Tris(nonylphenyl) phosphite , CAS No.26523-78-4

CAS: 26523-78-4 Cat. No.: T486960 Molecular Weight: 689.00 EC Number: 247-759-6 PubChem CID: 85595
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Synonyms
Irgastab CH 55 | SCHEMBL39062 | tris(2-nonylphenyl) phosphite | Etacillina | Phenol, nonyl-, phosphite(3:1) | Tris(nonylphenyl)phosphite | WGKLOLBTFWFKOD-UHFFFAOYSA-N | Tris[o-nonylphenyl] phosphite | UNII-7KV2DH7E7A | Alkanox TNPP | Chlorambon | Clindess
Storage
Room temperature
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Size
Status
Price
Qty
250ml
T486960-250ml
2
$79.90
500ml
T486960-500ml
2
$111.90
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Why this grade

for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

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

Overview

Tris(nonylphenyl) phosphite (TNPP) is an antioxidant that is majorly used as a stabilizer to improve the performance of polyethylene by decomposing the hydroperoxides. It can also be used to enhance the thermal stability by extending the polymeric chains.TNPP in combination with irganox is used to protect polyamide 6 (PA6) from oxidative degradation during the preparation of flame retardant nanocomposites. TNPP can be used as a stabilizer that prevents the molecular weight reduction and increases the tensile strength of the composite. It can also be used as a chain extender to improve the polymeric viscosity during the melt-blending of poly(hydroxybutyrate-co-hydroxyvalerate) based clay nanocomposites which find potential application as packaging materials.

Specifications

Synonyms
Irgastab CH 55 | SCHEMBL39062 | tris(2-nonylphenyl) phosphite | Etacillina | Phenol, nonyl-, phosphite(3:1) | Tris(nonylphenyl)phosphite | WGKLOLBTFWFKOD-UHFFFAOYSA-N | Tris[o-nonylphenyl] phosphite | UNII-7KV2DH7E7A | Alkanox TNPP | Chlorambon | Clindess
Storage
Room temperature
Names and Identifiers
Canonical SmilesCCCCCCCCCC1=CC=CC=C1OP(OC2=CC=CC=C2CCCCCCCCC)OC3=CC=CC=C3CCCCCCCCC
IUPAC Nametris(2-nonylphenyl) phosphite
InChIKeyWGKLOLBTFWFKOD-UHFFFAOYSA-N
INCHI1S/C45H69O3P/c1-4-7-10-13-16-19-22-31-40-34-25-28-37-43(40)46-49(47-44-38-29-26-35-41(44)32-23-20-17-14-11-8-5-2)48-45-39-30-27-36-42(45)33-24-21-18-15-12-9-6-3/h25-30,34-39H,4-24,31-33H2,1-3H3
Isomeric SMILES CCCCCCCCCC1=CC=CC=C1OP(OC2=CC=CC=C2CCCCCCCCC)OC3=CC=CC=C3CCCCCCCCC
PubChem CID 85595
UN Number 3082
Molecular Weight 689.00

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

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✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassPhenoxy compounds
Intermediate Tree Nodes Not available
Direct ParentPhenoxy compounds
Alternative Parents Organic phosphites  Organooxygen compounds  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Phenoxy compound - Organic phosphite - Organic oxygen compound - Hydrocarbon derivative - Organooxygen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as phenoxy compounds. These are aromatic compounds contaning a phenoxy group.
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.

6 results found

Lot NumberCertificate TypeDateItem
C2519378Certificate of AnalysisOct 20, 2023 T486960
E2516072Certificate of AnalysisOct 20, 2023 T486960
J2330637Certificate of AnalysisOct 20, 2023 T486960
J2330638Certificate of AnalysisOct 20, 2023 T486960
J2330639Certificate of AnalysisOct 20, 2023 T486960
L2515082Certificate of AnalysisOct 20, 2023 T486960
Chemical and Physical Properties
Refractive Indexn20/D 1.528 (lit.)
Flash Point(°F)404.6 °F - closed cup
Flash Point(°C)207 °C - closed cup
Boil Point(°C)>360℃ (lit.)
Molecular Weight689.000 g/mol
XLogP319.300
Hydrogen Bond Donor Count0
Hydrogen Bond Acceptor Count3
Rotatable Bond Count30
Exact Mass688.498 Da
Monoisotopic Mass688.498 Da
Topological Polar Surface Area27.700 Ų
Heavy Atom Count49
Formal Charge0
Complexity637.000
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. Benke Li, Wei You, Li Peng, Xianbo Huang, Wei Yu.  (2023)  Revealing the Shear Effect on the Interfacial Layer in Polymer Nanocomposites through Nanofiber Reorientation.  MACROMOLECULES,      [PMID:] [10.1021/acs.macromol.2c02121]
Solution Calculators
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