 cm³
Polarizability: 4.68*10^-24 cm³
Surface Tension: 26.5 dyne/cm
Enthalpy of Vaporization: 36.27 kJ/mol
Vapour Pressure: 96.6 mmHg at 25 °C
pKa Dissociation Constant: 5.96
log P (octanol-water): -0.760
Water Solubility: 5.99E+05 mg/L
Henry's Law Constant: 1.52E-08 atm-m³/mole
Atmospheric OH Rate Constant: 6.43E-11 cm³/molecule-sec
XLogP3-AA: -0.7
H-Bond Donor: 2
H-Bond Acceptor: 2
Exact Mass: 47.037114
MonoIsotopic Mass: 47.037114
Topological Polar Surface Area: 32.3
Heavy Atom Count: 3
Complexity: 4.8
Canonical SMILES: CNO
InChI: InChI=1S/CH5NO/c1-2-3/h2-3H,1H3
InChIKey of Methylhydroxylamine (CAS NO.593-77-1) : CPQCSJYYDADLCZ-UHFFFAOYSA-N

Methylhydroxylamine Toxicity Data With Reference

1.	mmo-bcs 1 mol/L	MUREAV Mutation Research. 4 (1967),517.
2.	oms-bcs 10 mmol/L	MUREAV Mutation Research. 4 (1967),517.
3.	cyt-mus:emb 50 µmol/L	JNCIAM Journal of the National Cancer Institute. 32 (1964),667.
4.	cyt-ham:oth 50 µmol/L	JNCIAM Journal of the National Cancer Institute. 32 (1964),667.
5.	ipr-mus LDLo:188 mg/kg	JNCIAM Journal of the National Cancer Institute. 32 (1964),667.

Methylhydroxylamine Consensus Reports

EPA Genetic Toxicology Program.

Methylhydroxylamine Safety Profile

Poison by intraperitoneal route. Probably a severe irritant to the eyes, skin, and mucous membranes. Mutation data reported. When heated to decomposition it emits toxic fumes of NO_x. See also AMINES.

Methylhydroxylamine Specification

Methylhydroxylamine (CAS NO.593-77-1) is also called 4-04-00-03299 (Beilstein Handbook Reference) ; BRN 1730792 ; N-Hydroxymethylamine ; N-Methylhydroxylamine ; NCI-C60066 ; n-Methylhydroxylamine ; Hydroxylamine, N-methyl- ; Methanamine, N-hydroxy- (9CI) .

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