Cesium trifluoroacetate - ≥99% , CAS No.21907-50-6

CAS: 21907-50-6 Cat. No.: C303068 Molecular Weight: 245.92 EC Number: 627-070-0
AVAILABLE TO ORDER
GRADE & PURITY ≥99%
Synonyms
cesium | 2,2,2-trifluoroacetate
Storage
Room temperature,Argon charged,Desiccated
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
C303068-1g
5
$24.90
5g
C303068-5g
8
$59.90
25g
C303068-25g
1-2 wks(?)
Item is derived from our semi-finished stock and is processed in 1-2 weeks.
$199.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature,Argon charged,Desiccated Ships Normal 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 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Application:

It is used in acid catalyzed reactions, especially those where an ester is cleaved in peptide synthesis. Used as an ion pairing agent in liquid chromatography.

Specifications

Synonyms
cesium | 2, 2, 2-trifluoroacetate
Specifications & Purity
≥99%
Storage
Room temperature, Argon charged, Desiccated
Shipped In
Normal
Purity
≥99%
Names and Identifiers
Pubchem Sid488200548
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488200548
Canonical SmilesC(=O)(C(F)(F)F)[O-].[Cs+]
IUPAC Namecesium;2,2,2-trifluoroacetate
InChIKeyRJYSYRSELCQCSO-UHFFFAOYSA-M
INCHI1S/C2HF3O2.Cs/c3-2(4,5)1(6)7;/h(H,6,7);/q;+1/p-1
Isomeric SMILES C(=O)(C(F)(F)F)[O-].[Cs+]
Molecular Weight 245.92
Reaxy-Rn 4161420
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=4161420&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
SubclassAlpha-halocarboxylic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentAlpha-halocarboxylic acids
Alternative Parents Carboxylic acid salts  Organic metal halides  Organic alkali metal salts  Monocarboxylic acids and derivatives  Carboxylic acids  Organofluorides  Organic oxides  Hydrocarbon derivatives  Carbonyl compounds  Alkyl fluorides  Organic cations  
Molecular FrameworkAliphatic acyclic compounds
Substituents Alpha-halocarboxylic acid - Carboxylic acid salt - Organic metal halide - Carboxylic acid - Organic alkali metal salt - Monocarboxylic acid or derivatives - Alkyl fluoride - Alkyl halide - Organooxygen compound - Organofluoride - Organohalogen compound - Organic salt - Hydrocarbon derivative - Organic oxide - Carbonyl group - Organic oxygen compound - Organic cation - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as alpha-halocarboxylic acids. These are carboxylic acids containing a halogen atom bonded to the alpha carbon atom.
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.

18 results found

Lot NumberCertificate TypeDateItem
D2623123Certificate of AnalysisApr 10, 2026 C303068
D2623124Certificate of AnalysisApr 10, 2026 C303068
D2623125Certificate of AnalysisApr 10, 2026 C303068
F2312097Certificate of AnalysisMar 17, 2026 C303068
C23301007Certificate of AnalysisJan 19, 2026 C303068
K2524092Certificate of AnalysisJun 17, 2024 C303068
G2524068Certificate of AnalysisJun 17, 2024 C303068
G2411195Certificate of AnalysisJun 17, 2024 C303068
G2411194Certificate of AnalysisJun 17, 2024 C303068
G2411168Certificate of AnalysisJun 17, 2024 C303068
F2312100Certificate of AnalysisMay 31, 2023 C303068
F2312094Certificate of AnalysisMay 31, 2023 C303068
F2312093Certificate of AnalysisMay 31, 2023 C303068
F2312090Certificate of AnalysisMay 31, 2023 C303068
A2608026Certificate of AnalysisMay 31, 2023 C303068
J2209086Certificate of AnalysisAug 22, 2022 C303068
J2209120Certificate of AnalysisAug 22, 2022 C303068
J2209121Certificate of AnalysisAug 22, 2022 C303068

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Chemical and Physical Properties
SolubilitySoluble in water (2 M, clear, colorless) at 20°C. Soluble in organic solvents.
SensitivityMoisture sensitive
Melt Point(°C)115
Molecular Weight245.920 g/mol
XLogP3
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count5
Rotatable Bond Count0
Exact Mass245.89 Da
Monoisotopic Mass245.89 Da
Topological Polar Surface Area40.100 Ų
Heavy Atom Count8
Formal Charge0
Complexity87.800
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 Count2
Citations of This Product
References
1. Xianqi Wei, Jiayi Lu, Silong Zhang, Jiashu Tang, Shichao Wu, Tengbo Lv, Xiaoli Wang.  (2025)  Facile synthesis of CsPbBr3 perovskite for improved stability and luminescence behavior in an aquatic environment.  Frontiers in Chemistry,      [PMID:40070408] [10.3389/fchem.2025.1524254]
2. Jiaqi Wang, Hongye Dong, Zhirui Chen, Jingjing Hui, Xiangning Xu, Zijin Qiao, wang Yao, Qi Li, Cheng Mu.  (2025)  Mitigating Sn2+ Oxidation and Enhancing Device Performance in Tin-Based Perovskites Solar Cell via CsTFA Additive Strategy.  Sustainable Energy & Fuels,      [PMID:] [10.1039/D5SE00714C]
Solution Calculators
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