N-[Tris(hydroxymethyl)methyl]-3-amino-2-hydroxypropanesulfonic acid - ≥99% , CAS No.68399-81-5

CAS: 68399-81-5 Cat. No.: T113029 Molecular Weight: 259.28 Beilstein Registry Number: 2113949 EC Number: 269-993-8 PubChem CID: 109334
AVAILABLE TO ORDER
GRADE & PURITY ≥99%
Synonyms
TAPSO | 3-[N-Tris-(hydroxymethyl)methylamino]-2-hydroxypropanesulphonic acid | 3-((1,3-Dihydroxy-2-(hydroxymethyl)propan-2-yl)amino)-2-hydroxypropane-1-sulfonic acid | N-[Tris(hydroxymethyl)methyl]-3-amino-2-hydroxypropanesulfonic acid | (+/-)-N-(TRIS(HYD
Storage
Room temperature,Desiccated,Cool
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25g
T113029-25g
2
$12.90
100g
T113029-100g
1
$44.90
500g
T113029-500g
1
$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,Desiccated,Cool 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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

A biological buffer (zwitterionic) typically referred to as Good’s buffer useful in cell culture media formulations. Biological buffer - useful range 7.0-8.2.

Specifications

Synonyms
TAPSO | 3-[N-Tris-(hydroxymethyl)methylamino]-2-hydroxypropanesulphonic acid | 3-((1, 3-Dihydroxy-2-(hydroxymethyl)propan-2-yl)amino)-2-hydroxypropane-1-sulfonic acid | N-[Tris(hydroxymethyl)methyl]-3-amino-2-hydroxypropanesulfonic acid | (+/-)-N-(TRIS(HYD
Specifications & Purity
≥99%
Storage
Room temperature, Desiccated, Cool
Shipped In
Normal
Purity
≥99%
Names and Identifiers
Canonical SmilesC(C(CS(=O)(=O)O)O)NC(CO)(CO)CO
IUPAC Name3-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]-2-hydroxypropane-1-sulfonic acid
InChIKeyRZQXOGQSPBYUKH-UHFFFAOYSA-N
INCHI1S/C7H17NO7S/c9-3-7(4-10,5-11)8-1-6(12)2-16(13,14)15/h6,8-12H,1-5H2,(H,13,14,15)
Isomeric SMILES C(C(CS(=O)(=O)O)O)NC(CO)(CO)CO
WGK Germany 3
PubChem CID 109334
Molecular Weight 259.28
Beilstein 2113949
Reaxy-Rn 2113949

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.

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🔬 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  Secondary alcohols  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 alcohol - Secondary amine - Secondary aliphatic amine - Organopnictogen compound - Organic oxygen compound - Organic nitrogen compound - Alcohol - Primary alcohol - Organosulfur compound - Organooxygen compound - Organonitrogen compound - Amine - Hydrocarbon derivative - Organic oxide - 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 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.

10 results found

Lot NumberCertificate TypeDateItem
G2215574Certificate of AnalysisApr 07, 2026 T113029
G2215575Certificate of AnalysisApr 07, 2026 T113029
G2215576Certificate of AnalysisApr 07, 2026 T113029
D2621417Certificate of AnalysisMar 11, 2026 T113029
D2621533Certificate of AnalysisMar 11, 2026 T113029
A2607067Certificate of AnalysisJan 13, 2026 T113029
L2102108Certificate of AnalysisSep 09, 2025 T113029
E2108239Certificate of AnalysisFeb 07, 2025 T113029
J2515059Certificate of AnalysisJun 02, 2022 T113029
L2419278Certificate of AnalysisJun 02, 2022 T113029
Chemical and Physical Properties
SolubilitySolubility in Water almost transparency
Molecular Weight259.279 g/mol
XLogP3-6.400
Hydrogen Bond Donor Count6
Hydrogen Bond Acceptor Count8
Rotatable Bond Count8
Exact Mass259.073 Da
Monoisotopic Mass259.073 Da
Topological Polar Surface Area156.000 Ų
Heavy Atom Count16
Formal Charge0
Complexity273.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count1
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Documents & Articles
Solution Calculators
Reviews

Customer Reviews

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