TES - Ultra pure, ≥99.5%(T) , CAS No.7365-44-8

CAS: 7365-44-8 Cat. No.: T105114 Molecular Weight: 229.25 Beilstein Registry Number: 1957061 EC Number: 230-906-3 PubChem CID: 81831
AVAILABLE TO ORDER
GRADE & PURITY Ultra pure ? Ultra-pure grade with very low impurity content across the board. Use for trace analysis, electronics, or processes intolerant of contamination. ≥99.5%(T)
Synonyms
2-{[2-hydroxy-1,1-bis(hydroxymethyl)ethyl]ammonio}ethanesulfonate | N-Tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid
Storage
Room temperature,Desiccated
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25g
T105114-25g
6
$47.90
100g
T105114-100g
6
$154.90
500g
T105114-500g
1
$657.90
Enter a quantity for the sizes you want to add.
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Why this grade

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

🌡

Storage & shipping

Room temperature,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 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

useful pH range 6.8 - 8.2 pKa (25 °C) 7.5
A structural analog to Tris buffer.

Specifications

Synonyms
2-{[2-hydroxy-1, 1-bis(hydroxymethyl)ethyl]ammonio}ethanesulfonate | N-Tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid
Specifications & Purity
Ultra pure, ≥99.5%(T)
Biochemical and Physiological Mechanisms
TES is a structural analog to Tris buffer. It is one of the ethanesulfonic acid series of biological buffers developed by Good et al. Good’s buffer criteria: midrange pKa, maximum water solubility and minimum solubility in all other solvents, minimal salt
Storage
Room temperature, Desiccated
Shipped In
Normal
Grade
Ultra pure
Purity
≥99.5%(T)
Names and Identifiers
Pubchem Sid504755558
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/504755558
Canonical SmilesC(CS(=O)(=O)O)NC(CO)(CO)CO
IUPAC Name2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]ethanesulfonic acid
InChIKeyJOCBASBOOFNAJA-UHFFFAOYSA-N
INCHI1S/C6H15NO6S/c8-3-6(4-9,5-10)7-1-2-14(11,12)13/h7-10H,1-5H2,(H,11,12,13)
Isomeric SMILES C(CS(=O)(=O)O)NC(CO)(CO)CO
WGK Germany 1
PubChem CID 81831
Molecular Weight 229.25
Beilstein 1957061
Reaxy-Rn 1957061

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
ClassOrganic sulfonic acids and derivatives
SubclassOrganosulfonic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentOrganosulfonic acids
Alternative Parents Sulfonyls  Alkanesulfonic acids  1,2-aminoalcohols  Dialkylamines  Primary alcohols  Organopnictogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Organosulfonic acid - Sulfonyl - Alkanesulfonic acid - 1,2-aminoalcohol - Secondary aliphatic amine - Secondary amine - Organopnictogen compound - Organic oxygen compound - Alcohol - Primary alcohol - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Organic nitrogen compound - Amine - Organic oxide - Hydrocarbon derivative - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as organosulfonic acids. These are compounds containing the sulfonic acid group, which has the general structure RS(=O)2OH (R is not a hydrogen atom).
External Descriptors amino sulfonic acid - ethanolamines - TES
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.

24 results found

Lot NumberCertificate TypeDateItem
J2530783Certificate of AnalysisOct 16, 2025 T105114
J2530782Certificate of AnalysisOct 16, 2025 T105114
J2530781Certificate of AnalysisOct 16, 2025 T105114
C2517555Certificate of AnalysisFeb 11, 2025 T105114
C2517571Certificate of AnalysisFeb 11, 2025 T105114
C2517616Certificate of AnalysisFeb 11, 2025 T105114
G2429489Certificate of AnalysisJul 13, 2024 T105114
G2429502Certificate of AnalysisJul 13, 2024 T105114
G2429503Certificate of AnalysisJul 13, 2024 T105114
G2418437Certificate of AnalysisJul 06, 2024 T105114
F2403227Certificate of AnalysisMay 20, 2024 T105114
F2403228Certificate of AnalysisMay 20, 2024 T105114
F2403229Certificate of AnalysisMay 20, 2024 T105114
F2403230Certificate of AnalysisMay 20, 2024 T105114
J2325659Certificate of AnalysisOct 12, 2023 T105114
J2325660Certificate of AnalysisOct 12, 2023 T105114
C2322550Certificate of AnalysisFeb 25, 2023 T105114
K2214031Certificate of AnalysisNov 15, 2022 T105114
B2310240Certificate of AnalysisOct 31, 2022 T105114
K2211551Certificate of AnalysisOct 31, 2022 T105114
K2211554Certificate of AnalysisOct 31, 2022 T105114
K2211574Certificate of AnalysisOct 31, 2022 T105114
A2310526Certificate of AnalysisOct 31, 2022 T105114
K2209140Certificate of AnalysisNov 18, 2021 T105114

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Chemical and Physical Properties
SolubilitySoluble in water (500 mg/ml).
SensitivityHygroscopic
Melt Point(°C)216 °C(dec.)
Molecular Weight229.250 g/mol
XLogP3-5.800
Hydrogen Bond Donor Count5
Hydrogen Bond Acceptor Count7
Rotatable Bond Count7
Exact Mass229.062 Da
Monoisotopic Mass229.062 Da
Topological Polar Surface Area135.000 Ų
Heavy Atom Count14
Formal Charge0
Complexity233.000
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. Jiang Tu, Suhui Xie, Qianyu Zhao, Jinping Guan, Chunhong Wu, Peng Wang.  (2022)  Reactive P/S/N-containing synergistic flame retardant towards eco-friendly durable flame-retardant cotton fabric: Flame-retardant property, durability and mechanism.  POLYMER TESTING,      [PMID:] [10.1016/j.polymertesting.2022.107918]
Solution Calculators
Reviews

Customer Reviews

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