CHES - ≥99.5%(T) , CAS No.103-47-9

CAS: 103-47-9 Cat. No.: C110897 Molecular Weight: 207.29 Beilstein Registry Number: 2967601 EC Number: 203-115-6
AVAILABLE TO ORDER
GRADE & PURITY ≥99.5%(T)
Synonyms
2-Cyclohexylaminoethanesulfonic Acid | N-Cyclohexyltaurine | 2-(N-Cyclohexylamino)ethanesulfonic acid
Storage
Protected from light,Room temperature,Argon charged,Desiccated,Cool
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25g
C110897-25g
3
$16.90
100g
C110897-100g
3
$44.90
Enter a quantity for the sizes you want to add.
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Why this grade

≥99.5%(T) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Protected from light,Room temperature,Argon charged,Desiccated,Cool Ships Normal 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 14 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

CHES (2-(Cyclohexylamino)ethanesulfonic acid) is a zwitterionic N-substituted aminosulfonic acid. CHES is used as a buffer for studying pH-dependent processes in enzymology. The compound has been shown to have an unusually high affinity for the iodoacetate binding site of liver alcohol dehydrogenase. The compound, which has a has a pKa of 9.49 at 25°C, is useful for the pH 8.6-10.0 range.

A zwitterionic buffering agent.

CHES has been used:

· as a buffer in mannanase activity assay of antarctic fungal isolates

· as a buffer for DNA digestion and labeling of 2′-deoxyadenosine 3′-monophosphate

· as a component of Wilson and Horne extraction buffer for characterization of rat plasma enzymes

Specifications

Synonyms
2-Cyclohexylaminoethanesulfonic Acid | N-Cyclohexyltaurine | 2-(N-Cyclohexylamino)ethanesulfonic acid
Specifications & Purity
≥99.5%(T)
Storage
Protected from light, Room temperature, Argon charged, Desiccated, Cool
Shipped In
Normal
Purity
≥99.5%(T)
Names and Identifiers
Pubchem Sid504754103
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504754103
Canonical SmilesC1CCC(CC1)NCCS(=O)(=O)O
IUPAC Name2-(cyclohexylamino)ethanesulfonic acid
InChIKeyMKWKNSIESPFAQN-UHFFFAOYSA-N
INCHI1S/C8H17NO3S/c10-13(11,12)7-6-9-8-4-2-1-3-5-8/h8-9H,1-7H2,(H,10,11,12)
Isomeric SMILES C1CCC(CC1)NCCS(=O)(=O)O
WGK Germany 3
Molecular Weight 207.29
Beilstein 2967601
Reaxy-Rn 2967601
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2967601&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 nitrogen compounds
ClassOrganonitrogen compounds
SubclassCyclohexylamines
Intermediate Tree Nodes Not available
Direct ParentCyclohexylamines
Alternative Parents Sulfonyls  Organosulfonic acids  Alkanesulfonic acids  Dialkylamines  Organopnictogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAliphatic homomonocyclic compounds
Substituents Cyclohexylamine - Alkanesulfonic acid - Sulfonyl - Organosulfonic acid - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Secondary amine - Secondary aliphatic amine - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organosulfur compound - Amine - Aliphatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as cyclohexylamines. These are organic compounds containing a cyclohexylamine moiety, which consist of a cyclohexane ring attached to an amine group.
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.

17 results found

Lot NumberCertificate TypeDateItem
F2615369Certificate of AnalysisMay 22, 2026 C110897
F2615354Certificate of AnalysisMay 22, 2026 C110897
F2216272Certificate of AnalysisMar 18, 2026 C110897
C2618604Certificate of AnalysisMar 14, 2026 C110897
C2618607Certificate of AnalysisMar 14, 2026 C110897
B2606233Certificate of AnalysisJan 31, 2026 C110897
J2511301Certificate of AnalysisSep 10, 2025 C110897
J2511312Certificate of AnalysisSep 10, 2025 C110897
E2514237Certificate of AnalysisApr 15, 2025 C110897
A2513076Certificate of AnalysisJan 03, 2025 C110897
I2411442Certificate of AnalysisAug 29, 2024 C110897
K2009191Certificate of AnalysisAug 16, 2024 C110897
D23141248Certificate of AnalysisMar 31, 2023 C110897
K2216365Certificate of AnalysisOct 27, 2022 C110897
K2216366Certificate of AnalysisOct 27, 2022 C110897
K1820021Certificate of AnalysisSep 17, 2022 C110897
F2216283Certificate of AnalysisJun 04, 2022 C110897

