| Identification | More | [Name]
3-Methyl-1-pentyn-3-ol | [CAS]
77-75-8 | [Synonyms]
2-ETHYNYL-2-BUTANOL
3-ETHYLBUTYNOL
3-METHYL-1-PENTYN-3-OL
ETHYL ETHYNYL METHYL CARBINOL
MEPARFYNOL
METHYLETHYLETHYNYLCARBINOL
methylpentynol
1-Pentyn-3-ol, 3-methyl-
1-Pentyn-3-ol,3-methyl-
2-Aethinylbutanol
2-Butanol, 2-ethynyl-
2-Ethinyl butanol-2
2-Ethinylbutanol
2-ethinylbutanol-2
2-ethynyl-2-butano
2-Ethynyl-2-butanol,Methylpentynol
3-Ethylbutanol
3-Ethylbutinol
3-Methyl-1-pentin-3-ol
3-methyl-1-pentyn-3-o | [EINECS(EC#)]
201-055-5 | [Molecular Formula]
C6H10O | [MDL Number]
MFCD00004479 | [Molecular Weight]
98.14 | [MOL File]
77-75-8.mol |
| Chemical Properties | Back Directory | [Appearance]
Clear slightly yellow liquid or low melting solid | [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 ]
n20/D 1.431(lit.)
| [Fp ]
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 | [Henry's Law Constant]
9.9×10-1 mol/(m3Pa) at 25℃, Hilal et al. (2008) | [Uses]
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). | [CAS DataBase Reference]
77-75-8(CAS DataBase Reference) | [NIST Chemistry Reference]
Meparfynol(77-75-8) | [EPA Substance Registry System]
77-75-8(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,F+ | [Risk Statements ]
R10:Flammable.
R22:Harmful if swallowed.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
S36:Wear suitable protective clothing .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [RIDADR ]
UN 1986 3/PG 3
| [WGK Germany ]
1
| [RTECS ]
SC4900000
| [TSCA ]
TSCA listed | [REACH Registrations]
Active | [HazardClass ]
3 | [PackingGroup ]
III | [HS Code ]
29052990 | [HS Code ]
29280090 | [Toxicity]
LD50 orally in mice, rats, guinea pigs: 600-900 mg/kg (Margolin) |
| Hazard Information | Back Directory | [Hazard]
Moderate fire risk. Toxic. | [Chemical Properties]
Clear slightly yellow liquid or low melting solid | [Originator]
Citodorm,Haury | [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 |
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