Hydroxylamine
Also known as: EINECS 232-259-2, Hydroxylamine solution, MFCD00044522, hydroxyl amine, hydroxylamine
Hydroxylamine (CAS 7803-49-8) is a compound in the Inorganic Chemicals category listed in the Jingsj chemical database. It has the molecular formula H3NO and a molecular weight of 33.030 g/mol. Key properties include a melting point of 7°C, a boiling point of 56.5±9.0 °C at 760 mmHg and a density of 1.1±0.1 g/cm3. It is classified under GHS with signal word Danger and hazard statements H290, H302 — Harmful if swallowed and H315 — Causes skin irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 7803-49-8
- Jingsj CID
- J-9813-1
- Molecular Formula
- H3NO
- Molecular Weight
- 33.030 g/mol
- Category
- Inorganic Chemicals
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 7°C |
|---|---|
| Boiling Point | 56.5±9.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Exact Mass | 33.021465 |
| PSA | 46.25000 |
| LogP | -0.81 |
| Vapor Pressure | 179.1±0.2 mmHg at 25°C |
| Refractive Index | 1.395 |
GHS Safety & Compliance
- H290
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H317 — May cause an allergic skin reaction
- H318 — Causes serious eye damage
- H335 — May cause respiratory irritation
- H351 — Suspected of causing cancer
- H373 — May cause damage to organs through prolonged exposure
- H400 — Very toxic to aquatic life
Frequently Asked Questions
What is the CAS number of Hydroxylamine?
The CAS number of Hydroxylamine is 7803-49-8.
What are the molecular formula and molecular weight of Hydroxylamine?
Hydroxylamine has molecular formula H3NO and molecular weight 33.030 g/mol.
Is Hydroxylamine hazardous?
Hydroxylamine has GHS signal word Danger and hazard statements H290; H302 — Harmful if swallowed; H315 — Causes skin irritation.
What are the upstream and downstream products of Hydroxylamine?
For Hydroxylamine, Upstream Products: Hydroxylamine hydrochloride, Potassium hydroxide, Potassium tert-butoxide; Downstream Products: 2-Indanone oxime, Glyoxime, 2-Aminobenzoxazole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Hydroxylamine (CAS 7803-49-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9813-1 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.