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Hydralazine hydrochloride · CAS 304-20-1 · C8H9ClN4. UNII FD171B778Y. Melting Point: Decomposes at 273 °C; Solubility: In 95% ethanol, 0.2 g/100 ml; Solubility: In water, 44.2 g/l @ 25 °C; 30.1 g/l @ 15 °C.
| CAS Registry Number | 304-20-1 |
|---|---|
| PubChem CID | 9351 |
| Molecular formula | C8H9ClN4 |
| IUPAC name | phthalazin-1-ylhydrazine;hydrochloride |
| UNII (FDA) | FD171B778Y |
| Molecular Weight | 196.64 |
|---|---|
| Hydrogen Bond Donor Count | 3 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 1 |
| Exact Mass | 196.0515740 |
| Monoisotopic Mass | 196.0515740 |
| Topological Polar Surface Area | 63.8 |
| Heavy Atom Count | 13 |
| Formal Charge | 0 |
| Complexity | 150 |
| Melting Point | Decomposes at 273 °C |
|---|---|
| Solubility | In 95% ethanol, 0.2 g/100 ml |
| Solubility | In water, 44.2 g/l @ 25 °C; 30.1 g/l @ 15 °C |
| pH | pH= 3.5 to 4.5 (2% solution) |
| Formulations/Preparations | C 5968 |
| Reported hazard statements | H301 (100%), H315 (93%), H319 (92.1%), H334 (12.3%), H335 (81.6%), H341 (10.5%), H371 (10.5%), H317 |
|---|
H301 (100%): Toxic if swallowed [Danger Acute toxicity, oral]
H315 (93%): Causes skin irritation [Warning Skin corrosion/irritation]
HYDRALAZINE HYDROCHLORIDE; 304-20-1; HYDRALAZINE HCL; 1-Hydrazinophthalazine hydrochloride; Dralzine; Hydralazine chloride; Hydralazine monohydrochloride; 1-Hydrazinophthalazine monohydrochloride; Apressinum; DTXSID1044645; FD171B778Y; NSC-89394; Phthalazine, 1-hydrazino-, monohydrochloride; Hydralazini hydrochloridum; Hydrochloride, Hydralazine; MC-1101
CAS 304-20-1; molecular formula C8H9ClN4; molecular weight — g/mol.
HYDRALAZINE HYDROCHLORIDE, 304-20-1, HYDRALAZINE HCL, 1-Hydrazinophthalazine hydrochloride, Dralzine, Hydralazine chloride.
Hazard statements reported: H301, H315, H319, H334, H335.
Melting Point: Decomposes at 273 °C; Solubility: In 95% ethanol, 0.2 g/100 ml; Solubility: In water, 44.2 g/l @ 25 °C; 30.1 g/l @ 15 °C; pH: pH= 3.5 to 4.5 (2% solution).
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.