Propiolic acid - ≥95% , CAS No.471-25-0

CAS: 471-25-0 Cat. No.: P109569 Molecular Weight: 70.05 Beilstein Registry Number: 878176 EC Number: 207-437-8
AVAILABLE TO ORDER
GRADE & PURITY ≥95%
Synonyms
NSC 16152 | Propinsaeure | Acetylenecarboxylic acid | prop-2-ynoic acid | Acetylenemonocarboxylate | NSC16152 | NSC-16152 | Propargylic acid | DTXSID6060050 | propinic acid | 2-PROPYNE-1-CARBOXYLIC ACID | BBL011346 | acetylenemonocarboxylic acid | CHEBI:3
Storage
Store at 2-8°C,Argon charged
Shipped In
Wet ice,FedEx DG Service
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
P109569-5g
2
$67.90
25g
P109569-25g
8-12 wks(?) Production requires sourcing of materials. We appreciate your patience and understanding.
$289.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥95% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

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

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Quality documents

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

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Literature proof

Cited in 18 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

It possesses the dual characteristics of alkyne and carboxylic acid, and can undergo reduction, addition, oxidation, esterification, cyclization, as well as reactions such as salt formation and acyl chloride generation. It is soluble in water. It is used as a reagent for synthesizing transition metal complexes, haloalkyl propynoates and haloacrylates.

Specifications

Synonyms
NSC 16152 | Propinsaeure | Acetylenecarboxylic acid | prop-2-ynoic acid | Acetylenemonocarboxylate | NSC16152 | NSC-16152 | Propargylic acid | DTXSID6060050 | propinic acid | 2-PROPYNE-1-CARBOXYLIC ACID | BBL011346 | acetylenemonocarboxylic acid | CHEBI:3
Specifications & Purity
≥95%
Storage
Store at 2-8°C, Argon charged
Shipped In
Wet ice, FedEx DG Service
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥95%
Names and Identifiers
Canonical SmilesC#CC(=O)O
IUPAC Nameprop-2-ynoic acid
InChIKeyUORVCLMRJXCDCP-UHFFFAOYSA-N
INCHI1S/C3H2O2/c1-2-3(4)5/h1H,(H,4,5)
Isomeric SMILES C#CC(=O)O
WGK Germany 3
RTECS UD9300000
UN Number 2920
Packing Group II
Molecular Weight 70.05
Beilstein 878176
Reaxy-Rn 878176
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=878176&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 acids and derivatives
ClassCarboxylic acids and derivatives
SubclassCarboxylic acids
Intermediate Tree Nodes Not available
Direct ParentCarboxylic acids
Alternative Parents Monocarboxylic acids and derivatives  Acetylides  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  
Molecular FrameworkAliphatic acyclic compounds
Substituents Acetylide - Monocarboxylic acid or derivatives - Carboxylic acid - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Carbonyl group - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as carboxylic acids. These are compounds containing a carboxylic acid group with the formula -C(=O)OH.
External Descriptors terminal acetylenic compound - monounsaturated fatty acid - acetylenic fatty acid - short-chain fatty acid
3D Structure
Interactive Chemical Structure Model





Mechanisms of Action
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.

11 results found

Lot NumberCertificate TypeDateItem
C2626103Certificate of AnalysisMar 25, 2025 P109569
E2527601Certificate of AnalysisMar 25, 2025 P109569
E2527602Certificate of AnalysisMar 25, 2025 P109569
D2304269Certificate of AnalysisJan 09, 2025 P109569
G23181156Certificate of AnalysisJul 26, 2023 P109569
G23181150Certificate of AnalysisJul 26, 2023 P109569
D2304282Certificate of AnalysisApr 13, 2023 P109569
K2223625Certificate of AnalysisNov 28, 2022 P109569
K2223715Certificate of AnalysisNov 28, 2022 P109569
A2213572Certificate of AnalysisMar 14, 2022 P109569
A2214064Certificate of AnalysisDec 28, 2021 P109569

