N-Methyl-N-nitrosourea
Also known as: 1-Methyl-1-nitrosourea, N-Nitroso-N-methylurea, Methylnitrosourea, MNU, NMU, 1-Nitroso-1-methylurea, N-methyl-N-nitroso-urea
N-Methyl-N-nitrosourea (CAS 684-93-5) is a compound in the Nitrogen Compounds category listed in the Jingsj chemical database. It has the molecular formula C2H5N3O2 and a molecular weight of 103.080 g/mol. Key properties include a melting point of 119-124°C, a boiling point of 164.3±23.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 53.1±22.6 °C. It is classified under GHS with signal word Danger and hazard statements H228, H301 — Toxic if swallowed and H350 — May cause cancer. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 684-93-5
- Jingsj CID
- J-28563-4
- Molecular Formula
- C2H5N3O2
- Molecular Weight
- 103.080 g/mol
- Category
- Nitrogen Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 119-124°C |
|---|---|
| Boiling Point | 164.3±23.0 °C at 760 mmHg |
| Density | 1.5±0.1 g/cm3 |
| Flash Point | 53.1±22.6 °C |
| Exact Mass | 103.038177 |
| PSA | 75.76000 |
| LogP | -0.03 |
| Vapor Pressure | 2.0±0.3 mmHg at 25°C |
| Refractive Index | 1.545 |
| Storage Conditions | 2-8°C |
| Stability | Stable. Flammable. Incompatible with strong oxidizing agents, strong bases, strong acids. |
GHS Safety & Compliance
- H228
- H301 — Toxic if swallowed
- H350 — May cause cancer
- H360 — May damage fertility or the unborn child
Activity & Biological Data
| Additional Information | [1]. Gullino PM, et al. N-nitrosomethylurea as mammary gland carcinogen in rats. J Natl Cancer Inst. 1975 Feb;54(2):401-14. [2]. Tsubura A, et al. Review: Animal models of N-Methyl-N-nitrosourea-induced mammary cancer and retinal degeneration with special emphasis on therapeutic trials. In Vivo. 2011 Jan-Feb;25(1):11-22. [3]. Johnson EM, et al. Effects of N-nitroso-N-methylurea on enzymatic ontogeny associated with teratogenesis. Teratology. 1968 May;1(2):179-91. [4]. Silvia Garbarino, et al. One-pot synthesis of α-haloketones employing a membrane-based semibatch diazomethane generator. Journal of Flow Chemistry volume 6, pages211-217(2016). [5]. Moon KY. N-nitroso-N-methylurea and N-nitroso-N-ethylurea induce upregulation of cellular NF-kappa B activity through protein kinase C-dependent pathway in human malignant keratinocytes. Arch Pharm Res. 2010 Jan;33(1):133-9. |
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Frequently Asked Questions
What is the CAS number of N-Methyl-N-nitrosourea?
The CAS number of N-Methyl-N-nitrosourea is 684-93-5.
What are the molecular formula and molecular weight of N-Methyl-N-nitrosourea?
N-Methyl-N-nitrosourea has molecular formula C2H5N3O2 and molecular weight 103.080 g/mol.
Is N-Methyl-N-nitrosourea hazardous?
N-Methyl-N-nitrosourea has GHS signal word Danger and hazard statements H228; H301 — Toxic if swallowed; H350 — May cause cancer.
What are the upstream and downstream products of N-Methyl-N-nitrosourea?
For N-Methyl-N-nitrosourea, Upstream Products: Methylurea, 1-Acetyl-3-methylurea, Methylamine hydrochloride; Downstream Products: Methanol, Methylurea, BENZYLUREA.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "N-Methyl-N-nitrosourea (CAS 684-93-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-28563-4 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.