123333-53-9
| Name | 1-Hydroxybenzotriazole hydrate |
| CAS | 123333-53-9 |
| EINECS(EC#) | 219-989-7 |
| Molecular Formula | C6H7N3O2 |
| MDL Number | MFCD00065690 |
| Molecular Weight | 153.14 |
| MOL File | 123333-53-9.mol |
Chemical Properties
| Appearance | White to off-white powder |
| Melting point | 155-158 °C(lit.) |
| Boiling point | 248.8°C (rough estimate) |
| density | 1.065 g/cm |
| refractive index | 1.6910 (estimate) |
| storage temp. | Store at RT. |
| solubility | DMF: 100 mg/mL, clear |
| form | Solid |
| color | White to Off-White |
| Water Solubility | slightly soluble |
| Usage | A common additive for peptide coupling. |
| Detection Methods | HPLC,NMR |
| BRN | 4515 |
| Stability: | Hygroscopic |
| Major Application | peptide synthesis |
| InChI | InChI=1S/C6H5N3O.H2O/c10-9-6-4-2-1-3-5(6)7-8-9;/h1-4,10H;1H2 |
| InChIKey | PJUPKRYGDFTMTM-UHFFFAOYSA-N |
| SMILES | ON1N=NC2C=CC=CC1=2.O |
| CAS DataBase Reference | 123333-53-9(CAS DataBase Reference) |
Safety Data
| Symbol(GHS) |   GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H207-H319-H412 |
| Precautionary statements | P210-P212-P230-P233-P280-P370+P380+P375-P501 |
| Hazard Codes | F |
| Risk Statements | |
| Safety Statements | |
| RIDADR | UN 3380 4.1/PG 1 |
| WGK Germany | - |
| F | 4.10-8 |
| Hazard Note | Highly Flammable |
| HazardClass | 4.1 |
| PackingGroup | I (1-HYDROXYBENZOTRIAZOLE MONOHYDRATE) |
| HS Code | 29339900 |
| Storage Class | 4.1A - Other explosive hazardous materials |
| Hazard Classifications | Aquatic Chronic 3 Desen. Expl. 2 Eye Irrit. 2 |