3-Methylpiperidine Supplier | High Purity, Global Shipping
3-Methylpiperidine: what buyers are really asking for in 2025
If you source fine amines for pharma, agro, or advanced materials, you’ve probably bumped into 3-Methylpiperidine more than once. To be honest, the market has been a bit tight lately—energy costs, compliance upgrades, and, surprisingly, packaging logistics are shaping availability. Here’s the inside track, plus the hard specs buyers keep emailing me about.
Quick product snapshot
Name: 3-Methylpiperidine (aka 3-Pipecoline; Hexahydro-3-picoline) | CAS 626-56-2 | Formula C6H13N | MW 99.17 | UN No. 1993 (Flammable liquid, n.o.s.). Origin: Jinling Mansions No.106-1 East Yuhua Rd., Shijiazhuang, Hebei, China.
| Specification | Typical value (≈, real-world use may vary) | Test method |
|---|---|---|
| Assay (GC) | ≥ 99.0% (typical 99.5%) | GC, internal standard (in-house SOP) |
| Water | ≤ 0.20% (typical 0.08%) | Karl Fischer, ASTM E203 |
| Color | ≤ 20 APHA | ASTM D1209 |
| Density (20°C) | ≈ 0.83–0.85 g/cm³ | ASTM D4052 |
| Boiling range | ≈ 118–123 °C | Distillation, ASTM D1078 |
Where it’s used (and why it’s popular)
- Pharmaceuticals: intermediate/base in heterocycle synthesis; salt formation studies in CDMOs.
- Agrochemicals: building block for selective herbicide and insecticide intermediates.
- Coatings & adhesives: catalyst/accelerator in epoxy and polyurethane systems; nice balance of basicity and volatility.
- Oilfield & water treatment: precursor for corrosion inhibitor chemistries.
Many customers say they pick 3-Methylpiperidine for its clean GC profile and “predictable base strength”—not my words, but I hear it a lot. And actually, fewer off-notes in cured coatings is a recurring benefit.
High-level process flow (supplier-side)
- Materials: hydrogenation-grade feedstock (e.g., 3-picoline), hydrogen, catalyst.
- Methods: selective hydrogenation, neutralization, phase separation, fine distillation.
- QC: GC assay, KF water, APHA color, residue-on-evaporation; COA per batch.
- Compliance: ISO 9001 QMS; REACH support file on request; GHS labeling.
- Service life: around 24 months sealed, nitrogen-blanketed drums, cool and dry.
- Industries served: pharma intermediates, agro, coatings, electronics auxiliaries.
Vendor comparison (what buyers compare, honestly)
| Vendor | Assay | Lead time | Docs & compliance | Packaging |
|---|---|---|---|---|
| Sincere Chemicals | ≥99.0% (typ. 99.5%) | 7–15 days ex-works | ISO 9001, REACH support, SDS/COA | 25 kg drum, 180 kg drum, IBC |
| General Trader A | ≥98.0% | 3–6 weeks | Basic SDS; limited dossiers | Mixed lots; re-branded |
| Lab-Scale Supplier B | ≥99.5% (small packs) | Stock-dependent | Analytical COA only | 0.5–5 kg bottles |
Customization, testing, and real feedback
- Customization: low-water grade (≤0.05%), tighter color spec, inhibitor-free, nitrogen blanket, custom labels.
- Test data (example lot): GC 99.52%; water 0.08%; APHA 15; residual toluene < 200 ppm.
- Certifications: ISO 9001; environmental/occupational systems available on request; SDS aligned to GHS.
- Customer note: “Cure time in our epoxy primer dropped ~8%,” said a mid-size coatings maker—small but valuable.
Mini case studies
Agro plant (EU): switched to tighter moisture spec of 3-Methylpiperidine; crystallization step stabilized, batch rework down ≈12% over a quarter.
CDMO (US): requested low-residual solvents; vendor implemented additional polish distillation. Deviations went from “occasional” to “rare”—their words.
Safety note: flammable; handle with proper ventilation, bonding/grounding, and compatible seals. Follow SDS and transport rules under UN 1993.
Authoritative citations
- PubChem Compound Summary: 3-Methylpiperidine, CAS 626-56-2.
- ECHA (European Chemicals Agency) brief profile: 3-Methylpiperidine (substance info, classification & labeling).
- ASTM E203: Standard Test Method for Water by Karl Fischer Titration.
- ASTM D1209: Standard Test Method for Color of Clear Liquids (Platinum-Cobalt Scale).
Post time: Oct . 28, 2025 18:15
