Menadione
Also known as: Vitamin K3, 2-Methyl-1,4-naphthoquinone, Menaphthone, 2-Methyl-1,4-dihydronaphthalene-1,4-dione, K3
Menadione (CAS 58-27-5) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H8O2 and a molecular weight of 172.18000 g/mol. Key properties include a melting point of 105-107 °C(lit.), a boiling point of 304.5ºC at 760 mmHg, a density of 1.225 g/cm3 and a flash point of 113.8ºC. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 58-27-5
- Jingsj CID
- J-37942-5
- Molecular Formula
- C11H8O2
- Molecular Weight
- 172.18000 g/mol
- Category
- Ketones
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 105-107 °C(lit.) |
|---|---|
| Boiling Point | 304.5ºC at 760 mmHg |
| Density | 1.225 g/cm3 |
| Flash Point | 113.8ºC |
| Exact Mass | 172.05200 |
| PSA | 34.14000 |
| LogP | 2.01190 |
| Additional Property | INSOLUBLE |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. http://en.wikipedia.org/wiki/Menadione |
Customs & Trade Information
| HS Code | 2914690090 |
|---|---|
| Summary | 2914690090 other quinones。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of Menadione?
The CAS number of Menadione is 58-27-5.
What are the molecular formula and molecular weight of Menadione?
Menadione has molecular formula C11H8O2 and molecular weight 172.18000 g/mol.
Is Menadione hazardous?
Menadione has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of Menadione?
For Menadione, Upstream Products: 2-Methylnaphthalene, 2-Methyl-1-naphthol, Menadione sodium bisulfite; Downstream Products: 2-Methyl-1,4-naphthalenediol, Menadione, 7-Dehydrocholesterol acetate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Menadione (CAS 58-27-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37942-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.