2-Propylpiperidine Property

Melting point:

-2℃

Boiling point:

56-60 °C(Press: 13 Torr)

Density 

0.85 g/mL at 25 °C(lit.)

storage temp. 

Sealed in dry,2-8°C

form 

liquid

pka

pK1:11.24(+1) (25°C,μ=0.5)

color 

, clear colorless to yellow-green

CAS DataBase Reference

3238-60-6(CAS DataBase Reference)

Safety

Hazard Codes 

T

Risk Statements 

23/24/25-40

Safety Statements 

22-36/37/39-45

RIDADR 

UN 2810 6.1/PG 2

WGK Germany 

3

HazardClass 

IRRITANT

HS Code 

2933399990

Toxicity

Piperidine alkaloid obtained from poison hemlock, Conium maculatum. Alkaline, steam volatile liquid (b.p. 167_x0003_C), mousy odor. Darkens and polymerizes in air. It can be reduced at high temperature with HI to n-octane and oxidized to pyridine-1-carboxylic acid. The hydrochloride is used as an antispasmodic.

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H226Flammable liquid and vapour

H301Toxic if swalloed

H311Toxic in contact with skin

H331Toxic if inhaled

H351Suspected of causing cancer

Precautionary statements

P201Obtain special instructions before use.

P202Do not handle until all safety precautions have been read and understood.

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P242Use only non-sparking tools.

P243Take precautionary measures against static discharge.

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P281Use personal protective equipment as required.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P308+P313IF exposed or concerned: Get medical advice/attention.

P311Call a POISON CENTER or doctor/physician.

P312Call a POISON CENTER or doctor/physician if you feel unwell.

P321Specific treatment (see … on this label).

P322Specific measures (see …on this label).

P330Rinse mouth.

P361Remove/Take off immediately all contaminated clothing.

P363Wash contaminated clothing before reuse.

P370+P378In case of fire: Use … for extinction.

P403+P233Store in a well-ventilated place. Keep container tightly closed.

P403+P235Store in a well-ventilated place. Keep cool.

P405Store locked up.

P501Dispose of contents/container to..…

2-Propylpiperidine Chemical Properties,Usage,Production

Chemical Properties

Colorless liquid; darkens on exposure tolight and air; polymerizes; boils at 166°C(330.8°F); melts at -2°C (28.4°F); alkaline, pKa 3.1; density 0.845 at 20°C (68°F);slightly soluble in water and chloroform,readily soluble in most organic solvents.

Uses

Coniine is present in all parts of the plantpoison hemlock (Conium maculatum). It isthe first alkaloid to be synthesized and structure determined. Because of its high toxicity,its clinical application is very limited.

Synthesis Reference(s)

Tetrahedron Letters, 26, p. 4633, 1985 DOI: 10.1016/S0040-4039(00)98771-9

Health Hazard

Coniine is a highly toxic alkaloid. Thetoxic symptoms from ingestion are weakness,drowsiness, nausea, vomiting, muscle contraction, and labored breathing. A high dosecan cause convulsions, cyanosis, asphyxia,and death. Chronic ingestion of coniine produced adverse reproductive effects and spe cific developmental abnormalities in cattles.LD50 value, oral (mice): 100 mg/kg.