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675-20-7

Basic Information
CAS No.: 675-20-7
Name: 2-Piperidone
Molecular Structure:
Molecular Structure of 675-20-7 (2-Piperidone)
Formula: C5H9NO
Molecular Weight: 99.15
Synonyms: 2-Piperidone(8CI);2-Oxopiperidine;5-Pentanolactam;Delta-valerolactam;Pentanoic acid, 5-amino-, lactam;Valerolactim;a-Piperidone;d-Valerolactam;Piperidin-2-one;
EINECS: 211-622-9
Density: 1.001 g/cm3
Melting Point: 38-40 °C(lit.)
Boiling Point: 256 °C at 760 mmHg
Flash Point: 133.1 °C
Solubility: 291 g/L (25 °C) in water
Appearance: white to yellowish low melting crystalline mass
Hazard Symbols: IrritantXi
Risk Codes: 36/37-36/37/38
Safety: 22-24/25-37/39-26-36
Transport Information:
PSA: 29.10000
LogP: 0.61530
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    ProductName:2-Piperidone Synonyms:5-pentanelactam;2-oxo-piperidine;6-VALEROLACTAM;Piperidon; i-valerolactam;2-Piperidinone;D-VALEROLACTAM;piperidin-2-one; Piperidone-2;valerolactim;VALEROLACTAM;piperidin-1-yl-2-one; CAS:675-20-7 Molecular

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Chemistry

Molecular Structure of 2-Piperidone (CAS NO.675-20-7):

IUPAC Name: piperidin-2-one
Molecular Formula: C5H9NO
Molecular Weight: 99.13
EINECS: 211-622-9
H bond acceptors: 2
H bond donors: 1
Freely Rotating Bonds: 0
Polar Surface Area: 20.31 Å2
Index of Refraction: 1.448
Molar Refractivity: 26.53 cm3
Molar Volume: 98.9 cm3
Surface Tension: 31.2 dyne/cm
Density: 1.001 g/cm3
Flash Point: 133.1 °C
Enthalpy of Vaporization: 49.35 kJ/mol
Boiling Point: 256 °C at 760 mmHg
Vapour Pressure: 0.0158 mmHg at 25°C
Melting point: 38-40 °C(lit.)
Water Solubility: 291 g/L (25 °C)
Sensitive: Hygroscopic
BRN: 106434
InChI
InChI=1/C5H9NO/c7-5-3-1-2-4-6-5/h1-4H2,(H,6,7)
Smiles
C1(CCCCN1)=O
Product Categories: Pharmaceutical Intermediates; Piperidine

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
frog LDLo subcutaneous 3gm/kg (3000mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)

BEHAVIORAL: CHANGES IN MOTOR ACTIVITY (SPECIFIC ASSAY)

CARDIAC: OTHER CHANGES
Archiv fuer Experimentelle Pathologie und Pharmakologie. Vol. 50, Pg. 199, 1903.
mouse LD50 intraperitoneal > 1gm/kg (1000mg/kg) BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) Journal of Pharmaceutical Sciences. Vol. 60, Pg. 1058, 1971.
mouse LD50 intravenous 600mg/kg (600mg/kg)   Archives Internationales de Pharmacodynamie et de Therapie. Vol. 93, Pg. 143, 1953.
rat LD50 intravenous > 3gm/kg (3000mg/kg)   United States Patent Document. Vol. #3380887,
rat LDLo oral 11gm/kg (11000mg/kg) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD

LUNGS, THORAX, OR RESPIRATION: CYANOSIS
National Technical Information Service. Vol. OTS0571235,

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Moderately toxic by subcutaneous and intravenous routes. When heated to decomposition it emits toxic fumes of NOx.
Hazard Codes: IrritantXi
Risk Statements: 36/37-36/37/38
R36/37:Irritating to eyes and respiratory system. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 22-24/25-37/39-26-36
S22:Do not breathe dust. 
S24/25:Avoid contact with skin and eyes. 
S37/39:Wear suitable gloves and eye/face protection. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
WGK Germany: 3
F: 3-10
HS Code: 29337900

Specification

  2-Piperidone , with CAS number of 675-20-7, can be called a-Piperidone ; Piperidin-2-on ; 5-Pentanolactam ; Pentanoic acid, 5-amino-, lactam ; Piperidon ; Piperidone-2 ; Valerolactim ; delta-Valerolactam . It is a white to yellowish low melting crystalline mass, 2-Piperidone (CAS NO.675-20-7) is commonly used as organic reagents and pharmaceutical intermediates,etc.