Hexylphosphonic Acid - ≥98%(T) , CAS No.4721-24-8

CAS: 4721-24-8 Cat. No.: H157410 Formula: C6H15O3P Molecular Weight: 166.16 EC Number: 811-094-5
AVAILABLE TO ORDER
GRADE & PURITY ≥98%(T)
Synonyms
AS-57736 | DTXSID50963772 | NSC222656 | NSC-222656 | Hexylphosphonic acid, 95% | FT-0635409 | MFCD00013961 | N-HEXYLPHOSPHONICACID | n-Hexylphosphonic acid | SCHEMBL121170 | Alkyl Phosphonic Acid C6 | H1551 | SY048258 | T72503 | hexylphosphonic acid | F00
Storage
Room temperature
Shipped In
Normal
★
Size
USA
Germany (EU)*
Price
Qty
1g
H157410-1g
3 In stock
—
$9.90
5g
H157410-5g
3 In stock
—

$11.90

$13.90
Save $2.00 (14.39%)
25g
H157410-25g
1 In stock
—
$29.90
100g
H157410-100g
2 In stock
—
$109.90
Enter a quantity for the sizes you want to add.
🧪
Why this grade

≥98%(T) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

🌡

Storage & shipping

Room temperature 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 6 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Hexylphosphonic acid(HPA) is a phosphonic acid derivative that can be used as a capping agent and a surfactant

Specifications

Synonyms
AS-57736 | DTXSID50963772 | NSC222656 | NSC-222656 | Hexylphosphonic acid, 95% | FT-0635409 | MFCD00013961 | N-HEXYLPHOSPHONICACID | n-Hexylphosphonic acid | SCHEMBL121170 | Alkyl Phosphonic Acid C6 | H1551 | SY048258 | T72503 | hexylphosphonic acid | F00
Specifications & Purity
≥98%(T)
Storage
Room temperature
Shipped In
Normal
Purity
≥98%(T)
Names and Identifiers
Pubchem Sid
Pubchem Sid Url
https://pubchem.ncbi.nlm.nih.gov/substance/488189433
Canonical Smiles
CCCCCCP(=O)(O)O
IUPAC Name
hexylphosphonic acid
InChIKey
GJWAEWLHSDGBGG-UHFFFAOYSA-N
INCHI
1S/C6H15O3P/c1-2-3-4-5-6-10(7,8)9/h2-6H2,1H3,(H2,7,8,9)
Isomeric SMILES
CCCCCCP(=O)(O)O
Molecular Weight
166.16
Reaxy-Rn
1756554
Reaxys-RN_link_address
https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1756554&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 acids and derivatives
ClassOrganic phosphonic acids and derivatives
SubclassOrganic phosphonic acids
Intermediate Tree Nodes Not available
Direct ParentOrganic phosphonic acids
Alternative Parents Organopnictogen compounds  Organophosphorus compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAliphatic acyclic compounds
Substituents Organophosphonic acid - Organic oxygen compound - Organopnictogen compound - Organic oxide - Hydrocarbon derivative - Organophosphorus compound - Aliphatic acyclic compound
DescriptionThis compound belongs to the class of organic compounds known as organic phosphonic acids. These are organic compounds containing phosphonic acid.
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.

17 results found

Lot NumberCertificate TypeDateItem
J2219730Certificate of AnalysisJul 30, 2026 H157410
J2219548Certificate of AnalysisJul 30, 2026 H157410
J2219543Certificate of AnalysisJul 30, 2026 H157410
G2601635Certificate of AnalysisJun 22, 2026 H157410
G2601634Certificate of AnalysisJun 22, 2026 H157410
G2601633Certificate of AnalysisJun 22, 2026 H157410
A2621517Certificate of AnalysisJan 08, 2026 H157410
A2621520Certificate of AnalysisJan 08, 2026 H157410
A2621519Certificate of AnalysisJan 08, 2026 H157410
A2621518Certificate of AnalysisJan 08, 2026 H157410
J2109337Certificate of AnalysisJul 10, 2025 H157410
H2422285Certificate of AnalysisAug 01, 2024 H157410
H2422286Certificate of AnalysisAug 01, 2024 H157410
F2404025Certificate of AnalysisOct 09, 2022 H157410
D2419024Certificate of AnalysisOct 09, 2022 H157410
H2330037Certificate of AnalysisOct 09, 2022 H157410
J2219541Certificate of AnalysisOct 09, 2022 H157410
Chemical and Physical Properties
SolubilityInsoluble in water.
Melt Point(°C)105-106°C
Molecular Weight166.160 g/mol
XLogP30.700
Hydrogen Bond Donor Count2
Hydrogen Bond Acceptor Count3
Rotatable Bond Count5
Exact Mass166.076 Da
Monoisotopic Mass166.076 Da
Topological Polar Surface Area57.500 Ų
Heavy Atom Count10
Formal Charge0
Complexity118.000
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
Solution Calculators
Reviews

Customer Reviews

Frequently Asked Questions

How should this product be stored?
Store in a cool place.
How is this product shipped?
This product ships under standard ambient conditions. No temperature-controlled packaging is required.
What are the CAS number, molecular formula and molecular weight?
The CAS Number is 4721-24-8, the molecular formula is C6H15O3P, and the molecular weight is 166.16 g/mol. InChIKey GJWAEWLHSDGBGG-UHFFFAOYSA-N.
What documentation is provided?
Available product documentation, including Certificates of Analysis (COA), Safety Data Sheets (SDS), and specification sheets, is shown in the product document area. Document availability and access follow the current site policy.

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