ChemicalBook > CAS DataBase List > 3-Methyl-1-pentyn-3-ol

3-Methyl-1-pentyn-3-ol

Product Name
3-Methyl-1-pentyn-3-ol
CAS No.
77-75-8
Chemical Name
3-Methyl-1-pentyn-3-ol
Synonyms
BDH;UTIL;Seral;Dalgol;Comesa;Olosot;Dorison;Hesofen;Hexofen;Macarol
CBNumber
CB3854314
Molecular Formula
C6H10O
Formula Weight
98.14
MOL File
77-75-8.mol
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3-Methyl-1-pentyn-3-ol Property

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.)
Flash point:
80 °F
storage temp. 
Flammables area
solubility 
Cellosolve: miscible
pka
13.34±0.29(Predicted)
form 
clear liquid
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)
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Safety

Hazard Codes 
Xn,F+
Risk Statements 
10-22-51/53-2017/10/22
Safety Statements 
23-36-61
RIDADR 
UN 1986 3/PG 3
WGK Germany 
1
RTECS 
SC4900000
HazardClass 
3
PackingGroup 
III
HS Code 
29052990
HS Code 
29280090
Toxicity
LD50 orally in mice, rats, guinea pigs: 600-900 mg/kg (Margolin)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H226Flammable liquid and vapour

H302Harmful if swallowed

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
137561
Product name
3-Methyl-1-pentyn-3-ol
Purity
98%
Packaging
100ml
Price
$77.8
Updated
2024/03/01
TCI Chemical
Product number
M0396
Product name
3-Methyl-1-pentyn-3-ol
Purity
>98.0%(GC)
Packaging
25mL
Price
$21
Updated
2024/03/01
GFS CHEMICALS
Product number
82171
Product name
3-METHYL-1-PENTYN-3-OL,98
Packaging
100g
Price
$118.64
Updated
2021/12/16
GFS CHEMICALS
Product number
82172
Product name
3-METHYL-1-PENTYN-3-OL,98
Packaging
500g
Price
$390.87
Updated
2021/12/16
Matrix Scientific
Product number
184621
Product name
3-Methylpent-1-yn-3-ol
Packaging
1g
Price
$400
Updated
2021/12/16
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3-Methyl-1-pentyn-3-ol Chemical Properties,Usage,Production

Chemical Properties

Clear slightly yellow liquid or low melting solid

Originator

Citodorm,Haury

Uses

3-Methylpent-1-yn-3-ol is an inhibitor; used in method for preparing high-insulation solvent-free silicone resin for composite insulator.

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).

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.

3-Methyl-1-pentyn-3-ol Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 3-Methyl-1-pentyn-3-ol manufacturers

Hebei Yanxi Chemical Co., Ltd.
Product
3-Methyl-1-pentyn-3-ol 77-75-8
Price
US $40.00/kg
Min. Order
1kg
Purity
0.99
Supply Ability
10 tons
Release date
2023-09-26

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