Methyl Morpholine (NMM) Supplier | High Purity, Bulk Stock
If you’re sourcing Methyl Morpholine in 2025, here’s the quick reality: quality specs matter, logistics matter, and—surprisingly—so does the chemistry route your supplier uses.
Inside the N‑Methylmorpholine market: specs, trends, and what buyers actually check
I’ve spent enough time around polyurethane plants and pharma sourcing teams to know that Methyl Morpholine (often shortened to NMM) can be either a reliable workhorse or a headache. It’s a clear, colorless liquid base used as a catalyst in PU foams, an acid scavenger, and a versatile intermediate. Note: don’t confuse it with N‑Formylmorpholine (NFM)—a different solvent entirely. Some vendor pages list both; always verify CAS data before issuing a PO.
Technical snapshot (real-world values buyers expect)
| Parameter | Typical value (≈) | Method / Standard | Notes |
|---|---|---|---|
| Chemical name | N‑Methylmorpholine (NMM) | — | CAS 109‑02‑4; MW ≈ 101.15 g/mol |
| Purity | ≥ 99.0% | GC (USP ) | Spec depends on application |
| Water | ≤ 0.20% | Karl Fischer (ASTM E203) | Low moisture critical for PU |
| Density (20°C) | ≈ 0.91–0.93 g/mL | ASTM D4052 | Batch-to-batch shifts are minor |
| Boiling point | ≈ 115–116°C | Literature | Atmospheric |
| Flash point | ≈ 29–32°C | ASTM D93 | Flammable—handle accordingly |
Side note for spec nerds: some catalog blurbs cite N‑Formylmorpholine (C5H9NO2, CAS 4394‑85‑8) due to historical cross-listing. That’s not Methyl Morpholine; different boiling range and use case.
Process flow (how the better suppliers make it)
- Materials: morpholine, methylating agent (increasingly dimethyl carbonate for a “greener” route).
- Methods: continuous methylation of morpholine, followed by fractional distillation; optional polishing over basic alumina.
- QC & testing: GC purity, water by KF, color APHA (ASTM D1209), density (ASTM D4052), flash (ASTM D93).
- Service life: around 24 months sealed; store cool, dry, away from acids and oxidizers.
- Industries: polyurethane foams, pharma intermediates, agrochemicals, coatings, electronics.
Where it’s used (and why buyers prefer it)
PU formulators like Methyl Morpholine for clean catalytic behavior and predictable blow/gel balance. Pharma teams use it as a base where tertiary amines beat inorganic alternatives on workup. Many customers say it just “behaves” better in scale-up compared to mixed amine blends.
Vendor landscape (what I’m seeing)
| Vendor | Purity | Lead time | Certs | Packaging | Customization |
|---|---|---|---|---|---|
| Sincere Chemicals (Origin: Jinling Mansions No.106-1 East Yuhua Rd., Shijiazhuang, Hebei, China) | ≥99.0% | 7–14 days | ISO 9001, REACH-ready | 200 kg drum, 1000 L IBC, ISO tank | Low-water grades, GC target specs |
| Global trader A | 98.5–99.0% | 3–5 weeks | ISO 9001 | Drums/IBCs | Limited |
| Regional producer B | ≥99.5% | 2–3 weeks | ISO 9001/14001 | ISO tank focus | Tailored water ≤0.05% |
Customization and QA
- Custom moisture specs (≤0.10% or ≤0.05% by KF) for sensitive PU lines.
- Stabilizer-free vs. inhibitor-added options (application-dependent).
- COA + GC chromatograms; third‑party ISO 17025 reports upon request.
Testing references that matter in audits: ASTM D93 (flash), D4052 (density), E203 (KF), D1209 (color). Honestly, showing raw GC traces wins trust during supplier qualification.
Mini case notes
PU slabstock foam maker, ASEAN: Switched to Methyl Morpholine with ≤0.10% water; reported 1.2% reduction in density drift and fewer scrap blocks after a week. Their words, not mine.
Pharma intermediate shop, EU: Spec’d ≥99.5% NMM; cleaner workup, 0.8% higher assay on the API intermediate. Lead time beat the incumbent by 10 days.
Safety and storage: treat Methyl Morpholine as flammable and corrosive to eyes/skin; use closed systems, nitrogen blanketing if possible, and keep drums tight at 15–30°C. Shelf life around 24 months when sealed.
Citations
- PubChem Compound Summary: N‑Methylmorpholine (CAS 109‑02‑4), NIH.
- ECHA Substance Information: N‑Methylmorpholine, European Chemicals Agency.
- ASTM D93, Pensky‑Martens Closed Cup Flash Point of Petroleum Products.
- ASTM D4052, Density and Relative Density of Liquids by Digital Density Meter; ASTM E203, Water by Karl Fischer Titration.
Post time: Oct . 27, 2025 19:05
