Tris(3-hydroxypropyl)phosphine(THPP) - ≥80% , CAS No.4706-17-6

CAS: 4706-17-6 Cat. No.: T282164 Molecular Weight: 208.24 EC Number: 803-871-2 PubChem CID: 11006655
AVAILABLE TO ORDER
GRADE & PURITY ≥80%
Synonyms
3,3',3''-Phosphinetriyltris(propan-1-ol) | Tris(hydroxypropyl)phosphine | THPP
Storage
Store at 2-8°C,Protected from light,Argon charged
Shipped In
Wet ice
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
1g
T282164-1g
8
$39.90
5g
T282164-5g
1
$139.90
25g
T282164-25g
2
$459.90
Enter a quantity for the sizes you want to add.
🧪

Why this grade

≥80% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Store at 2-8°C,Protected from light,Argon charged Ships Wet ice 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 3 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Tris(hydroxypropyl)phosphine (THPP) is a reducing agent widely used for the reductive cleavage of disulfide bonds in small molecules in both aqueous–organic media.

Application:

Tris(hydroxypropyl)phosphine can be used:
As a reducing agent in the reduction of dehydroascorbic acid to ascorbic acid
In the cleavage of disulfide bonds in small molecules
As a catalyst in the conversion of polysulfides  

Specifications

Synonyms
3, 3', 3''-Phosphinetriyltris(propan-1-ol) | Tris(hydroxypropyl)phosphine | THPP
Specifications & Purity
≥80%
Storage
Store at 2-8°C, Protected from light, Argon charged
Shipped In
Wet ice
This product requires cold chain shipping. Ground and other economy services are not available.
Purity
≥80%
Names and Identifiers
Pubchem Sid488197043
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488197043
Canonical SmilesC(CO)CP(CCCO)CCCO
IUPAC Name3-[bis(3-hydroxypropyl)phosphanyl]propan-1-ol
InChIKeyYICAEXQYKBMDNH-UHFFFAOYSA-N
INCHI1S/C9H21O3P/c10-4-1-7-13(8-2-5-11)9-3-6-12/h10-12H,1-9H2
Isomeric SMILES C(CO)CP(CCCO)CCCO
PubChem CID 11006655
Molecular Weight 208.24

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
SuperclassOrganophosphorus compounds
ClassOrganic phosphines and derivatives
SubclassNot available
Intermediate Tree Nodes Not available
Direct ParentOrganic phosphines and derivatives
Alternative Parents Primary alcohols  Organopnictogen compounds  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Phosphine - 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 organic phosphines and derivatives. These are organic compounds containing a phosphine derivative, with the general formula B1P(R2)R3 (R1-R3=alkyl, aryl).
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.

12 results found

Lot NumberCertificate TypeDateItem
F2622477Certificate of AnalysisJun 05, 2026 T282164
F2622479Certificate of AnalysisJun 05, 2026 T282164
F2622481Certificate of AnalysisJun 05, 2026 T282164
A2312310Certificate of AnalysisOct 13, 2025 T282164
A2312311Certificate of AnalysisOct 13, 2025 T282164
A2312357Certificate of AnalysisOct 13, 2025 T282164
I2511682Certificate of AnalysisMay 26, 2025 T282164
I2511684Certificate of AnalysisMay 26, 2025 T282164
I2511685Certificate of AnalysisMay 26, 2025 T282164
E2409446Certificate of AnalysisMar 01, 2024 T282164
E2409457Certificate of AnalysisMar 01, 2024 T282164
E2409487Certificate of AnalysisMar 01, 2024 T282164

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Chemical and Physical Properties
Sensitivityair sensitive,Moisture sensitive, light sensitive
Molecular Weight208.230 g/mol
XLogP3-1.000
Hydrogen Bond Donor Count3
Hydrogen Bond Acceptor Count3
Rotatable Bond Count9
Exact Mass208.123 Da
Monoisotopic Mass208.123 Da
Topological Polar Surface Area60.700 Ų
Heavy Atom Count13
Formal Charge0
Complexity81.800
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
Citations of This Product
References
1. Mengyue Li, Junfeng Wu, Na Li, Junjian Zhou, Wen Cheng, Anhua Wu, Lianqing Liu, Niandong Jiao.  (2024)  Cross-Scale Drug Delivery of Diatom Microrobots Based on A Magnetic Continuum Robot for Combined Chemical and Photodynamic Therapy of Glioblastoma.  ADVANCED FUNCTIONAL MATERIALS,      [PMID:] [10.1002/adfm.202402333]
2. Shen Xiaojing, Lv Hongying, Liu Shengnan, Yang Xiangshan, Xing Yilong, Cheng Ge, Li Juan, Zhang Rui.  (2025)  Porphyrin-based micro-nano assemblies combine with a well plate assay for capturing and molecular profiling of extracellular vesicles.  ANALYTICAL AND BIOANALYTICAL CHEMISTRY,      [PMID:41217455] [10.1007/s00216-025-06206-2]
3. Xing Yilong, Liu Shengnan, Yang Xiangshan, Li Juan, Zhang Rui.  (2026)  Porphyrin micro–nano assemblies for capture and isolation of extracellular vesicles.  MICROCHIMICA ACTA,  193  (1): (53).  [PMID:41483231] [10.1007/s00604-025-07729-2]
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