Sulfur trioxide pyridine complex
ALDRICH/84737 - technical, ≥45% SO3 basis
Synonym: NSC 75831; Pyridine sulfur trioxide complex
CAS Number: 26412-87-3
Empirical Formula (Hill Notation): C5H5NO3S
Molecular Weight: 159.16
EC Number: 247-683-3
MDL Number: MFCD00012437
Linear Formula: C5H5NO3S
Product Type: Chemical
| concentration | ≥45% (SO3) |
| form | powder |
| grade | technical |
| ign. residue | ≤0.05% |
| InChI | 1S/C5H5N.O3S/c1-2-4-6-5-3 |
| InChI key | UDYFLDICVHJSOY-UHFFFAOYSA |
| mp | 154-170 °C |
| Quality Level | 200 ![]() |
| reaction suitability | reagent type: oxidant |
| SMILES string | O=S(=O)=O.c1ccncc1 |
| Application: | • Sulfation agent Reactant for: • Preparation of azido anologs of pregnanolone • Sulfate esters of morphine derivatives • Gold nanoparticles capped with sulfate-ended ligands as anti-HIV agents |
| Application: | Sulfur trioxide pyridine complex is mainly a sulfation agent that can be used for sulfations of alcohols, sulfonations, deoxygenations and other reductions, oxidations with DMSO. |
| Packaging: | 10, 100, 500 g in glass bottle |
| Symbol | GHS07 |
| Signal word | Warning |
| Hazard statements | H302 - H315 - H319 |
| Precautionary statements | P264 - P270 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 22-34 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | UN 3261 8 / PGII |
| WGK Germany | WGK 3 |
| mp | 154-170 °C |
| UNSPSC | 12352303 |


