Skip to Content
Merck
All Photos(2)

Key Documents

View All Documentation

137561

Sigma-Aldrich

3-Methyl-1-pentyn-3-ol

98%

Synonym(s):

Ethyl ethynyl methyl carbinol, Meparfynol

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Linear Formula:
CH≡CC(OH)(CH3)CH2CH3
CAS Number:
77-75-8
Molecular Weight:
98.14
Beilstein:
969340
EC Number:
201-055-5
MDL number:
MFCD00004479
UNSPSC Code:
12352100
PubChem Substance ID:
24848336
NACRES:
NA.22

vapor density

3 (vs air)

vapor pressure

6.5 mmHg ( 20 °C)

Assay

98%

form

liquid

refractive index

n20/D 1.431 (lit.)

bp

121-122 °C (lit.)

solubility

Cellosolve: miscible
Stoddard solvent: miscible
acetone: miscible
benzene: miscible
carbon tetrachloride: miscible
cyclohexanone: miscible
diethyl ether: soluble
diethylene glycol: miscible
ethanolamine: miscible
ethyl acetate: miscible
kerosene: miscible
mineral spirits: miscible
neatsfoot oil: miscible
petroleum ether: miscible
soybean oil: miscible

density

0.866 g/mL at 25 °C (lit.)

functional group

hydroxyl

SMILES string

CCC(C)(O)C#C

InChI

1S/C6H10O/c1-4-6(3,7)5-2/h1,7H,5H2,2-3H3

InChI key

QXLPXWSKPNOQLE-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

General description

3-Methyl-1-pentyn-3-ol acts as initiator during the synthesis of propargyl-terminated polylactide by bulk ring-opening polymerization.

Application

3-Methyl-1-pentyn-3-ol is propargyl alcohol that can be used as:
  • A reactant to synthesize α-methylene cyclic carbonates by reacting with carbon dioxide.
  • A reactant in the synthesis of 2,6,9-trisubstituted purine based CDK inhibitors.
  • An initiator in the synthesis of polylactide bearing terminal propargyl group via ring-opening polymerization of L-lactide.

Biochem/physiol Actions

3-Methyl-1-pentyn-3-ol is a sedative and induces hepatic P4503A in mouse.

Signal Word

Danger

Hazard Statements

H226,H302,H318,H412

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

82.4 °F - closed cup

Flash Point(C)

28 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCV9890
MKCP1836
MKCH7830
MKCD3994
MKBZ3269V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

H Teräväinen et al.
Journal of neurology, neurosurgery, and psychiatry, 49(2), 198-199 (1986-02-01)
Six patients with essential tremor tested in the therapeutic effectiveness of a 6-carbon alcohol, methylpentynol, 200 mg/day, against placebo in a randomised double-blind clinical cross-over trial. The effect of methylpentynol on postural tremor amplitude was not different from that of
Preparation of propargyl-terminated polylactide by the bulk ring-opening polymerization.
Liu X, et al.
Journal of Macromolecular Science, Part A: Pure and Applied Chemistry, 46(10), 937-942 (2009)
Cyclin-dependent kinase (CDK) inhibitors: development of a general strategy for the construction of 2, 6, 9-trisubstituted purine libraries. Part 3
Brun V, et al.
Tetrahedron Letters, 42(46), 8169-8171 (2001)
M I Walash et al.
Journal - Association of Official Analytical Chemists, 68(6), 1209-1212 (1985-11-01)
Titrimetric and spectrophotometric titration methods are described for the quantitative determination of acetylenic hypnotics ethchlorvynol, ethinamate, and meparfynol carbamate as pure substances and in dosage forms. The methods involve the use of different brominating agents. A known excess of the
A el-Brashy et al.
Pharmaceutisch weekblad. Scientific edition, 10(2), 90-92 (1988-04-22)
A titrimetric method is described for the determination of three acetylenic hypnotics, namely ethchlorvynol, ethinamate, and methylpentynol carbamate, in bulk and in dosage forms. The method involves the use of either 1,3-dibromo-5,5-dimethylhydantoin (DBH), N-bromosuccinimide (NBS) or N-bromophthalimide (NBP) as titrants.
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service