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Chemical and Physical Properties
SolubilitySoluble in water (103.6 g/l) at 20 °C.
SensitivityHygroscopic;Light sensitive
Melt Point(°C)>300℃
Molecular Weight207.290 g/mol
XLogP3-1.200
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count4
Rotatable Bond Count4
Exact Mass207.093 Da
Monoisotopic Mass207.093 Da
Topological Polar Surface Area74.800 Ų
Heavy Atom Count13
Formal Charge0
Complexity226.000
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. Chengyi Sun, Yaling Wang, Bao Jiang, Shanshan Hu, Yiqi Wang, Chong Zhang, Fei Liu, Yan Zhang, Guoao Li.  (2023)  Self-catalyst degradation of amoxicillin in alkaline condition driven by superoxide radical.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2023.146942]
2. Xiaoyu Du, Shanyu Zhang, Liying Wang, Yuqin Wang, Pingping Fan, Wendong Jia, Panke Zhang, Shuo Huang.  (2023)  Single-Molecule Interconversion between Chiral Configurations of Boronate Esters Observed in a Nanoreactor.  ACS Nano,      [PMID:36655995] [10.1021/acsnano.2c11286]
3. Jianwei Xin, Zhiwei Hu, Yangyang Liu, Lili Qiu, Zihui Meng, Wenxin Zhang, Jing Fan, Min Xue.  (2022)  Preparation of a glucose-sensitive one-dimensional photonic crystal via top–down nanocasting.  Analytical Methods,  14  (37): (3638-3643).  [PMID:36073356] [10.1039/D2AY01283A]
4. Yuting Li, Luhan Wang, Minhua Qian, Shengda Qi, Lei Zhou, Qiaosheng Pu.  (2022)  Concise analysis of γ-hydroxybutyric acid in beverages and urine by capillary electrophoresis with capacitively coupled contactless conductivity detection using 4-(2-hydroxyethyl)-1-piperazineethanesulfonic acid as background electrolyte.  JOURNAL OF CHROMATOGRAPHY A,      [PMID:35675730] [10.1016/j.chroma.2022.463191]
5. Zhuozhi Ouyang, Fadan Lei, Endian Hu, Shuxing Li, Qian Yao, Xuetao Guo.  (2022)  New insight into transformation of tetracycline in presence of Mn(II): Oxidation versus photolysis.  ENVIRONMENTAL POLLUTION,      [PMID:35176411] [10.1016/j.envpol.2022.118998]
6. Dong Cheng, Wenjuan Liao, Songhu Yuan.  (2020)  Effect of in situ generated iron oxyhydroxide coatings on FeS oxygenation and resultant hydroxyl radical production for contaminant degradation.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2020.124961]
7. Chenyan Geng, Haiyan Sun, Lihui Ma, Cheng Ling, Ming Fu, Dawei He, Yongsheng Wang.  (2019)  3D Hybrid Plasmonic Photonic Crystals by Colloidal-Crystal Templating and Hydrogel-Assisted Conformal Metal Etching.  Advanced Optical Materials,  (20): (1900599).  [PMID:] [10.1002/adom.201900599]
8. Yu Xie, Lin Gu, Shun Mao, Deli Wu, Jinhong Fan.  (2019)  The role of structural elements and its oxidative products on the surface of ferrous sulfide in reducing the electron-withdrawing groups of tetracycline.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2019.122195]
9. Xianqi Feng, Jun Xu, Yanxia Liu, Wenpeng Zhao.  (2019)  Visual sensors of an inverse opal hydrogel for the colorimetric detection of glucose.  Journal of Materials Chemistry B,  (22): (3576-3581).  [PMID:] [10.1039/C9TB00226J]
10. Tong-liang Wu, Qian Sun, Guo-dong Fang, Pei-xin Cui, Cun Liu, Marcelo Eduardo Alves, Wen-xiu Qin, Dong-mei Zhou, Zhen-qing Shi, Yu-jun Wang.  (2019)  Unraveling the effects of gallic acid on Sb(III) adsorption and oxidation on goethite.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2019.03.085]
11. Ying Liu, Xiaoyan Chen, Yulin Yang, Yong Feng, Deli Wu, Shun Mao.  (2018)  Activation of persulfate with metal–organic framework-derived nitrogen-doped porous Co@C nanoboxes for highly efficient p-Chloroaniline removal.  CHEMICAL ENGINEERING JOURNAL,      [PMID:] [10.1016/j.cej.2018.10.012]
12. Fei Xue, Zihui Meng, Fengyan Wang, Qiuhong Wang, Min Xue, Zhibin Xu.  (2014)  A 2-D photonic crystal hydrogel for selective sensing of glucose.  Journal of Materials Chemistry A,  (25): (9559-9565).  [PMID:] [10.1039/C4TA01031K]
13. Pingping Fan, Kui Li, Tian Li, Panke Zhang, Shuo Huang.  (2024)  Nanopore signatures of major alcoholic beverages.  Matter,      [PMID:] [10.1016/j.matt.2024.11.025]
14. Kui Li, Tian Li, Kefan Wang, Yifan Wang, Zixuan Wang, Bingxiao Cheng, Yusheng Ouyang, Panke Zhang, Shuo Huang.  (2025)  In-house nanopore analysis of urine metabolites and its applications in nutrition and sport monitoring.  Matter,      [PMID:] [10.1016/j.matt.2025.102329]
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