Is CAS 27193-86-8 the correct identity for Dodecylphenol?

Yes. CAS 27193-86-8 identifies Dodecylphenol. CAS 27193-28-8 identifies tetramethylbutylphenol, commonly associated with tert-Octylphenol, and must not appear on a PDDP order or shipping document.

What is Para-Dodecylphenol used for?

Para-Dodecylphenol is mainly used as an intermediate for lubricant additives, antioxidants, surfactants, fuel and polymer additives, and phenolic-resin derivatives. It can also be used in selected epoxy systems to improve leveling and accelerate cure.

Does the Dodecylphenol CAS number guarantee one pure para isomer?

No. Commercial Dodecylphenol can contain an alkyl-chain and positional-isomer distribution. If the process requires Para-Dodecylphenol, specify the para-substitution basis, dodecylphenol content, alkyl distribution and analytical method instead of relying on the CAS number alone.

What should a PDDP purchase specification include?

Define dodecylphenol content, para-isomer requirement, hydroxyl value or equivalent assay, free phenol, color, water and physical form. Also confirm destination regulatory acceptance for alkylphenols. Para-Dodecylphenol carries a C12 alkyl group and has different performance from shorter-chain alkylphenols.

How should Para-Dodecylphenol be stored and handled?

Para-Dodecylphenol is normally a transparent to viscous oily liquid and is generally stored at room temperature in a tightly closed container. Protect it from contamination and prolonged exposure to air, and use suitable personal protection and spill-control measures.

Para-Dodecylphenol (PDDP) CAS 27193-86-8

Para-Dodecylphenol (PDDP), CAS 27193-86-8, is also known as p-dodecylphenol. It is a commercial dodecyl-substituted phenol used as a reactive intermediate for phenolic resins, lubricant-additive chemistry and related alkylphenol derivatives. The CAS number identifies dodecylphenol rather than a fixed pure isomer, so define dodecylphenol content, para substitution, alkyl-chain distribution, free phenol, colour and water for the intended process.

CAS: 27193-86-8
Synonyms: Para-dodecylphenol, p-Dodecylphenol, Dodecylphenol, Alkylphenol C12, Dodecyl substituted phenol
Molecular Formula: C₁₈H₃₀O
Grade: Dodecylphenol content, para substitution, color and free phenol to the agreed specification
Package: Confirm packaging for the offered form and destination requirements.

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Product Description

Dodecylphenol properties: a mixture of various isomers, prepared by alkylation of phenol with tetrapropylene (isododecene) catalyzed by a cation-exchange resin or activated clay. It is a raw material for lubricating-oil antioxidants and additives, and is also used in organic synthesis. Long-chain alkylphenols are widely used in detergents, fuel-oil additives, lubricants and polymers, and are among the raw materials for phenolic resins.

Application: used in epoxy crystal adhesives to improve surface leveling and accelerate curing; recommended addition level 0.5-10%.

Packing: 200kg iron drum or 50kg plastic drum packaging.

Density	0.9±0.1 g/cm³
Boiling point	362.6±11.0 °C at 760 mmHg
Molecular formula	C₁₈H₃₀O
Molecular weight	262.43 g/mol
Flash point	190.9±8.7 °C
Exact mass	262.2297
Polar surface area	20.23 Å²
LogP	7.24
Appearance	Transparent viscous oil
Vapor pressure	0.0±0.8 mmHg (25 °C)
Refractive index	1.497
Storage conditions	Room temperature

FAQ - Technical & Supply Chain

Q:
Is CAS 27193-86-8 the correct identity for Dodecylphenol?

A: Yes. CAS 27193-86-8 identifies Dodecylphenol. CAS 27193-28-8 identifies tetramethylbutylphenol, commonly associated with tert-Octylphenol, and must not appear on a PDDP order or shipping document.
Q:
What is Para-Dodecylphenol used for?

A: Para-Dodecylphenol is mainly used as an intermediate for lubricant additives, antioxidants, surfactants, fuel and polymer additives, and phenolic-resin derivatives. It can also be used in selected epoxy systems to improve leveling and accelerate cure.
Q:
Does the Dodecylphenol CAS number guarantee one pure para isomer?

A: No. Commercial Dodecylphenol can contain an alkyl-chain and positional-isomer distribution. If the process requires Para-Dodecylphenol, specify the para-substitution basis, dodecylphenol content, alkyl distribution and analytical method instead of relying on the CAS number alone.
Q:
What should a PDDP purchase specification include?

A: Define dodecylphenol content, para-isomer requirement, hydroxyl value or equivalent assay, free phenol, color, water and physical form. Also confirm destination regulatory acceptance for alkylphenols. Para-Dodecylphenol carries a C12 alkyl group and has different performance from shorter-chain alkylphenols.
Q:
How should Para-Dodecylphenol be stored and handled?

A: Para-Dodecylphenol is normally a transparent to viscous oily liquid and is generally stored at room temperature in a tightly closed container. Protect it from contamination and prolonged exposure to air, and use suitable personal protection and spill-control measures.

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