N-Methyldiethanolamine (CAS 105-59-9), chemically defined as 2,2'-(Methylimino)diethanol or Methyl diethanolamine, is a tertiary alkanolamine utilized as a high-efficiency selective solvent in gas treating applications. Widely recognized by the industry acronym MDEA, this liquid compound functions through the selective absorption of hydrogen sulfide (H2S) and carbon dioxide (CO2), serving as the critical scrubbing agent in natural gas sweetening, refinery tail gas treating, and ammonia synthesis gas purification. We provide this industrial material with competitive factory pricing to support continuous manufacturing operations, alongside options for customized specifications. Essential technical documentation, including MSDS, TDS, COA, is readily available for all bulk supply orders.
N-Methyldiethanolamine CAS 105-59-9
- CAS: 105-59-9
- Synonyms: MDEA, Methyl diethanolamine, 2,2'-(Methylimino)diethanol, Bis(2-hydroxyethyl)methylamine, Methyldiethanolamine
- Einecs: 203-312-7
- Molecular Formula: C5H13NO2
- Grade: Industrial grade 99%
- Package: 200kg iron drum or 50kg plastic drum packing
Product Description
N-methyl diethanolamine is an organic compound with a chemical formula of C5H13NO2, a colorless or dark yellow oily liquid, which can be miscible with water and alcohol and is slightly soluble in ether. It is mainly used as an emulsifier and acid gas absorber, acid-base control agent, polyurethane foam catalyst, and also as an intermediate for anti-tumor drugs such as nitrogen mustard hydrochloride.
Name: Methyldiethanolamine MDEA
CAS Accession Number: 105-59-9
EINECS Accession Number: 203-312-7
Color: Colorless or dark yellow oily liquid
Chemical formula: C5H13NO2
Molecular weight: 119.16
Storage: Room temperature dark storage
Packaging: 200KG/drum
Product use: Methyl diethanolamine is widely used in oilfield gas and gas desulfurization purification emulsifier and acid gas absorber, acid-alkali control agent, polyurethane foam catalyst. It can remove carbon dioxide from synthetic ammonia with the participation of activators, so it has been gradually promoted in the absorption of carbon dioxide in flue gas in recent years. In addition, MDEA can also be used as an insecticide, emulsifier, semi-finished product of fabric additives, catalyst for carbamate coatings, fiber additives, etc., and at the same time, it is also a drying agent for paints.
FAQ - Technical & Supply Chain
-
Q:
Is the industry abbreviation MDEA exclusively associated with CAS 105-59-9?
A: Yes, MDEA is the standard technical designation for N-Methyldiethanolamine (CAS 105-59-9), distinguishing it from other ethanolamines like MEA or DEA used in gas processing. -
Q:
Is this amine suitable for selective hydrogen sulfide removal in gas treating units?
A: Yes, this tertiary amine is specifically characterized by its kinetic selectivity, making it intended for the preferential removal of H2S from gas streams containing both H2S and CO2.
Documents and Product Support
For product review and sourcing evaluation, supporting documents can be coordinated according to the product type, inquiry stage, and order requirements.
- COA for batch-based quality reference
- TDS for key physical and chemical information
- SDS / MSDS for handling, storage, and safety reference
- Packing information for sample, trial, and bulk orders
- Technical communication based on application and specification requirements
Information to Confirm Before Quotation
Clear sourcing information helps reduce specification mismatch and allows a more accurate quotation before sample or bulk order discussion.
- Product name and CAS number
- Application or intended end use
- Required purity, grade, or specification
- Sample quantity, trial order, or bulk demand
- Preferred packing form or net weight
- Destination country or port
- Required documents or compliance expectations
Packaging, Storage, and Handling Notes
Packaging form, storage conditions, shelf life, and shipment arrangements should be confirmed according to the product characteristics, package size, and destination requirements.
Before order confirmation, buyers are advised to review the corresponding product documents and confirm whether any special storage, labeling, or handling requirements apply.
Sample, Bulk Order and Repeat Supply Support
Support can be arranged for sample discussion, bulk supply planning, packaging confirmation, and routine sourcing communication based on the actual product and order requirements.
For repeat-use formulations or long-term procurement plans, buyers may discuss specification consistency, packaging preferences, delivery expectations, and document coordination in advance.
