Guajen
Also known as: 2,3-DIMETHYLNAPHTHALENE, 2,3-DIMETHYLNAPHTHALENE 98+%, 2,3-Dimethylnaphthalene, 2,3-Dimethylnaphthalene,95%, 2,3-Dimethylnaphthalene,97%, 2,3-Dimethylnaphthaline, 2,3-dimethylnaphthalene, DimethylNaphthalein, EINECS 209-463-5, MFCD00004119, Naphthalene, 2,3-dimethyl-, naphthalene,2,3-dimethyl-
Guajen (CAS 581-40-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C12H12 and a molecular weight of 156.224 g/mol. Key properties include a melting point of 103-104 °C(lit.), a boiling point of 268.9±10.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 114.0±9.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 581-40-8
- Jingsj CID
- J-19920-2
- Molecular Formula
- C12H12
- Molecular Weight
- 156.224 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 103-104 °C(lit.) |
|---|---|
| Boiling Point | 268.9±10.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 114.0±9.7 °C |
| Exact Mass | 156.093903 |
| LogP | 4.37 |
| Vapor Pressure | 0.0±0.3 mmHg at 25°C |
| Refractive Index | 1.605 |
Customs & Trade Information
| HS Code | 2902909090 |
|---|---|
| Summary | 2902909090 other aromatic hydrocarbons。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:2.0%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Guajen?
The CAS number of Guajen is 581-40-8.
What are the molecular formula and molecular weight of Guajen?
Guajen has molecular formula C12H12 and molecular weight 156.224 g/mol.
What are the upstream and downstream products of Guajen?
For Guajen, Upstream Products: benzene, Methanol; Downstream Products: Tetracene, 2,3-Butanedione.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Guajen (CAS 581-40-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19920-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.