AVAILABLE TO ORDER
GRADE & PURITY ≥99%(T)
Synonyms
CHES | 2-(Cyclohexylamino)ethanesulfonic acid pound CHES pound(c) | W-108849 | 2-(Cyclohexylamino)ethanesulfonic acid | CHES, Vetec(TM) reagent grade, 99% | DF6D31A1-88EA-4A0F-907D-9F40C66339BF | DB03309 | 2-(Cyclohexylamino)ethanesulphonic acid | HY-D08
Storage
Room temperature,Argon charged,Desiccated,Cool
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
5g
C110898-5g
2
$9.90
25g
C110898-25g
2
$14.90
100g
C110898-100g
2

$31.90

$39.90
Save $8.00 (20.05%)
500g
C110898-500g
4

$90.90

$136.90
Save $46.00 (33.60%)
Enter a quantity for the sizes you want to add.

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.

Specifications

Synonyms
CHES | 2-(Cyclohexylamino)ethanesulfonic acid pound CHES pound(c) | W-108849 | 2-(Cyclohexylamino)ethanesulfonic acid | CHES, Vetec(TM) reagent grade, 99% | DF6D31A1-88EA-4A0F-907D-9F40C66339BF | DB03309 | 2-(Cyclohexylamino)ethanesulphonic acid | HY-D08
Specifications & Purity
≥99%(T)
Storage
Room temperature, Argon charged, Desiccated, Cool
Shipped In
Normal
Purity
≥99%(T)
Names and Identifiers
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.

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✅ 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.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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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.

30 results found

Lot NumberCertificate TypeDateItem
F2615373Certificate of AnalysisJun 30, 2026 C110898
K1819083Certificate of AnalysisJun 11, 2026 C110898
B2606233Certificate of AnalysisFeb 11, 2026 C110898
B2609055Certificate of AnalysisFeb 11, 2026 C110898
J2511343Certificate of AnalysisOct 17, 2025 C110898
J2511307Certificate of AnalysisOct 17, 2025 C110898
E2514239Certificate of AnalysisMay 24, 2025 C110898
E2514238Certificate of AnalysisMay 24, 2025 C110898
E2514236Certificate of AnalysisMay 24, 2025 C110898
A2513073Certificate of AnalysisJan 14, 2025 C110898
A2513068Certificate of AnalysisJan 14, 2025 C110898
I2411446Certificate of AnalysisSep 13, 2024 C110898
I2411435Certificate of AnalysisSep 13, 2024 C110898
I2411434Certificate of AnalysisSep 13, 2024 C110898
I2411433Certificate of AnalysisSep 13, 2024 C110898
G2404527Certificate of AnalysisApr 26, 2024 C110898
G2404529Certificate of AnalysisApr 26, 2024 C110898
L1913174Certificate of AnalysisOct 19, 2023 C110898
D23141246Certificate of AnalysisApr 20, 2023 C110898
D23141243Certificate of AnalysisApr 20, 2023 C110898
D23141249Certificate of AnalysisApr 20, 2023 C110898
C23181051Certificate of AnalysisMar 23, 2023 C110898
C23181049Certificate of AnalysisMar 23, 2023 C110898
B2318478Certificate of AnalysisFeb 27, 2023 C110898
K2216369Certificate of AnalysisNov 22, 2022 C110898
K2216370Certificate of AnalysisNov 22, 2022 C110898
K2216371Certificate of AnalysisNov 22, 2022 C110898
F2216288Certificate of AnalysisDec 14, 2021 C110898
F2216287Certificate of AnalysisDec 14, 2021 C110898
L2109288Certificate of AnalysisDec 14, 2021 C110898

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Chemical and Physical Properties
SolubilitySoluble in water (103.6 g/l) at 20 °C.
SensitivityHygroscopic
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
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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