C45H69O3P
689 g/mol
Industrial ChemicalWarning
Antioxidant TNP
CAS26523-78-4EC247-759-6
Category
Industrial Chemical
Compound Class
Other
Primary Use
antioxidant stabilizer for plastics
Antioxidant TNP is a phosphite-based stabilizer used as an antioxidant in the processing of plastic and rubber products. It helps prevent degradation during manufacturing and extends the service life of materials such as PVC, polyolefins, and rubber.
Stabilizer for PVC filmAntioxidant for polyolefins (LLDPE, HDPE)Stabilizer for rubber processing
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
ReferenceSame Category
Octhilinone
CAS26530-20-1
preservative in paints and metalworking fluids
ReferenceSame Category
4-methyl-1-phenylpyrazolidin-3-one
CAS2654-57-1
photographic developing agent
ReferenceSame Category
Diphenyl isodecyl phosphite
CAS26544-23-0
Plastic antioxidant and stabilizer
ReferenceSame Category
Dihydro-3-(tetrapropenyl)furan-2,5-dione
CAS26544-38-7
Crosslinking agent and binder
Referencesame scaffold
Tris(2,4-di-tert-butylphenyl)phosphite
CAS31570-04-4
antioxidant for plastics
Referencesame scaffold
Triphenyl phosphite
CAS101-02-0
Antioxidant and stabilizer for plastics
Safety Reference
Warning
H317May cause an allergic skin reaction
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H315Causes skin irritation
H318Causes serious eye damage
H361Suspected of damaging fertility or the unborn child
Regulatory Compliance1
- EU REACH SVHCEURegulation
Customs Tariff Classification
The international HS code for Antioxidant TNP (CAS 26523-78-4) is 2920.29.
HS code (international, 6-digit)
2920.29
EU CN code (8-digit)
2920 29 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
tris(4-nonylphenyl) phosphite
InChIKey
MGMXGCZJYUCMGY-UHFFFAOYSA-N
SMILES
CCCCCCCCCC1=CC=C(C=C1)OP(OC2=CC=C(C=C2)CCCCCCCCC)OC3=CC=C(C=C3)CCCCCCCCC
Synonyms (15)
- Antioxidant TNP
- DOVERPHOS 4
- Irgafos TNPP
- Naugard TNPP
- SUMILIZER TNP
- TRIS(NONYLPHENYL)PHOSPHITE
- Tris(p-nonylphenyl) phosphite
- Trisnonylphenylphosphit
- tris(4-nonylphenyl) phosphite
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