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593-56-6

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Identification

Name
Methoxyammonium chloride
CAS
593-56-6
Synonyms
HYDROXYLAMINE METHYL ETHER HYDROCHLORIDE
MAH
METHOXYAMINE HCL
METHOXYAMINE HYDROCHLORIDE
methoxyammonium chloride
METHOXYLAMINE HYDROCHLORIDE
METHYLHYDROXYLAMINE HYDROCHLORIDE
METHYOXYAMINE HCL
MOX REAGENT
MOX(TM) REAGENT
O-METHYLHYDROXYAMINE HYDROCHLORIDE
O-METHYLHYDROXYLAMINE HCL
O-METHYLHYDROXYLAMINE HYDROCHLORIDE
O-METHYLHYDROXYLAMMONIUM CHLORIDE
Hydroxylamine,O-methyl-,hydrochloride
methyloxyammoniumchloride
o-methyl-hydroxylaminhydrochloride
Methoxylamine hydrochloride or O-methylhydrolamine
O-METHOXYAMINE HCL
METHOXYLAMINE HYDROCHLORIDE, 25-30 WT. % SOLUTION IN WATER
EINECS(EC#)
209-798-7
Molecular Formula
CH6ClNO
MDL Number
MFCD00012951
Molecular Weight
83.52
MOL File
593-56-6.mol

Chemical Properties

Appearance
White to very faintly yellow crystalline powder
mp 
151-154 °C(lit.)

bp 
105-110°C
density 
1.1 g/mL at 25 °C

refractive index 
n20/D 1.4021

Water Solubility 
SOLUBLE
Sensitive 
Hygroscopic
Detection Methods
T,NMR,HPLC(Differential)
Merck 
14,5989
BRN 
3589723
CAS DataBase Reference
593-56-6(CAS DataBase Reference)
EPA Substance Registry System
593-56-6(EPA Substance)

Safety Data

Hazard Codes 
C,Xi,N
Risk Statements 
R34:Causes burns.
R36/37/38:Irritating to eyes, respiratory system and skin .
R50:Very Toxic to aquatic organisms.
R43:May cause sensitization by skin contact.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
Safety Statements 
S3:Keep in a cool place .
S24:Avoid contact with skin .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet .
S24/25:Avoid contact with skin and eyes .
S27:Take off immediately all contaminated clothing .
RIDADR 
UN 3265 8/PG 2

WGK Germany 
3

RTECS 
NC3980000


3-10
Hazard Note 
Corrosive/Hygroscopic
HazardClass 
8
PackingGroup 
III
HS Code 
29280000

Raw materials And Preparation Products

Hazard Information

General Description
Off-white crystals.
Reactivity Profile
In aqueous solution, O-METHYLHYDROXYLAMINE HYDROCHLORIDE(593-56-6) behaves as an acid. Materials in this group are generally soluble in water. The resulting solutions contain moderate concentrations of hydrogen ions and have pH's of less than 7.0. They react as acids to neutralize bases. These neutralizations generate heat, but less or far less than is generated by neutralization of inorganic acids, inorganic oxoacids, and carboxylic acid. They usually do not react as either oxidizing agents or reducing agents but such behavior is not impossible. Many of these compounds catalyze organic reactions.
Air & Water Reactions
Water soluble.
Fire Hazard
Flash point data for this chemical are not available. O-METHYLHYDROXYLAMINE HYDROCHLORIDE is probably combustible.

Material Safety Data Sheet(MSDS)

Questions And Answer

Methoxyamine hydrochloride
Methoxyamine hydrochloride (also known as O-methylhydroxylamine hydrochloride; Methoxyamine; Methoxyamine hydrochloride (OMHA), is an important medicine, pesticide intermediates. Its major applications are as follows:
  • it can be used for color photography and film printing.
  • it is used as a reducing agent in organic synthesis industry for preparation of oximes.
  • the field of medicine: it can be used for the synthesis of second-generation cephalosporins antibiotics cefuroxime (ester), neopropene, norethindine and hydroxyurea.
  • the field of pesticides: the synthesis of new efficient, low-toxicity bactericidal metominostrobin.
  • It is mainly produced by sodium nitrite method in our country.
The similar compound of methoxyamine hydrochloride, the ethoxylamine hydrochloride is mainly used for the production of herbicides, oxycarbazone, diltiazem and other herbicides.
Application
  • Used as a methoxyamine reagent, also used in the production of the side chain of Cefuroxime and other new drugs
  • Used for pesticide synthesis.
  • Use for pharmaceuticals production
  • Used for the preparation of O-methyloxime together with aldehydes or ketones.

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