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4187-86-4

Basic Information
CAS No.: 4187-86-4
Name: 1-Pentyn-3-ol
Article Data: 37
Molecular Structure:
Molecular Structure of 4187-86-4 (1-Pentyn-3-ol)
Formula: C5H8 O
Molecular Weight: 84.1179
Synonyms: (RS)-1-Pentyn-3-ol;3-Hydroxy-1-pentyne; Ethylethynylcarbinol; NSC 60556
EINECS: 224-063-0
Density: 0.975
Melting Point: -24.1°C (estimate)
Boiling Point: 126.9°Cat760mmHg
Flash Point: 29 ºC
Solubility: Slightly soluble in water.
Appearance: CLEAR YELLOW LIQUID
Hazard Symbols:
Risk Codes: R10;R23/24/25   
Safety: 1098409
Transport Information: UN 1986
PSA: 20.23000
LogP: 0.39050
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Chemistry

Molecular Structure:

Molecular Formula: C5H8O
Molecular Weight: 84.1164
IUPAC Name: Pent-1-yn-3-ol
Synonyms of 1-Pentyn-3-ol (CAS NO.4187-86-4): 4-01-00-02224 (Beilstein Handbook Reference) ; AI3-28604 ; BRN 1098409 ; EINECS 224-063-0 ; Ethylethynylcarbinol ; NSC 60556
CAS NO: 4187-86-4
Product Categories: Drug / Therapeutic Agent 
Index of Refraction: 1.442
Molar Refractivity: 24.53 cm3
Molar Volume: 92.7 cm3
Surface Tension: 34.1 dyne/cm
Density: 0.907 g/cm3
Flash Point: 29.4 °C
Enthalpy of Vaporization: 42.5 kJ/mol
Boiling Point: 126.9 °C at 760 mmHg
Vapour Pressure of 1-Pentyn-3-ol (CAS NO.4187-86-4): 5.24 mmHg at 25°C

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
mouse LD50 oral 70mg/kg (70mg/kg)   Therapie. Vol. 11, Pg. 692, 1956.

Safety Profile

Hazard Codes of 1-Pentyn-3-ol (CAS NO.4187-86-4): ToxicT
Risk Statements: 10-23/24/25 
R10:Flammable. 
R23/24/25: Toxic by inhalation, in contact with skin and if swallowed.
Safety Statements: 16-36/37/39-45 
S16: Keep away from sources of ignition. 
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 the label whenever possible.)
RIDADR: UN 1986 3/PG 3
WGK Germany: 3
RTECS: SC4758500
HazardClass: 3
PackingGroup: III