1,2,2,6,6-Pentamethylpiperidine
Also known as: Pempidine, PMP, Perolysen, Pyrilene, N-methyl-2,2,6,6-tetramethylpiperidine, M and B-4486, M+B 4486, 1,2,2,6,6-PENTAMETHYLPIPERIDINE
1,2,2,6,6-Pentamethylpiperidine (CAS 79-55-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H21N and a molecular weight of 155.28000 g/mol. Key properties include a melting point of 137-141ºC, a boiling point of 187-188 °C(lit.), a density of 0.858 g/mL at 25 °C(lit.) and a flash point of 50.0 °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 Nov 2, 2026.
- CAS No.
- 79-55-0
- Jingsj CID
- J-1970883-6
- Molecular Formula
- C10H21N
- Molecular Weight
- 155.28000 g/mol
- Category
- Pharma Intermediates
- Last updated
- 11/2/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 137-141ºC |
|---|---|
| Boiling Point | 187-188 °C(lit.) |
| Density | 0.858 g/mL at 25 °C(lit.) |
| Flash Point | 50.0 °C |
| Exact Mass | 155.16700 |
| PSA | 3.24000 |
| LogP | 2.59720 |
| Refractive Index | n20/D 1.460(lit.) |
| Storage Conditions | Flammables area |
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
Activity & Biological Data
| Additional Information | [1]. Martin TJ, et al. Pharmacological evaluation of the antagonism of nicotine's central effects by mecamylamine and pempidine. J Pharmacol Exp Ther. 1990 Jul;254(1):45-51. [2]. L. BRETHERICK, Congeners of Pempidine with High Ganglion-blocking Activity. Nature, 1959, 184: 1707-1709 ) |
|---|
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 1,2,2,6,6-Pentamethylpiperidine?
The CAS number of 1,2,2,6,6-Pentamethylpiperidine is 79-55-0.
What are the molecular formula and molecular weight of 1,2,2,6,6-Pentamethylpiperidine?
1,2,2,6,6-Pentamethylpiperidine has molecular formula C10H21N and molecular weight 155.28000 g/mol.
Is 1,2,2,6,6-Pentamethylpiperidine hazardous?
1,2,2,6,6-Pentamethylpiperidine 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 1,2,2,6,6-Pentamethylpiperidine?
For 1,2,2,6,6-Pentamethylpiperidine, Upstream Products: 2,2,6,6-Tetramethylpiperidine, Formaldehyde, iodomethane; Downstream Products: 2-Phenyl-2-propanol, 2,2,6,6-Tetramethylpiperidine, 3,5-Di-tert-butylbenzyl alcohol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1,2,2,6,6-Pentamethylpiperidine (CAS 79-55-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1970883-6 (accessed 2026-11-07).
Data for reference only; verify product details with suppliers before purchase.