Basic information
- CAS
927-74-2- Standard SMILES
C#CCCO- InChIKey
OTJZCIYGRUNXTP-UHFFFAOYSA-N- Molecular formula
- C4H6O
- Average molar mass
- 70.09 g/mol
- Monoisotopic mass
- 70.04186481
Overview
But-3-yn-1-ol is a terminal acetylenic compound that is but-1-yne with one of the methyl hydrogens substituted by a hydroxy group. It is a member of butyn-1-ols and a terminal acetylenic compound.
Names & identifiers
- Preferred name
- 3-Butyn-1-OL
- IUPAC
- but-3-yn-1-ol
- English name
- 3-Butyn-1-ol
- Molecular formula
- C4H6O
- Molecular weight
- 70.09
Names & synonyms
Show more names
Database identifiers
- CAS
927-74-2- PubChem CID
- 13566
- DTXSID
DTXSID1022136- ChEBI
CHEBI:27444- UNII
- P74L430293
- EC Number
- 213-161-9
- Nikkaji
- J1.744B
Properties
Computed structural properties
- XLogP
- 0.1
- Topological polar surface area
- 20.2 Ų
- Hydrogen bond donors
- 1
- Hydrogen bond acceptors
- 1
- Rotatable bonds
- 1
- Heavy atoms
- 5
- Formal charge
- 0
- Complexity
- 47.9
Experimental & physicochemical properties
Physicochemical properties
- Melting point
- -63.6 °C · -63.6 °C (lit.)
- Boiling point
- 128.9 °C · 128.9 °C (lit.)
- Density
- 0.926 g/mL · 0.926 g/mL at 25 °C (lit.)
- refractive index
- 20 · n20/D 1.441(lit.)
- Flash point
- 97 °F · 97 °F
- storage temp.
- Keep in dark place,Sealed in dry,Room Temperature
- solubility
- Miscible with alcohols and organic solvents. Immiscible with aliphatic hydrocarbon solvents.
- form
- Liquid
- pka
- 14.22 · 14.22±0.10(Predicted)
- Specific Gravity
- 0.972 · 0.972
- color
- Clear colorless to light yellow
- BRN
- 773710 · 773710
- Stability
- Stable. Substances to be avoided include oxidizing agents, acids and acid anhydrides, copper and copper alloys. Flammable.
- InChI
- 1S/C4H6O/c1-2-3-4-5/h1,5H,3-4H2
- InChIKey
- OTJZCIYGRUNXTP-UHFFFAOYSA-N
- SMILES
- OCCC#C
- LogP
- 0.13 · 0.130 (est)
- CAS DataBase Reference
- 927 · 927-74-2(CAS DataBase Reference)
- EWG's Food Scores
- 1 · 1
- FDA UNII
- 74 L430293 · P74L430293
- NIST Chemistry Reference
- 3 · 3-Butyn-1-ol(927-74-2)
- EPA Substance Registry System
- 3 · 3-Butyn-1-ol (927-74-2)
- UNSPSC Code
- 12352100 · 12352100
- NACRES
- 22 · NA.22
- Symbol(GHS)
- 2 · GHS02,GHS07
- Signal word
- Warning
- Hazard statements
- 226 · H226-H315-H319-H335
- Precautionary statements
- 210 · P210-P302+P352-P305+P351+P338
- target organs
- Respiratory system
- PPE
- Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
- Hazard Codes
- Xi,F
- Risk Statements
- 10 · 10-36/37/38
- Safety Statements
- 26 · 26-36-37/39-16
- RIDADR
- 1986 · UN 1986 3/PG 3
- WGK Germany
- 3 · 3
- RTECS
- 710000 · ES0710000
- TSCA
- TSCA listed
- HazardClass
- 3 · 3
- PackingGroup
- III
- HS Code
- 29052990 · 29052990
- Storage Class
- 3 · 3 - Flammable liquids
- Hazard Classifications
- 2 Flam · Eye Irrit. 2Flam. Liq. 3Skin Irrit. 2STOT SE 3
- REACH Registrations
- Active
Safety & regulation
GHS classification
GHS Classification
Warning
H226 (100%): Flammable liquid and vapor [Warning Flammable liquids]
P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P271, P280, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)
Aggregated GHS information provided per 106 reports by companies from 13 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Hazard information
Regulatory Information
PMN - indicates a commenced PMN (Pre-Manufacture Notices) substance.
Status: Active Update: 24-05-2016 https://echa.europa.eu/registration-dossier/-/registered-dossier/17378
3-Butyn-1-ol: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Safety data
- PPE
- Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
- wgk
- 3
- tsca
- TSCA listed
- rtecs
- ES0710000
- ridadr
- UN 1986 3/PG 3
- hs_code
- 29052990
- risk_code
- 10-36/37/38
- Signal word
- Warning
- Symbol(GHS)
- GHS02,GHS07
- hazard_code
- Xi,F
- safety_code
- 26-36-37/39-16
- hazard_class
- 3
- Storage Class
- 3 - Flammable liquids
- packing_group
- III
- target organs
- Respiratory system
- Hazard statements
- H226-H315-H319-H335
- REACH Registrations
- Active
- Hazard Classifications
- Eye Irrit. 2Flam. Liq. 3Skin Irrit. 2STOT SE 3
- Precautionary statements
- P210-P302+P352-P305+P351+P338
Chemistry & industry
Uses & manufacturing
Applications
Uses3-butyn-1-ol is used in the study of a palladium-catalyzed coupling with beta-tetrionic acid bromide to prepare alkynyl substituted furanones. It is also used to prepare Markovnikov addition product. Further, it is used as an intermediate of an active pharmaceutical ingredient such as fexofenadine.
UsesSynthon for preparation of oxygen-containing heterocycles and protected esters of s-Hydroxy-L-isoleucine
Uses(3-Butyn-1-ol) Alkynyl substrate used in a study of a palladium-catalyzed coupling with β-tetrionic acid bromide leading to alkynyl substituted furanones in good yield.1
General DescriptionThe enthalpies of combustion and vaporization of 3-butyn-1-ol is measured by static bomb combustion calorimetry and correlation gas chromatography techniques.
Upstream & downstream products
Downstream products
Suppliers100 total
Additional notes
DefinitionChEBI: A terminal acetylenic compound that is but-1-yne with one of the methyl hydrogens substituted by a hydroxy group.
Related reactions
Compound notes
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