2,2,6,6-Tetramethylpiperidine
Also known as: HTMP, Norpempidine, 2,2,6,6-Tetramethylpiperidine (HTMP), Piperidine, 2,2,6,6-tetramethyl-
2,2,6,6-Tetramethylpiperidine (CAS 768-66-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H19N and a molecular weight of 141.254 g/mol. Key properties include a melting point of -59°C, a boiling point of 157.6±8.0 °C at 760 mmHg, a density of 0.8±0.1 g/cm3 and a flash point of 24.4±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H301 — Toxic if swallowed and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 768-66-1
- Jingsj CID
- J-49059-5
- Molecular Formula
- C9H19N
- Molecular Weight
- 141.254 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -59°C |
|---|---|
| Boiling Point | 157.6±8.0 °C at 760 mmHg |
| Density | 0.8±0.1 g/cm3 |
| Flash Point | 24.4±0.0 °C |
| Exact Mass | 141.151749 |
| PSA | 12.03000 |
| LogP | 3.00 |
| Vapor Pressure | 2.7±0.3 mmHg at 25°C |
| Refractive Index | 1.417 |
| Additional Property | MISCIBLE |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H301 — Toxic if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2933399090 |
|---|---|
| Summary | 2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 2,2,6,6-Tetramethylpiperidine?
The CAS number of 2,2,6,6-Tetramethylpiperidine is 768-66-1.
What are the molecular formula and molecular weight of 2,2,6,6-Tetramethylpiperidine?
2,2,6,6-Tetramethylpiperidine has molecular formula C9H19N and molecular weight 141.254 g/mol.
Is 2,2,6,6-Tetramethylpiperidine hazardous?
2,2,6,6-Tetramethylpiperidine has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H301 — Toxic if swallowed; H315 — Causes skin irritation.
What are the upstream and downstream products of 2,2,6,6-Tetramethylpiperidine?
For 2,2,6,6-Tetramethylpiperidine, Upstream Products: 2,2,6,6-Tetramethyl-4-piperidinone, 2,2,6,6-Tetramethylpiperidinooxy, Benzylamine; Downstream Products: 6-Bromo-2,3-difluorobenzaldehyde, 3,5-dichloropyrazine-2-carboxylic acid, Benzene,1-methyl-4-[(4-methylphenyl)methyl]-.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,2,6,6-Tetramethylpiperidine (CAS 768-66-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49059-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.