7-Nitro-9-oxo-9H-fluorene-4-carboxylic acid
7-硝基-9-氧代-4-芴羧酸
Also known as: 7-Nitro-9-oxo-4-fluorenecarboxylic acid, 7-Nitro-9-fluorenone-4-carboxylic acid, 2-Nitrofluorenone-5-carboxylic acid, 7-Nitro-9-oxo-fluoren-4-carbonsaeure, 7-Nitro-fluorenon-4-carbonsaeure, 7-nitro-9-fluorenone-4-carboxylicacid, 7-nitro-9-oxo-fluorene-4-carboxylic acid, 7-nitro-9-oxofluorene-4-carboxylic acid, 9H-Fluorene-4-carboxylic acid, 7-nitro-9-oxo-, MFCD00010784
7-Nitro-9-oxo-9H-fluorene-4-carboxylic acid (CAS 42523-38-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H7NO5 and a molecular weight of 269.20900 g/mol. It is also known as 7-Nitro-9-oxo-4-fluorenecarboxylic acid, 7-Nitro-9-fluorenone-4-carboxylic acid and 2-Nitrofluorenone-5-carboxylic acid. Key properties include a melting point of 269-270ºC(lit.), a boiling point of 561.6ºC at 760 mmHg, a density of 1.591g/cm3 and a flash point of 241.7ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 42523-38-6
- Jingsj CID
- J-43075-9
- Molecular Formula
- C14H7NO5
- Chinese Name
- 7-硝基-9-氧代-4-芴羧酸
- Molecular Weight
- 269.20900 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 269-270ºC(lit.) |
|---|---|
| Boiling Point | 561.6ºC at 760 mmHg |
| Density | 1.591g/cm3 |
| Flash Point | 241.7ºC |
| Exact Mass | 269.03200 |
| PSA | 100.19000 |
| LogP | 3.02760 |
| Refractive Index | 1.728 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2918300090 |
|---|---|
| Summary | 2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 7-Nitro-9-oxo-9H-fluorene-4-carboxylic acid?
The CAS number of 7-Nitro-9-oxo-9H-fluorene-4-carboxylic acid is 42523-38-6.
What are the molecular formula and molecular weight of 7-Nitro-9-oxo-9H-fluorene-4-carboxylic acid?
7-Nitro-9-oxo-9H-fluorene-4-carboxylic acid has molecular formula C14H7NO5 and molecular weight 269.20900 g/mol.
Is 7-Nitro-9-oxo-9H-fluorene-4-carboxylic acid hazardous?
7-Nitro-9-oxo-9H-fluorene-4-carboxylic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 7-Nitro-9-oxo-9H-fluorene-4-carboxylic acid?
For 7-Nitro-9-oxo-9H-fluorene-4-carboxylic acid, Upstream Products: 9-Oxo-9H-fluorene-4-carboxylic acid; Downstream Products: 1,2,3-Benzenetricarboxylic acid.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "7-Nitro-9-oxo-9H-fluorene-4-carboxylic acid (CAS 42523-38-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-43075-9 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.