Minoxidil
Also known as: 6-(1-Piperidinyl)-2,4-pyrimidinediamine 3-oxide, 6-(1-Piperidinyl)pyrimidine-2,4-diamine 3-oxide, 2,4-Diamino-6-piperidinopyrimidine 3-oxide, 2,4-Diamino-6-piperidino-pyrimidine-3-oxide, 6-Piperidino-2,4-diaminopyrimidine 3-oxide, Loniten, Rogaine, Regaine, Alostil, Lonolox, Minoximen, Theroxidil, Tricoxidil, Alopexil, Alostil, Lonolox, (2E)-6-Amino-2-imino-4-(1-piperidinyl)-1(2H)-pyrimidinol, 6-Amino-1,2-dihydro-1-hydroxy-2-imino-4-piperidinopyrimidine, 2,6-Diamino-4-(piperidin-1-yl)pyrimidine 1-oxide, 2,6-Diamino-4-piperidinopyrimidine 1-oxide
Minoxidil (CAS 38304-91-5) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C9H15N5O and a molecular weight of 209.248 g/mol. Key properties include a melting point of 272-274 °C (dec.)(lit.), a boiling point of 351.7±45.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 166.5±28.7 °C. 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.
- 38304-91-5
- Jingsj CID
- J-44342-5
- Molecular Formula
- C9H15N5O
- Molecular Weight
- 209.248 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 272-274 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 351.7±45.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 166.5±28.7 °C |
| Exact Mass | 209.127655 |
| PSA | 91.16000 |
| LogP | -1.49 |
| Vapor Pressure | 0.0±1.8 mmHg at 25°C |
| Refractive Index | 1.724 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Cohen, R.L., et al., Direct effects of minoxidil on epidermal cells in culture. J Invest Dermatol, 1984. 82(1): p. 90-3. [2]. Grice, J.E., et al., Relative uptake of minoxidil into appendages and stratum corneum and permeation through human skin in vitro. J Pharm Sci, 2010. 99(2): p. 712-8. |
|---|
Customs & Trade Information
| HS Code | 2933990090 |
|---|---|
| Summary | 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Minoxidil?
The CAS number of Minoxidil is 38304-91-5.
What are the molecular formula and molecular weight of Minoxidil?
Minoxidil has molecular formula C9H15N5O and molecular weight 209.248 g/mol.
Is Minoxidil hazardous?
Minoxidil 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 Minoxidil?
For Minoxidil, Upstream Products: Ketoconazole, 2,6-Diamino-4-chloropyrimidine 1-oxide.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Minoxidil (CAS 38304-91-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-44342-5 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.