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3-Methylpent-1-en-4-yn-3-ol

HCID 97815
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Basic informationNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
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Basic information

CAS
3230-69-1
Standard SMILES
C#CC(C)(O)C=C
InChIKey
VBATUBQIYXCZPA-UHFFFAOYSA-N
Molecular formula
C6H8O
Average molar mass
96.13 g/mol
Monoisotopic mass
96.05751487

Names & identifiers

Preferred name
3-Methylpent-1-en-4-yn-3-ol
IUPAC
3-methylpent-1-en-4-yn-3-ol
English name
Ethynyl methyl vinyl carbinol
Molecular formula
C6H8O
Molecular weight
96.13

Names & synonyms

3-Methyl-1-penten-4-yn-3-ol3230-69-13-Methylpent-1-en-4-yn-3-olVBATUBQIYXCZPA-UHFFFAOYSA-DTXSID201309857RefChem:504294DTXCID50860237221-770-6InChI=1/C6H8O/c1-4-6(3,7)5-2/h1,5,7H,2H2,3H3Ethynyl methyl vinyl carbinol1-Penten-4-yn-3-ol, 3-methyl-3-Methyl-pent-4-en-1-yn-3-Ol
Show more names
2-Vinyl-3-butyn-2-ol1-Vinyl-1-ethynyltehanol3-Methylpenten-1-in-4-ol-33-methyl-1-penten-4-yn-3-o3-Methyl-4-penten-1-yn-3-ol3-METHYL-L-PENTEN-4-YL-3-0L4-Methyl-1-penten-3-yn-3-ol3-Methyl-1-penten-4-yl-3-ol
MFCD01709006NSC44005NSC-440053-Methyl pent-4-en-l-yn-3-0LEINECS 221-770-6NSC 44005BRN 1740552AI3-23711

Database identifiers

CAS
3230-69-1
PubChem CID
97815
DTXSID
DTXSID201309857
UNII
TQ5V2KNZ8Z
EC Number
221-770-6
Nikkaji
J49.976E

Properties

Computed structural properties

XLogP
0.7
Topological polar surface area
20.2 Ų
Hydrogen bond donors
1
Hydrogen bond acceptors
1
Rotatable bonds
2
Heavy atoms
7
Formal charge
0
Complexity
117

Physicochemical properties

Melting point
25 °C · 25°C (estimate)
Boiling point
63 · 63-65 °C/100 mmHg (lit.)
Density
0.89 g/mL · 0.89 g/mL at 25 °C (lit.)
refractive index
20 · n20/D 1.446(lit.)
Flash point
90 °F · 90 °F
pka
12.53 · 12.53±0.29(Predicted)
form
clear liquid
color
Colorless to Light yellow to Light orange
Specific Gravity
0.88 · 0.88
InChI
1S/C6H8O/c1-4-6(3,7)5-2/h1,5,7H,2H2,3H3
InChIKey
VBATUBQIYXCZPA-UHFFFAOYSA-N
SMILES
CC(O)(C=C)C#C
CAS DataBase Reference
3230 · 3230-69-1(CAS DataBase Reference)
EWG's Food Scores
1 · 1
NIST Chemistry Reference
3 · 3-Methyl-1-penten-4-yn-3-ol(3230-69-1)

Safety & regulation

Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.

GHS classification

GHS Classification · 4 items

Warning

H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]

P210, P233, P240, P241, P242, P243, P264, P270, P280, P301+P317, P303+P361+P353, P330, P370+P378, P403+P235, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 45 reports by companies from 5 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.

Hazard information

Regulatory InformationREACH registered substance: 3-methylpent-1-en-4-yn-3-ol (EC: 221-770-6)
Hazard Classes and CategoriesFlam. Liq. 3 (100%)

Safety data

PPE
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
wgk
1
rtecs
SB4950000
ridadr
UN 1760 8/PG 2
hs_code
29052900
Toxicity
mouse,LD50,oral,1350mg/kg (1350mg/kg),Journal of Pharmacology and Experimental Therapeutics. Vol. 107, Pg. 459, 1953.
risk_code
22-36/37/38
Signal word
Warning
Symbol(GHS)
GHS02,GHS07
hazard_code
Xn
safety_code
36-37/39-26
hazard_class
3
Storage Class

Chemistry & industry

Applications · 2 items

Uses3-Methyl-1-penten-4-yn-3-ol is used as a building block in organic synthesis including that of primary allenic amines and alcohols and also of pluraflavin A “Aglycon” which is cytotoxic.

General Description3-Methyl-1-penten-4-yn-3-ol is an acetylenic alcohol. It reacts with ruthenium vinyl carbene to form a ten-membered η2-olefin coordinated ruthenacycle. The efficiency of different palladium catalysts for the hydrogenation of 3-methyl-1-penten-4-yn-3-ol under continuous-flow liquid-phase conditions has been evaluated. It undergoes allylic rearrangement to form cis and trans isomers of 3-methyl-2-penten-4-yn-l-ol.

Upstream & downstream products

Upstream raw materials

CALCIUM ETHOXIDEMethyl vinyl ketone

Downstream products

Etretinate

Suppliers

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Related reactions

9 records
New reaction record
HRID 236704 reaction equation
HRID 236704As reactantuspto-grants-1979_06
HRID 262331 reaction equation
HRID 262331As reactantuspto-grants-1979_05
HRID 371970 reaction equation
HRID 371970As reactantuspto-grants-1978_05
HRID 442401 reaction equation
HRID 442401As reactantuspto-grants-1977_08
HRID 903396 reaction equation
HRID 903396As reactantuspto-grants-1980_10
HRID 1493128 reaction equation
HRID 1493128As reactantuspto-grants-1991_06
HRID 1763409 reaction equation
HRID 1763409As reactantuspto-grants-1978_09
HRID 1974211 reaction equation
HRID 1974211As reactantuspto-grants-1976_12
Page 1 of 2

Compound notes

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On this pageBasic informationNames & identifiersPropertiesSafety & regulationChemistry & industryRelated reactionsCompound notes
UNSPSC Code
12352100 · 12352100
NACRES
22 · NA.22
Symbol(GHS)
2 · GHS02,GHS07
Signal word
Warning
Hazard statements
226 · H226-H302
Precautionary statements
210 · P210-P301+P312+P330
PPE
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
Hazard Codes
Xn
Risk Statements
22 · 22-36/37/38
Safety Statements
36 · 36-37/39-26
RIDADR
1760 · UN 1760 8/PG 2
WGK Germany
1 · 1
RTECS
4950000 · SB4950000
HazardClass
3 · 3
PackingGroup
III
HS Code
29052900 · 29052900
Storage Class
3 · 3 - Flammable liquids
Hazard Classifications
4 OralFlam · Acute Tox. 4 OralFlam. Liq. 3
Toxicity
50 · mouse,LD50,oral,1350mg/kg (1350mg/kg),Journal of Pharmacology and Experimental Therapeutics. Vol. 107, Pg. 459, 1953.
REACH Registrations
Active
Limited Quantities
5 L · 5.0 L (1.3 gallons) (liquid)
Excepted Quantities
Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
3 - Flammable liquids
packing_group
III
Hazard statements
H226-H302
Limited Quantities
5.0 L (1.3 gallons) (liquid)
Excepted Quantities
Max Inner Pack (30g or 30ml) and Max Outer Pack (1Kg or 1L)
REACH Registrations
Active
Hazard Classifications
Acute Tox. 4 OralFlam. Liq. 3
Precautionary statements
P210-P301+P312+P330