Coumarin 7
Also known as: 3-(2-Benzimidazolyl)-7-(diethylamino)coumarin, 3-(2-Benzimidazolyl)-7-(diethylamino)-2H-1-benzopyran-2-one, 3-(1H-Benzimidazol-2-yl)-7-(diethylamino)-2H-1-benzopyran-2-one, Disperse Yellow 82, Disperse Yellow 28, Solvent Yellow 185, Solvent Yellow 10G, Fluorescent Yellow GL, Disperse Fluorescent Yellow 8GFF, C.I. Disperse Yellow 82, C.I. Solvent Yellow 185, Oraset Yellow 8GF, Yellow 8GF, Yellow S-8GFL, K 7
Coumarin 7 (CAS 27425-55-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H19N3O2 and a molecular weight of 333.38400 g/mol. Key properties include a melting point of 234-237 °C(lit.), a boiling point of 602.3ºC at 760 mmHg, a density of 1.302 g/cm3 and a flash point of 318ºC. 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.
- 27425-55-4
- Jingsj CID
- J-15662-7
- Molecular Formula
- C20H19N3O2
- Molecular Weight
- 333.38400 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 234-237 °C(lit.) |
|---|---|
| Boiling Point | 602.3ºC at 760 mmHg |
| Density | 1.302 g/cm3 |
| Flash Point | 318ºC |
| Exact Mass | 333.14800 |
| PSA | 62.13000 |
| LogP | 4.18250 |
| Vapor Pressure | 1.85E-14mmHg at 25°C |
| Refractive Index | 1.692 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Sowrirajan Chandrasekaran, et al. Interaction of Coumarin 7 and Coumarin 314 with C-hexylpyrogallol[4]arene. 25 January 2014 [2]. Kazakov DV, et al. Chemiluminescence in the reaction of 1,2,4,5-tetraoxanes with ferrous ions in the presence of xanthene dyes: fundamentals and perspectives of analytical applications. Photochem Photobiol Sci. 2019 May 15;18(5):1130-1137. |
|---|
Frequently Asked Questions
What is the CAS number of Coumarin 7?
The CAS number of Coumarin 7 is 27425-55-4.
What are the molecular formula and molecular weight of Coumarin 7?
Coumarin 7 has molecular formula C20H19N3O2 and molecular weight 333.38400 g/mol.
Is Coumarin 7 hazardous?
Coumarin 7 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 Coumarin 7?
For Coumarin 7, Upstream Products: 4-(Diethylamino)salicylaldehyde, Ethyl cyanoacetate, o-Phenylenediamine.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Coumarin 7 (CAS 27425-55-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15662-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.