-
Name
1,2,2,6,6-Pentamethylpiperidine
- EINECS 201-211-2
- CAS No. 79-55-0
- Article Data33
- CAS DataBase
- Density 0.799 g/cm3
- Solubility
- Melting Point 137-141ºC
- Formula C10H21 N
- Boiling Point 147 °C at 760 mmHg
- Molecular Weight 155.283
- Flash Point 50 °C
- Transport Information UN1992
- Appearance colorless - light yellow Clear liquid
- Safety Poison by ingestion and intravenous routes. When heated to decomposition it emits toxic fumes of NOx.
- Risk Codes 10 22 36/37/38
-
Molecular Structure
-
Hazard Symbols
Xn
- Synonyms Piperidine,1,2,2,6,6-pentamethyl-;2,2,6,6,N-Pentamethylpiperidine;B 4486;N,2,2,6,6-Pentamethylpiperidine;N-Methyl-2,2,6,6-tetramethylpiperidine;Pempidine;Pyrilene;
- PSA 3.24000
- LogP 2.59720
1,2,2,6,6-Pentamethylpiperidine Chemical Properties
IUPAC Name: 1,2,2,6,6-pentamethylpiperidine
Synonyms: Pempidine ; Piperidine, 1,2,2,6,6-pentamethyl- ; 1,2,2,6,6-Pentamethylpiperidine
Product Categories: API intermediates
CAS NO:79-55-0
Molecular Formula of 1,2,2,6,6-Pentamethylpiperidine (CAS NO.79-55-0) :C10H21N
Molecular Weight of 1,2,2,6,6-Pentamethylpiperidine (CAS NO.79-55-0) :155.28
Molecular Structure of 1,2,2,6,6-Pentamethylpiperidine (CAS NO.79-55-0) :
EINECS: 201-211-2
Index of Refraction: 1.427
Surface Tension: 21.7 dyne/cm
Density: 0.799 g/cm3
Flash Point: 50 °C
Enthalpy of Vaporization: 38.4 kJ/mol
Boiling Point: 147 °C at 760 mmHg
Vapour Pressure: 4.52 mmHg at 25°C
Storage temp: Flammables area
Appearance:clear colorless to light yellow liquid
1,2,2,6,6-Pentamethylpiperidine Toxicity Data With Reference
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intravenous | 40mg/kg (40mg/kg) | Nature. Vol. 184, Pg. 1707, 1959. | |
| mouse | LD50 | oral | 275mg/kg (275mg/kg) | Nature. Vol. 184, Pg. 1707, 1959. |
1,2,2,6,6-Pentamethylpiperidine Consensus Reports
Reported in EPA TSCA Inventory.
1,2,2,6,6-Pentamethylpiperidine Safety Profile
Poison by ingestion and intravenous routes. When heated to decomposition it emits toxic fumes of NOx.
Hazard Codes 
Xn
Risk Statements 10-22-36/37/38
R10:Flammable.
R22:Harmful if swallowed.
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements 26-36/37
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37:Wear suitable protective clothing and gloves.
RIDADR UN 1992 3/PG 3
WGK Germany 3
RTECS TN2190000
F 10-34
HazardClass 3
PackingGroup III
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