Methyl Morpholine (NMM) – High Purity, Bulk, Fast Delivery

A field insider’s take on Methyl Morpholine: specs, sourcing, and what buyers really ask

If you spend enough time around amine solvents, you develop a sixth sense for when a supplier actually understands the nuances. With Methyl Morpholine (often shortened to NMM), that nuance matters—especially as downstream users in pharma, coatings, and gas treatment tighten specs and compliance. The market, to be honest, has been steady but picky: buyers want cleaner cuts (low water, low color), tighter odor profiles, and reliable lead times.

What it is, and the common mix-up

Here’s a quick clarification buyers keep running into. Many catalogs list both Methyl Morpholine (N-methylmorpholine, typically C5H11NO) and the closely related N-Formylmorpholine (C5H9NO2). They ride the same solvent family tree, but they’re not identical. Some distributors present them side by side—occasionally in the same page family—so double-check which one your process requires before issuing a PO.

Product Specifications (buyer-facing)

Parameter	Methyl Morpholine (NMM)	N-Formylmorpholine (related)
Formula / MW	≈ C5H11NO / ≈ 101.15 g/mol	C5H9NO2 / 115.13 g/mol
CAS	109-02-4	4394-85-8
Appearance	Clear, colorless liquid	Clear, colorless liquid
Assay	≥ 99.0% (GC)	≥ 99.0% (GC)
Water (KF)	≤ 0.20%	≤ 0.20%
Color	APHA ≤ 15	APHA ≤ 15
Shelf life	12–24 months sealed; real-world use may vary	12–24 months sealed

Process flow and quality control

Methyl Morpholine is typically produced by methylation of morpholine under controlled basic conditions, followed by fractional distillation and polishing. A representative QC program includes:

Incoming raw morpholine verification (GC purity, amine value)
In-process monitoring: reactor temp/pressure, GC area%
Finishing: water by Karl Fischer (ASTM E203), color by ASTM D1209, final GC
Compliance pack: COA, SDS, REACH status, lot traceability

Origin for the reviewed supplier: Jinling Mansions No.106-1 East Yuhua Rd., Shijiazhuang, Hebei, China. Packaging is usually 180–200 kg steel drums or IBCs; nitrogen blanket is recommended in humid climates.

Where it’s used (and why)

Pharma and agro intermediates: base catalyst and solvent—many customers say its cleanliness reduces downstream color bodies.
Coatings/adhesives: accelerant in epoxy and PU systems; low water helps.
Gas treatment and amine blends: stability and manageable volatility.
Electronics chemicals: only with enhanced filtration and tight metals specs.

Vendor comparison snapshot

Vendor	Typical Purity	Lead Time	Customization	Certs
Sincere Chemicals	≥ 99.0%	7–15 days	Water, metals, color	ISO 9001, REACH-ready
Global A-mine Major	≥ 99.5%	30–45 days	Limited SKUs	ISO 9001/14001
Regional Trader	98.5–99.0%	Stock-dependent	Packaging only	Varies

Case notes

A coatings plant in Southeast Asia swapped to Methyl Morpholine with KF ≤0.1%. Their epoxy pot-life stabilized by ~6–8%, and yellowing dropped a notch on the Gardner scale after 90 days at 40°C. Not earth-shattering, but in real production, that’s money.

Safety, standards, and tips

Follow SDS; use local exhaust, splash goggles, and nitrile gloves.
Testing references: ASTM E203 (water), ASTM D1209 (color), GC per internal SOP.
Storage: dry, sealed, away from acids/oxidizers; nitrogen blanket preferred.
Ask for batch metals (Na, K, Fe) if electronics or catalyst-sensitive lines are involved.

What to request in your RFQ

COA, latest SDS, ISO 9001 certificate, REACH/TSCA status, packaging photos, and a 500 g sample for method fit. It seems basic, yet it speeds up qualification by weeks.