3-Butyn-2-ol - ≥97% , CAS No.2028-63-9

CAS: 2028-63-9 Cat. No.: B106248 Molecular Weight: 70.09 Beilstein Registry Number: 1(4)2218 EC Number: 217-978-1
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
3-but-1-ynol | BCP05896 | BRN 0635722 | .alpha.-Methylpropargyl alcohol | 1-Ethynylethanol | (+/-)-3-butyn-2-ol | 1-methylprop-2-ynol | 1-Methylpropargyl alcohol | 1-Methyl-2-propynyl alcohol | B1001 | HC.$.CCH(CH3)OH | MFCD00004541 | 3-Butyn-2-ol | B0750
Storage
Store at 2-8°C
Shipped In
Wet ice,FedEx DG Service
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5ml
B106248-5ml
≥10
$24.90
25ml
B106248-25ml
1
$97.90
100ml
B106248-100ml
2
$332.90
500ml
B106248-500ml
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$1,360.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C Ships Wet ice,FedEx DG Service Check lot-specific COA for exact specifications.

📋

Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

📚

Literature proof

Cited in 5 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
3-but-1-ynol | BCP05896 | BRN 0635722 | .alpha.-Methylpropargyl alcohol | 1-Ethynylethanol | (+/-)-3-butyn-2-ol | 1-methylprop-2-ynol | 1-Methylpropargyl alcohol | 1-Methyl-2-propynyl alcohol | B1001 | HC.$.CCH(CH3)OH | MFCD00004541 | 3-Butyn-2-ol | B0750
Specifications & Purity
≥97%
Storage
Store at 2-8°C
Shipped In
Wet ice, FedEx DG Service
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥97%
Names and Identifiers
Canonical SmilesCC(C#C)O
IUPAC Namebut-3-yn-2-ol
InChIKeyGKPOMITUDGXOSB-UHFFFAOYSA-N
INCHI1S/C4H6O/c1-3-4(2)5/h1,4-5H,2H3
Isomeric SMILES CC(C#C)O
WGK Germany 3
RTECS ES0709800
UN Number 2929
Packing Group II
Molecular Weight 70.09
Beilstein 1(4)2218
Reaxy-Rn 635722
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=635722&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassOrganic oxygen compounds
ClassOrganooxygen compounds
SubclassAlcohols and polyols
Intermediate Tree Nodes Not available
Direct ParentSecondary alcohols
Alternative Parents Acetylides  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Secondary alcohol - Acetylide - Hydrocarbon derivative - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as secondary alcohols. These are compounds containing a secondary alcohol functional group, with the general structure HOC(R)(R') (R,R'=alkyl, aryl).
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

10 results found

Lot NumberCertificate TypeDateItem
A2514031Certificate of AnalysisJan 17, 2025 B106248
E2626131Certificate of AnalysisJan 17, 2025 B106248
K2520017Certificate of AnalysisJan 17, 2025 B106248
K2520066Certificate of AnalysisJan 17, 2025 B106248
C2301668Certificate of AnalysisDec 10, 2024 B106248
C2301670Certificate of AnalysisDec 10, 2024 B106248
C2301677Certificate of AnalysisDec 10, 2024 B106248
C2301678Certificate of AnalysisDec 10, 2024 B106248
C2526414Certificate of AnalysisJun 17, 2024 B106248
G2131059Certificate of AnalysisMay 09, 2023 B106248
Chemical and Physical Properties
SolubilitySolubility in water: Completely miscible; Miscible with Methanol
Refractive Index1.425-1.427
Flash Point(°C)34℃
Boil Point(°C)66-67 °C/150 mmHg
Molecular Weight70.090 g/mol
XLogP30.100
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count1
Rotatable Bond Count0
Exact Mass70.0419 Da
Monoisotopic Mass70.0419 Da
Topological Polar Surface Area20.200 Ų
Heavy Atom Count5
Formal Charge0
Complexity57.300
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count1
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Citations of This Product
References
1. Zhengyuan Zhang, Yu Liu, Xiaochuan Shui, Youqing Yu, Chunyan Zheng, Yuechuan Wang.  (2021)  Free radical polymerization of acrylates bearing acetylene for preparation of clickable polymers.  POLYMER,      [PMID:] [10.1016/j.polymer.2021.123906]
2. Ji Xiaoli, Chen Fan, Liu Jian, Ma Qianqian, Qiao Ruochen, Xu Zhihao.  (2024)  Synthesis of MWCNTs/Si3N4 Nanocomposites Via Click Chemistry and Electromagnetic Wave-Absorption Properties.  JOURNAL OF ELECTRONIC MATERIALS,      [PMID:] [10.1007/s11664-024-11601-z]
3. Ji Xiaoli, Ma Qianqian, Liu Jian, Yuan Haoze, Ma Xukai.  (2024)  Synthesis of TiO2/MWCNTs nanocomposites by click chemistry and its microwave absorption properties.  BULLETIN OF MATERIALS SCIENCE,  47  (3): (1-13).  [PMID:] [10.1007/s12034-024-03250-z]
4. Xiaoli Ji, Fan Chen, Jian Liu, Qianqian Ma, Zhihao Xu, Ruochen Qiao.  (2025)  Preparation of MWCNTs/Si3N4/PPy ternary composites via click chemistry and wave-absorbing properties.  VACUUM,      [PMID:] [10.1016/j.vacuum.2025.114570]
5. Yun Fang, Yong Yan, Xiayan Wang, Guangsheng Guo.  (2025)  Bimetallic PdCu nanohybrid sheets for enhanced electrocatalytic selective semi-hydrogenation of alkynols.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2025.164620]
Solution Calculators
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