2-Isopropylnaphthalene (2-IPN)
CAS2027-17-0
2-Isopropylnaphthalene (2-IPN, CAS 2027-17-0) is a β-alkylated naphthalene (C13H14, MW 170.25) used as an intermediate in naphthalene chemistry. It is oxidized to its hydroperoxide and cleaved to 2-naphthol and acetone, and it is a step toward 2,6-diisopropylnaphthalene, a precursor of the PEN monomer 2,6-naphthalenedicarboxylic acid. KingPharm supplies 2-IPN for R&D and production with a batch-specific certificate of analysis.
- CAS No.
- 2027-17-0
- Formula
- C13H14
- Mol. weight
- 170.25 g/mol
- Appearance
- Colorless to Light-yellow Liquid
Product Description
2-Isopropylnaphthalene is naphthalene carrying an isopropyl group at the 2 (β) position. It is a colorless liquid near room temperature, with a reported melting point of about 14 °C, and is typically made by isopropylation of naphthalene with propylene or isopropanol over acid catalysts.
Its value lies in the tertiary benzylic C–H of the isopropyl group. Liquid-phase air oxidation converts 2-IPN to 2-isopropylnaphthalene hydroperoxide, which is acid-decomposed into 2-naphthol and acetone, in the same way that cumene gives phenol. Further isopropylation at the other β position gives 2,6-diisopropylnaphthalene, which is oxidized to 2,6-naphthalenedicarboxylic acid.
The hydroperoxide route gives 2-naphthol without the sulfonation and caustic fusion steps of the classical process, and it co-produces acetone. Starting from the β-isomer rather than mixed isopropylnaphthalenes helps direct the second alkylation toward the 2,6-substitution pattern.
For procurement, check the GC assay together with the content of 1-isopropylnaphthalene, residual naphthalene and di- or polyisopropylnaphthalenes, since these isomers and homologs carry through oxidation and alkylation steps. Because the melting point is close to room temperature, the material may solidify in cool storage.
Chemical Specifications
Identifiers
| CAS number | 2027-17-0 |
|---|---|
| Product name | 2-Isopropylnaphthalene |
| Chinese name | 2-异丙基萘 |
| IUPAC name | 2-propan-2-ylnaphthalene |
| Synonyms | 2-ISOPROPYLNAPHTHALENE |
| Chinese synonyms | 2-异丙基萘; 異丙基奈 PACKING:170 KG; 2-异丙基萘,TECH.; 2-异丙基萘,96% |
| Molecular formula | C13H14 |
| Molecular weight | 170.25 g/mol |
| EC number | 217-976-0 |
| MDL number | MFCD00014322 |
| PubChem CID | 16238 |
| InChIKey | TVYVQNHYIHAJTD-UHFFFAOYSA-N |
| SMILES | CC(C)C1=CC2=CC=CC=C2C=C1 |
Physical and chemical properties
| Appearance | Colorless to Light-yellow Liquid |
|---|
Applications
2-IPN is used mainly as an intermediate in naphthalene-based chemical routes.
2-Naphthol via hydroperoxide route
Oxidized to 2-isopropylnaphthalene hydroperoxide and acid-cleaved to 2-naphthol with acetone as co-product.
2,6-Diisopropylnaphthalene synthesis
Further isopropylated to 2,6-diisopropylnaphthalene, the precursor of 2,6-naphthalenedicarboxylic acid for PEN polyester.
Shape-selective alkylation studies
Used as a substrate and GC reference in zeolite-catalyzed naphthalene isopropylation studies on β-selectivity.
Building block for 2-substituted naphthalenes
Serves as a starting material for other 2-substituted naphthalene derivatives in organic synthesis.
Quality Documentation
The following documents can be provided for 2-Isopropylnaphthalene (2-IPN) to support technical evaluation and purchasing. Documents are issued for the specific grade and batch supplied.
-
Certificate of Analysis (COA) Batch-specific test results against the specification.
-
Product specification The release specification with test items, limits and methods.
Packaging, Storage & Transport
| Available pack sizes | 5 kg, 1 kg, 500 g, 100 g, 25 g |
|---|
Read the current safety data sheet before handling. Packaging can be adapted to the order quantity and destination.
Frequently Asked Questions
How does 2-isopropylnaphthalene differ from 1-isopropylnaphthalene?
The 2-isomer carries the isopropyl group at the β position, which the 2-naphthol and 2,6-diisopropylnaphthalene routes require; the 1-isomer leads to off-target α-products, so its content should be limited in the specification.
How should 2-IPN be stored and handled?
Keep the container tightly closed in a cool, dry, ventilated place away from oxidizers. With a melting point near 14 °C it may solidify when cold; warm gently and mix until homogeneous before sampling.
Which documents are provided?
Each batch comes with a certificate of analysis, and the specification is available on request; KingPharm can provide an SDS as well.
What is the CAS number of 2-Isopropylnaphthalene (2-IPN)?
The CAS Registry Number of 2-Isopropylnaphthalene (2-IPN) is 2027-17-0. 2-Isopropylnaphthalene (2-IPN) is also known as 2-ISOPROPYLNAPHTHALENE.
What is the molecular formula and molecular weight of 2-Isopropylnaphthalene (2-IPN)?
The molecular formula of 2-Isopropylnaphthalene (2-IPN) is C13H14, and its molecular weight is 170.25 g/mol.
What is 2-Isopropylnaphthalene (2-IPN) used for?
2-IPN is used mainly as an intermediate in naphthalene-based chemical routes.
How can I request a quotation for 2-Isopropylnaphthalene (2-IPN)?
Send an inquiry for 2-Isopropylnaphthalene (2-IPN) (CAS 2027-17-0) with the required quantity, target specification, destination country and any documentation requirements. KingPharm will confirm availability, packaging, lead time and price.
Request a Quote for 2-Isopropylnaphthalene (2-IPN)
Tell us the required quantity, target specification, destination country and any documentation requirements. We will confirm availability, packaging, lead time and price.
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