Hydroxylamine solution
ALDRICH/467804 - 50 wt. % in H2O, 99.999%
Synonym: HDA
CAS Number: 7803-49-8
Empirical Formula (Hill Notation): H3NO
Molecular Weight: 33.03
EC Number: 232-259-2
MDL Number: MFCD00044522
Linear Formula: NH2OH
Product Type: Chemical
| assay | 99.999% |
| bp | 107 °C |
| concentration | 50 wt. % in H2O |
| density | 1.078 g/mL at 25 °C |
| InChI | 1S/H3NO/c1-2/h2H,1H2 |
| InChI key | AVXURJPOCDRRFD-UHFFFAOYSA |
| Quality Level | 100 ![]() |
| SMILES string | NO |
| Application: | Hydroxylamine solution (NH2OH) can be used as a reactant for the preparation of: • Primary amides from aldehydes catalyzed by an arene–ruthenium(II) complex. • Hydroxyaminoguanidines and carboxamide derivatives of ofloxacin for biological studies. • Fe3O4/Au (GoldMag) nanoparticles for antibody immobilization. |
| Application: | Reactant for preparation of: • Prodrug for cardiovascular agent Nω-hydroxy-L-arginine (NOHA, nitric oxide precursor) • Hydroxyaminoguanidines as anti-cancer agents • Nonsteroidal 2,3-dihydroquinoline glucocorticoid receptor agonists with reduced phosphoenolpyruvate caboxykinase (PEPCK) transactivation • Carboxamide derivatives of ofloxacin with improved antimicrobial properties • Analogues of coumarin based TNF-α converting enzyme (TACE) inhibitors • HIV integrase inhibitors |
| General description: | Hydroxylamine solution is widely used as a reducing agent and antioxidant in organic synthesis, polymer industry and water treatment. |
| Packaging: | 10, 50 mL in poly bottle |
| Symbol | ![]() ![]() ![]() GHS05,GHS07,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H290 - H302 - H315 - H317 - H318 - H335 - H351 - H373 - H400 |
| Precautionary statements | P201 - P273 - P280 - P301 + P312 + P330 - P305 + P351 + P338 + P310 - P308 + P313 |
| Hazard Codes | Xn,N |
| Risk Statements | 5-21/22-37/38-40-41-43-48/22-50 |
| Safety Statements | 26-36/37/39-46-61 |
| RIDADR | UN 3082 9 / PGIII |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 99.999% |
| bp | 107 °C |
| Density | 1.078 g/mL at 25 °C |
| UNSPSC | 12352116 |





