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Name	N-Methylhydroxylamine hydrochloride	EINECS	224-181-2
CAS No.	4229-44-1	Density	1.36 g/cm3
PSA	32.26000	LogP	0.78790
Solubility	0.1 g/mL in water, clear, very faintly yellow	Melting Point	86-88 °C(lit.)
Formula	CH₆ClNO	Boiling Point	69.4 °C at 760 mmHg
Molecular Weight	83.5177	Flash Point	41.9 °C
Transport Information	UN 1759	Appearance	White to almost white crystals or cryst. powder
Safety	26-36-24/25	Risk Codes	36/37/38
Molecular Structure		Hazard Symbols	Xi
Synonyms	Hydroxylamine,N-methyl-, hydrochloride (6CI,7CI,8CI);Methanamine, N-hydroxy-, hydrochloride(9CI);Methylhydroxylamine hydrochloride;Methylhydroxylammonium chloride;N-Hydroxy-N-methanamine hydrochloride;N-Hydroxy-N-methylammonium chloride;N-Hydroxymethanamine hydrochloride;N-Methylhydroxylammonium chloride;	Article Data	11

N-Methylhydroxylamine hydrochloride Synthetic route

: 41106-02-9
C-(2-nitrophenyl)-N-methyl-nitrone

A: 4229-44-1
N-methylhydroxyamine hydrochloride

B: 3717-25-7, 4836-00-4, 6635-41-2
2-nitrobenzaldehyde oxime

Conditions

Conditions	Yield
With hydroxylamine hydrochloride In methanol; diethyl ether at 20℃; for 4h;	A 98% B n/a

: 67036-74-2, 67036-80-0
4-(N-methylnitrono)-2,2,5,5-tetramethyltetrahydrofuran-3-one E-isomer

A: 14744-18-4
2,2,5,5-Tetramethyl-furan-3,4-dione

B: 4229-44-1
N-methylhydroxyamine hydrochloride

Conditions

Conditions	Yield
With hydrogenchloride Heating;	A 46% B 94%
With hydrogenchloride Heating;	A 43% B 94%
With hydrogenchloride Product distribution; Heating;	A 43% B 94%

: 75-52-5
nitromethane

: 4229-44-1
N-methylhydroxyamine hydrochloride

Conditions

Conditions	Yield
With ammonium chloride; zinc In water for 0.5h;
With ammonium chloride; zinc In water at 0 - 15℃;

: 7647-01-0
hydrogenchloride

: 7500-79-0
N-methyl-diphenyl-nitrone

A: 119-61-9
benzophenone

B: 4229-44-1
N-methylhydroxyamine hydrochloride

Conditions

Conditions	Yield
Hydrolysis;

: 80653-57-2
N,O-Dimesyl-N-methylhydroxylamin

A: 110-88-3
1,3,5-Trioxan

B: 50-00-0
formaldehyd

C: 593-77-1
N-Methylhydroxylamine

D: 4229-44-1
N-methylhydroxyamine hydrochloride

E: 2386-57-4
methanesulfonic acid sodium salt

F NH3: NH3

Conditions

Conditions	Yield
With sodium hydroxide In water Mechanism; Product distribution; hydrolysis with basic, neutral and acidic aqu. solutions;	A 5 % Spectr. B n/a C 1 % Spectr. D n/a E 33 % Spectr. F n/a

...Expand

: 314768-38-2, 919112-42-8
(Z)-C-(3,4-dimethoxyphenyl)-N-methyl-nitrone

A: 2169-98-4, 39627-82-2
3,4-Dimethoxy-benzaldehyde oxime

B: 4229-44-1
N-methylhydroxyamine hydrochloride

Conditions

Conditions	Yield
With hydroxylamine hydrochloride In methanol; diethyl ether at 20℃; for 4h;

: 593-77-1
N-Methylhydroxylamine

: 4229-44-1
N-methylhydroxyamine hydrochloride

Conditions

Conditions	Yield
With hydrogenchloride In water at 25℃; Cooling with ice;	333.4 g

: 4229-44-1
N-methylhydroxyamine hydrochloride

: 555-16-8
4-nitrobenzaldehdye

: 16089-71-7, 57414-31-0, 97792-07-9
N-(p-nitrobenzylidene)methylamine N-oxide

Conditions

Conditions	Yield
With 3 A molecular sieve at 20℃; for 0.25h;	100%
With sodium hydroxide; silica gel at 20℃; for 0.166667h;	96%
With sodium hydrogencarbonate In dichloromethane for 0.1h; microwave irradiation;	95%

: 4229-44-1
N-methylhydroxyamine hydrochloride

: 552-89-6
2-nitro-benzaldehyde

: 41106-02-9
α-(2-nitrophenyl)-N-methylnitrone

Conditions

Conditions	Yield
With 3 A molecular sieve at 20℃; for 0.25h;	100%
With sodium hydroxide; silica gel at 20℃; for 0.166667h;	98%
With potassium carbonate In methanol Reflux;	96.5%
With ethanol; potassium acetate

: 4229-44-1
N-methylhydroxyamine hydrochloride

: 88176-86-7
3a-(3,4-dimethoxyphenyl)-5,5-(ethylenedioxy)-3,3a,4,5,6,7-hexahydro-2H-inden-2-one

: 91713-15-4
3a-(3,4-dimethoxyphenyl)-5,5-(ethylenedioxy)-3,3a,4,5,6,7-hexahydro-2H-inden-2-one N-methylnitrone

Conditions

Conditions	Yield
With sodium acetate In ethanol for 40h; Heating;	100%

N-Methylhydroxylamine hydrochloride Chemical Properties

Molecular Formula: CH₆ClNO
Molecular Weight: 83.52
EINECS: 224-181-2
Polar Surface Area: 12.47 Å²
Flash Point: 41.9 °C
Sensitive Hygroscopic
Melting Point: 86-88 °C(lit.)
Enthalpy of Vaporization: 36.27 kJ/mol
Boiling Point: 69.4 °C at 760 mmHg
Vapour Pressure: 96.6 mmHg at 25°C
IUPAC Name: N-methylhydroxylamine hydrochloride
Solubility: H₂O: 0.1 g/mL, clear, very faintly yellow
Water Solubility of N-Methylhydroxylamine hydrochloride (CAS NO.4229-44-1): soluble
Synonyms of N-Methylhydroxylamine hydrochloride (CAS NO.4229-44-1): Methanamine,n-hydroxy-,Hydrochloride ; N-hydroxy-methanaminhydrochloride ; N-methylhydroxyaminehydrochloride ; Hydroxylaminomethane hydrochloride ; N-methylhydroxylamine hcl ; N-methylhydroxylamine hydrochloride ; N-methylhydroxylammonium chloride ; N-methylhydroxylaminehydrochloride,98%
Following is the molecular structure of N-Methylhydroxylamine hydrochloride (CAS NO.4229-44-1):

N-Methylhydroxylamine hydrochloride Safety Profile

Safety Information of N-Methylhydroxylamine hydrochloride (CAS NO.4229-44-1):
Hazard Codes: Xi
Xi: Irritant
Risk Statements: 36/37/38
36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements: 26-36-24/25
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
24/25: Avoid contact with skin and eyes
RIDADR: 1759
WGK Germany: 3

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