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626-67-5

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Identification

Name
N-Methylpiperidine
CAS
626-67-5
Synonyms
1-METHYLPIPERIDINE
N-MEPIP
N-METHYLPIPERIDINE
NMPPR
1-methyl-piperidin
lk20
Piperidine,1-methyl-
1-Pipecoline
1-METHYLPIPERIDINE SOLUTION
1-METHYLPIPERIDINE SOLUTION, FOR PROT.SE Q. ANAL., 40 ML
1-METHYLPIPERIDINE 98+%
1-METHYLPIPERIDINE PROTEIN*SEQUENCING GR ADE
N-Methylpiperidine/1-Methylpiperidine/Picoline
1-Methylpiperidine,97%
N-Methylpiperidine,98%
1-METHYLPIPERDINE
N-METHYL PIPERIDINE 1-METHYL-PIPERIDINE
EINECS(EC#)
210-959-9
Molecular Formula
C6H13N
MDL Number
MFCD00006491
Molecular Weight
99.17
MOL File
626-67-5.mol

Chemical Properties

Appearance
CLEAR COLOURLESS LIQUID
Melting point 
-50 °C
mp 
-50 °C
Boiling point 
106-107 °C (lit.)
bp 
106-107 °C(lit.)

density 
0.817 g/mL at 20 °C(lit.)

refractive index 
n20/D 1.438

Fp 
38 °F

storage temp. 
−20°C

form 
Liquid
pka
10.08(at 25℃)
color 
Clear colorless
PH
12 (100g/l, H2O, 20℃)
explosive limit
1.1-9.9%(V)
Water Solubility 
miscible
BRN 
1073
CAS DataBase Reference
626-67-5(CAS DataBase Reference)
NIST Chemistry Reference
Piperidine, 1-methyl-(626-67-5)
EPA Substance Registry System
626-67-5(EPA Substance)

Safety Data

Hazard Codes 
C,F,T
Risk Statements 
R11:Highly Flammable.
R34:Causes burns.
R20/22:Harmful by inhalation and if swallowed .
R39/23/24/25:Toxic: danger of very serious irreversible effects through inhalation, in contact with skin and if swallowed .
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
R67:Vapors may cause drowsiness and dizziness.
R22:Harmful if swallowed.
R10:Flammable.
Safety Statements 
S7:Keep container tightly closed .
S16:Keep away from sources of ignition-No smoking .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S9:Keep container in a well-ventilated place .
S33:Take precautionary measures against static discharges .
RIDADR 
UN 3286 3/PG 2

WGK Germany 
3

RTECS 
TN1225000


3-10
TSCA 
Yes
HazardClass 
3
PackingGroup 
II
HS Code 
29333999
Safety Profile
Poison by intraperitoneal and subcutaneous routes. A very dangerous fire hazard when exposed to heat or flame. When heated to decomposition it emits toxic fumes of NOx.
Toxicity
LD50 intraperitoneal in mouse: 400mg/kg

Raw materials And Preparation Products

Preparation Products
Mepiquat chloride

Hazard Information

General Description
A colorless liquid with the odor of pepper. Density 0.816 g/cm3 and flash point 38°F. May irritate skin and eyes. Vapors heavier than air. Used as a solvent and to make other chemicals.
Reactivity Profile
1-METHYLPIPERIDINE(626-67-5) neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen may be generated in combination with strong reducing agents, such as hydrides.
Air & Water Reactions
Highly flammable. Soluble in water.
Health Hazard
May cause toxic effects if inhaled or ingested/swallowed. Contact with substance may cause severe burns to skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
Fire Hazard
Flammable/combustible material. May be ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Description
This simple piperidine derivative has been obtained from Girgensohnia diptera Bge. It is optically inactive and furnishes a crystalline picrate, m.p. 15 I-2°C and a picrolonate, m.p. 226°C.
Chemical Properties
CLEAR COLOURLESS LIQUID
Uses
Reactant for: ·sp3 C-H Bond activation with ruthenium(II) catalysts and C(3)-alkylation of cyclic amines ·One-pot synthesis of Z-cinnamic acids Reactant for synthesis of: ·Unsymmetrical ureas ·Antibacterial imidazolium, pyrrolidinium, and piperidinium salts ·C1-C16 segment of goniodomin A via palladium-catalyzed organostannane thioester coupling ·Multi-targeted inhibitors of insulin-like growth factor-1 receptor and members of ErbB-family receptor kinases
References
Jurashevskii, Stepanov,J. Gen. Chem. USSR, 9,2203 (1939)

Material Safety Data Sheet(MSDS)

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