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Chemical substance

O-Methylhydroxylamine

Also known as Methoxyamine, Hydroxylamine, O-methyl-, Methoxylamine

CAS 67-62-9Formula CH5NOMolar mass 47.06 g/molEC 200-660-1
GHS signal word: Danger. Pictograms: Corrosive, Harmful or irritant 6 suppliers listed
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O-Methylhydroxylamine chemical structure, CH5NO, CAS 67-62-9
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
67-62-9
Formula
CH5NO
Appearance
Mobile liquid
Boiling point
49 to 50
Solubility
MISCIBLE WITH WATER, ALCOHOL, ETHER
HS code
294200
Illustrative photo, closed amber glass reagent bottles on a laboratory bench
Typical packagingIllustrative packaging image, not the actual product

What is O-Methylhydroxylamine?

Plain description, key identifiers and synonyms

Methoxyamine is an organooxygen compound.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
O-methylhydroxylamine
CAS number
67-62-9 CAS number cross-checked
EC number
200-660-1
Molecular formula
CH5NO
UNII
9TZH4WY30J
MDL number
MFCD00044753
InChIKey
GMPKIPWJBDOURN-UHFFFAOYSA-N
InChI
InChI=1S/CH5NO/c1-3-2/h2H2,1H3
SMILES (canonical and isomeric)
CON

Synonyms

  • Methoxyamine
  • Hydroxylamine, O-methyl-
  • Methoxylamine
  • Hydroxylamine methyl ether
  • alpha-Methylhydroxylamine
  • TRC102 Base
  • methane, O-aminohydroxy-
  • methoxy amine
  • N-methoxyamine
  • MeONH2
  • NH2OMe
  • O-methyl hydroxylamine
  • O-methyl-hydroxylamine
  • O-methylhydroxyl amine
  • O-methyl hydroxyl amine
  • O-Methylhydroxylamine, HCl
  • 4-01-00-01252 (Beilstein Handbook Reference)
  • DivK1c_000600
  • DivK1c_006840
  • Gmpkipwjbdourn-uhfffaoysa-

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

Appearance
Mobile liquidexp.
Odour
FISHY, AMINE ODORexp.
Boiling point
49 to 50exp.
Solubility
MISCIBLE WITH WATER, ALCOHOL, ETHERexp.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
47.06 g/molcalc.
Exact mass
47.0371 Dacalc.
LogP (octanol/water)
-0.49calc.
Topological polar surface area
35.25 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
0calc.
Heavy atoms
3calc.
Rings
0calc.
Aromatic rings
0calc.
Fraction sp3 carbons
1calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS05: Corrosive
Corrosive
GHS07: Harmful or irritant
Harmful or irritant

Hazard statements

  • H302 + H312 + H332Harmful if swallowed. Harmful in contact with skin. Harmful if inhaled.
  • H302Harmful if swallowed.
  • H312Harmful in contact with skin.
  • H314Causes severe skin burns and eye damage.
  • H318Causes serious eye damage.
  • H332Harmful if inhaled.
Precautionary statements (21)
  • P260Do not breathe dust, fume, gas, mist, vapours or spray.
  • P261Avoid breathing dust, fume, gas, mist, vapours or spray.
  • P264Wash skin thoroughly after handling.
  • P264 + P265Wash skin thoroughly after handling. Do not touch eyes.
  • P270Do not eat, drink or smoke when using this product.
  • P271Use only outdoors or in a well-ventilated area.
  • P280Wear protective gloves, protective clothing, eye protection and face protection.
  • P301 + P317If swallowed: Get medical help.
  • P301 + P330 + P331If swallowed: Rinse mouth. Do not induce vomiting.
  • P302 + P352If on skin: Wash with plenty of water.
  • P302 + P361 + P354If on skin: Take off immediately all contaminated clothing. Immediately rinse with water for several minutes.
  • P304 + P340If inhaled: Remove person to fresh air and keep comfortable for breathing.
  • P305 + P354 + P338If in eyes: Immediately rinse with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
  • P316Get emergency medical help immediately.
  • P317Get medical help.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P362 + P364Take off contaminated clothing. And wash it before reuse.
  • P363Wash contaminated clothing before reuse.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Full safety data and first aid

O-Methylhydroxylamine suppliers

Sponsored listings first, then the documented ranking: membership, verification, replies, completeness, freshness and ratings

All 6 suppliers
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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

6 suppliers in 4 countries

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O-Methylhydroxylamine price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Analytical reagent.

Analytical reagent for aldehydes & ketones.

Roles

  • antineoplastic agent
  • pharmaceutical

Pharmacology

Methoxyamine is an orally bioavailable small molecule inhibitor with potential adjuvant activity. Methoxyamine covalently binds to apurinic/apyrimidinic (AP) DNA damage sites and inhibits base excision repair (BER), which may result in an increase in DNA strand breaks and apoptosis. This agent may potentiate the anti-tumor activity of alkylating agents.

How it is made

Reaction of hydroxylamine disulfonic acid with methyl sulfate

By heating hydroxylamine disulfonic acid with methyl sulfate: goldfarb, j am chem soc 67: 1852 (1945). May also be prepd from hydroxyurethan.

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code O-Methylhydroxylamine is traded under.

HS 2942.00Indicative HS code

Organic compounds not elsewhere classified in chapter 29

World exports in 2024
$589M
−43.5% vs 2023, imports $614M
2019 to 2024
Top exporters
  1. India * partner reported20.7%
  2. United States18.6%
  3. Italy10.4%
Top importers
  1. United States15.1%
  2. Italy6.7%
  3. Japan5.3%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for O-Methylhydroxylamine is indicative (it is known at chapter level only). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about O-Methylhydroxylamine, based on the data on this page

What is O-Methylhydroxylamine?

Methoxyamine is an organooxygen compound.

What is the CAS number of O-Methylhydroxylamine?

The CAS registry number of O-Methylhydroxylamine is 67-62-9.

What is the molecular formula and weight of O-Methylhydroxylamine?

The molecular formula of O-Methylhydroxylamine is CH5NO and its molar mass is 47.06 g/mol.

What is O-Methylhydroxylamine used for?

Analytical reagent. Analytical reagent for aldehydes & ketones.

Is O-Methylhydroxylamine hazardous?

O-Methylhydroxylamine carries the GHS signal word "Danger". Main hazards: harmful if swallowed. harmful in contact with skin. harmful if inhaled, harmful if swallowed, harmful in contact with skin. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of O-Methylhydroxylamine?

O-Methylhydroxylamine is usually classified under HS code 294200 (XIII. OTHER ORGANIC COMPOUNDS, other organic compounds). This is indicative, confirm it with your customs broker before shipping.

Where can I buy O-Methylhydroxylamine?

CompoundList lists 6 suppliers of O-Methylhydroxylamine in China, United States, France and Hong Kong. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of O-Methylhydroxylamine?

Suppliers quote O-Methylhydroxylamine on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle O-Methylhydroxylamine

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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