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Chemical and Physical Properties
SolubilityMiscible with water, ether, ethanol and chloroform.
SensitivityLight sensitive;Moisture sensitive
Refractive Index1.4290 to 1.4350
Flash Point(°F)136.4 °F
Flash Point(°C)58℃
Boil Point(°C)58°C/12mmHg
Melt Point(°C)16-18°C
Molecular Weight70.050 g/mol
XLogP30.300
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count2
Rotatable Bond Count0
Exact Mass70.0055 Da
Monoisotopic Mass70.0055 Da
Topological Polar Surface Area37.300 Ų
Heavy Atom Count5
Formal Charge0
Complexity84.300
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Documents & Articles
Citations of This Product
References
1. Yu Wang, Ye Wu, Bo Zhang, Cheng Zheng, Cheng Hu, Chuan Guo, Qingquan Kong, Yunbing Wang.  (2023)  Repair of degenerative nucleus pulposus by polyphenol nanosphere-encapsulated hydrogel gene delivery system.  BIOMATERIALS,      [PMID:37156085] [10.1016/j.biomaterials.2023.122132]
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6. Shangying Zhang, Fengna Dai, Zhao Ke, Qi Wang, Chunhai Chen, Guangtao Qian, Youhai Yu.  (2021)  A novel porous hollow carboxyl-polysulfone microsphere for selective removal of cationic dyes.  CHEMOSPHERE,      [PMID:34890624] [10.1016/j.chemosphere.2021.133205]
7. Ning Zhang, Daquan Wang, Xunan Jing, Tingting Yang, Hongbo Yang, Lingjie Meng.  (2021)  pH/ROS Dual-Responsive Polymer–Drug-Based Nanocarriers: Click-Reaction Preparation and Fluorescence Imaging-Guided Chemotherapy and Photodynamic Therapy.  ACS Applied Bio Materials,      [PMID:35006916] [10.1021/acsabm.1c00569]
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10. Jiangtao Liu, Yan Li, Min Zhao, Zhongli Lei, Hui Guo, Yuping Tang, Hao Yan.  (2020)  Redox-responsive hollow mesoporous silica nanoparticles constructed via host–guest interactions for controllable drug release.  JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION,      [PMID:31791208] [10.1080/09205063.2019.1700601]
11. Mingliang Pei, Xu Jia, Peng Liu.  (2018)  Design of Janus-like PMMA-PEG-FA grafted fluorescent carbon dots and their nanoassemblies for leakage-free tumor theranostic application.  MATERIALS & DESIGN,      [PMID:] [10.1016/j.matdes.2018.06.007]
12. Cao Jun, Zheng Haoran, Hu Rui, Liao Jianhong, Fei Zengming, Wei Xuan, Xiong Xiong, Zhang Fanglin, Zheng Hua, Li Dan.  (2017)  pH-Responsive Nanoparticles Based on Covalently Grafted Conjugates of Carboxymethyl Chitosan and Daunorubicin for the Delivery of Anti-Cancer Drugs.  Journal of Biomedical Nanotechnology,  13  (12): (1647-1659).  [PMID:29490753] [10.1166/jbn.2017.2462]
13. Yuan Zhou, Zhanfang Ma.  (2016)  A novel fluorescence enhanced route to detect copper(II) by click chemistry-catalyzed connection of Au@SiO2 and carbon dots.  SENSORS AND ACTUATORS B-CHEMICAL,      [PMID:] [10.1016/j.snb.2016.04.112]
14. Liyan Shi, Kaikai Ding, Xin Sun, Ling Zhang, Tian Zeng, Yihua Yin, Hua Zheng.  (2016)  Preparation, characterization, and in vitro drug release behavior of glutathione-sensitive long-circulation micelles based on polyethylene glycol prodrug.  JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION,      [PMID:26764973] [10.1080/09205063.2016.1140502]
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