BIS-TRIS propane - Ultra pure, ≥98%(T), non-zwitterionic buffer useful in pH range 6.3-9.5 , CAS No.64431-96-5

CAS: 64431-96-5 Cat. No.: B755526 Molecular Weight: 282.33 Beilstein Registry Number: 1786109 EC Number: 264-899-3
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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. ≥98%(T) non-zwitterionic buffer useful in pH range 6.3-9.5
Storage
Room temperature,Argon charged
Shipped In
Normal
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Status
Price
Qty
25g
B755526-25g
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$199.90
100g
B755526-100g
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$511.90
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Why this grade

Ultra pure, ≥98%(T), non-zwitterionic buffer useful in pH range 6.3-9.5 Ultra pure for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature,Argon charged 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 5 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Bis-Tris propane buffer, also known as BTP, is a zwitterionic biochemical buffer used for pH adjustment in various laboratory applications, particularly molecular biology, biochemistry, and electrophoresis. Its wide buffering range, from pH 6.3 to 9.5, is attributed to its close pKa values ​​of 6.8 (pKa1) and 9.0 (pKa2). This broad buffering range allows it to maintain stable pH conditions in a variety of experiments.
Furthermore, Bis-Tris propane is a water-soluble buffer that plays a crucial role in improving the stability and activity of restriction enzymes. Specifically, its buffering capacity is advantageous for experiments requiring pH levels as low as 6-7. Tris buffers are insufficient at pH below 7.5 and exhibit significant pKa fluctuations with temperature changes; Bis-Tris propane is a better alternative in this regard. Additionally, it can be used in conjunction with hydrochloric acid buffer to stabilize farnesyl diphosphate, particularly during its isolation from Saccharomyces cerevisiae. In particular, it can act as a ligand and form binuclear hydroxyl complexes with lanthanide (III) rare earth elements.

Application:


  • Comparing solution-gate and bottom-gate nanowire field-effect transistors on pH sensing with different salt concentrations and surface modifications.: BIS-TRIS propane is used as a buffering agent in the development of nanowire field-effect transistors for pH sensing. The research demonstrates its effectiveness in enhancing the sensitivity and stability of these biosensors under varying conditions (Hu et al., 2024).

  • Laser-induced tuning of graphene field-effect transistors for pH sensing.: This study employs BIS-TRIS propane as a buffering solution to optimize the performance of graphene field-effect transistors in pH sensing applications. The findings highlight the role of BIS-TRIS propane in achieving precise tuning of sensor responses (Lampinen et al., 2023).

  • Elucidating the exchange interactions in a {Gd(III)Cu(II)(4)} propellor.: BIS-TRIS propane is utilized as a buffer in the investigation of exchange interactions in complex metal assemblies. The study provides insights into the magnetic properties and potential applications in materials science (Heras Ojea et al., 2023).

  • Protein association on multimodal chromatography media.: This research explores the use of BIS-TRIS propane in multimodal chromatography to study protein interactions. The buffer′s compatibility with various chromatographic techniques enhances the understanding of protein behavior and purification processes (Muca & Antos, 2023).


Specifications

Specifications & Purity
Ultra pure, ≥98%(T), non-zwitterionic buffer useful in pH range 6.3-9.5
Storage
Room temperature, Argon charged
Shipped In
Normal
Grade
Ultra pure
Purity
≥98%(T)
Names and Identifiers
Canonical SmilesC(CNC(CO)(CO)CO)CNC(CO)(CO)CO
IUPAC Name2-[3-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]propylamino]-2-(hydroxymethyl)propane-1,3-diol
InChIKeyHHKZCCWKTZRCCL-UHFFFAOYSA-N
INCHI1S/C11H26N2O6/c14-4-10(5-15,6-16)12-2-1-3-13-11(7-17,8-18)9-19/h12-19H,1-9H2
Isomeric SMILES C(CNC(CO)(CO)CO)CNC(CO)(CO)CO
WGK Germany 3
Molecular Weight 282.33
Beilstein 1786109
Reaxy-Rn 1786109
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1786109&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
SubclassAmines
Intermediate Tree Nodes Alkanolamines
Direct Parent1,2-aminoalcohols
Alternative Parents Dialkylamines  Primary alcohols  Organopnictogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents 1,2-aminoalcohol - Secondary amine - Secondary aliphatic amine - Organic oxygen compound - Organopnictogen compound - Hydrocarbon derivative - Primary alcohol - Organooxygen compound - Alcohol - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as 1,2-aminoalcohols. These are organic compounds containing an alkyl chain with an amine group bound to the C1 atom and an alcohol group bound to the C2 atom.
External Descriptors hexol
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.

4 results found

Lot NumberCertificate TypeDateItem
B2627414Certificate of AnalysisJan 23, 2026 B755526
B2627415Certificate of AnalysisJan 23, 2026 B755526
H2521133Certificate of AnalysisAug 27, 2025 B755526
H2521132Certificate of AnalysisAug 26, 2025 B755526
Chemical and Physical Properties
Solubilitywater: 1 M
SensitivityMoisture sensitive
Melt Point(°C)164-165°C
Molecular Weight282.330 g/mol
XLogP3-4.600
Hydrogen Bond Donor Count8
Hydrogen Bond Acceptor Count8
Rotatable Bond Count12
Exact Mass282.179 Da
Monoisotopic Mass282.179 Da
Topological Polar Surface Area145.000 Ų
Heavy Atom Count19
Formal Charge0
Complexity183.000
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. Jie Gu, Shuyun Zheng, Xiaolong Lu, Hao Zhang, Kai Ren, Ziqiang Liu, Chao Liu, Chunrui Wu.  (2024)  A new strategy for solving hydrophobic membrane wetting: membrane structure design for membrane pore drying by spontaneous dehydration.  JOURNAL OF MEMBRANE SCIENCE,      [PMID:] [10.1016/j.memsci.2024.123664]
2. Jiandong Shen, Bijiang Zhong, Wenshui Xia, Yanshun Xu.  (2024)  Action of structural proteins in textural deterioration of grass carp (Ctenopharyngodon idellus) fillets during refrigerated storage.  INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY,  59  (4): (2659-2666).  [PMID:] [10.1111/ijfs.17010]
3. Seokjoon Kim, Seungjin Lee, Seokhwan Kim, Jiye Shin, Byung Seok Cha, Eun Sung Lee, Ki Soo Park.  (2024)  Colorimetric detection of arsenite using Tris-mediated gold nanoparticle aggregation and chitosan lateral flow strip-based signal enhancement.  SENSORS AND ACTUATORS B-CHEMICAL,      [PMID:] [10.1016/j.snb.2024.135469]
4. Bao-Di Ma, Jia-Yi Li, Jian-He Xu, Tao Yu, Xu-Dong Kong.  (2025)  ADP-ribose is a competitive inhibitor of methanol dehydrogenases from Bacillus methanolicus.  JOURNAL OF BIOLOGICAL CHEMISTRY,      [PMID:40818608] [10.1016/j.jbc.2025.110599]
5. Yu Han, Yuelin Luo, Bao-Di Ma, Jie Li, Jian-He Xu, Xu-Dong Kong.  (2024)  Structural Insights of a cis-Epoxysuccinate Hydrolase Facilitate the Development of Robust Biocatalysts for the Production of l-(+)-Tartrate.  BIOCHEMISTRY,      [PMID:38803051] [10.1021/acs.biochem.4c00141]
Solution Calculators
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