![Molecular structure of Naphtho[7,8,1,2,3-nopqr]tetraphene (CAS 191-26-4)](/images/chem_structures_svg/495/191-26-4.svg)
Naphtho[7,8,1,2,3-nopqr]tetraphene
Also known as: ANTHANTHRENE, Anthanthren, Anthanthrene, Anthranthrene, Antranthrene, DIBENZO(DEF,MNO)CHRYSENE, Dibenz[def,mno]chrysene, Dibenzo[cd,jk]pyrene, Dibenzo[def,mno]chrysene, anthanthrene(purity), anthantrene, dibenzo(cd,jk)pyrene
Naphtho[7,8,1,2,3-nopqr]tetraphene (CAS 191-26-4) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C22H12 and a molecular weight of 276.331 g/mol. Key properties include a melting point of 261ºC, a boiling point of 497.1±12.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 247.2±13.7 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 191-26-4
- Jingsj CID
- J-36759-0
- Molecular Formula
- C22H12
- Molecular Weight
- 276.331 g/mol
- Category
- Aromatic Hydrocarbons
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 261ºC |
|---|---|
| Boiling Point | 497.1±12.0 °C at 760 mmHg |
| Density | 1.4±0.1 g/cm3 |
| Flash Point | 247.2±13.7 °C |
| Exact Mass | 276.093903 |
| LogP | 6.89 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 2.009 |
GHS Safety & Compliance
- H315 — Causes skin irritation
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 Naphtho[7,8,1,2,3-nopqr]tetraphene?
The CAS number of Naphtho[7,8,1,2,3-nopqr]tetraphene is 191-26-4.
What are the molecular formula and molecular weight of Naphtho[7,8,1,2,3-nopqr]tetraphene?
Naphtho[7,8,1,2,3-nopqr]tetraphene has molecular formula C22H12 and molecular weight 276.331 g/mol.
Is Naphtho[7,8,1,2,3-nopqr]tetraphene hazardous?
Naphtho[7,8,1,2,3-nopqr]tetraphene has GHS signal word Warning and hazard statements H315 — Causes skin irritation.
What are the upstream and downstream products of Naphtho[7,8,1,2,3-nopqr]tetraphene?
For Naphtho[7,8,1,2,3-nopqr]tetraphene, Upstream Products: dibenzo[def,mno]chrysene-6,12-dione; Downstream Products: dibenzo[def,mno]chrysene-6,12-dione.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Naphtho[7,8,1,2,3-nopqr]tetraphene (CAS 191-26-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36759-0 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.