3-Methyl-1-pentyn-3-ol
Synonym(s):Ethyl ethynyl methyl carbinol;Meparfynol
- CAS NO.:77-75-8
- Empirical Formula: C6H10O
- Molecular Weight: 98.14
- MDL number: MFCD00004479
- EINECS: 201-055-5
- SAFETY DATA SHEET (SDS)
- Update Date: 2024-03-04 15:33:55
What is 3-Methyl-1-pentyn-3-ol?
Chemical properties
Clear slightly yellow liquid or low melting solid
Originator
Citodorm,Haury
The Uses of 3-Methyl-1-pentyn-3-ol
Stabilizer in chlorinated solvents, viscousreducer, electroplating brightener, intermediate insyntheses of hypnotics and isoprenoid chemicals,solvent for polyamide resins, acid inhibitor, preven-tion of hydrogen embrittlement, medicine (soporificand anesthetic).
The Uses of 3-Methyl-1-pentyn-3-ol
3-Methylpent-1-yn-3-ol is an inhibitor; used in method for preparing high-insulation solvent-free silicone resin for composite insulator.
Definition
ChEBI: Methylpentynol is a ynone.
Manufacturing Process
To 5 parts of sodium acetylene in absolute ether 6 parts of dry methyl ethyl ketone was slowly dropwise added with ice cooling and stirring. Than the reaction mixture was poured into excess of acetic acid by ice cooling and extracted with ether. The ether extract was washed with solution of potash for removing the diluted acetic acid and dried over potassium carbonate. The ether was distilled off and residual colorless oil methylpentynol had BP at 120°-121°C. Instead of sodium acetylene the solution of sodium acetylene in liquid ammonia may be successfully used.
brand name
Dormison (Schering).
Therapeutic Function
Sedative
Hazard
Moderate fire risk. Toxic.
Properties of 3-Methyl-1-pentyn-3-ol
Melting point: | -30 °C |
Boiling point: | 121-122 °C(lit.) |
Density | 0.866 g/mL at 25 °C(lit.) |
vapor density | 3 (vs air) |
vapor pressure | 6.5 mm Hg ( 20 °C) |
refractive index | n |
Flash point: | 80 °F |
storage temp. | Flammables area |
solubility | Cellosolve: miscible |
form | clear liquid |
pka | 13.34±0.29(Predicted) |
color | Colorless to Light yellow |
explosive limit | 1.8-16.0%(V) |
Merck | 13,5870 |
BRN | 969340 |
CAS DataBase Reference | 77-75-8(CAS DataBase Reference) |
NIST Chemistry Reference | Meparfynol(77-75-8) |
EPA Substance Registry System | 3-Methyl-1-pentyn-3-ol (77-75-8) |
Safety information for 3-Methyl-1-pentyn-3-ol
Signal word | Warning |
Pictogram(s) |
Flame Flammables GHS02 Exclamation Mark Irritant GHS07 |
GHS Hazard Statements |
H226:Flammable liquids H302:Acute toxicity,oral |
Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. |
Computed Descriptors for 3-Methyl-1-pentyn-3-ol
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