Benzenesulfonic acid monohydrate
ALDRICH/448737 - 97%
CAS Number: 26158-00-9
Empirical Formula (Hill Notation): C6H6O3S · H2O
Molecular Weight: 176.19
EC Number: 202-638-7
MDL Number: MFCD00149976
Linear Formula: C6H5SO3H · H2O
Product Type: Chemical
| assay | 97% |
| form | solid |
| functional group | sulfonic acid |
| InChI | 1S/C6H6O3S.H2O/c7-10(8,9) |
| InChI key | MVIOINXPSFUJEN-UHFFFAOYSA |
| mp | 42-49 °C (lit.) |
| Quality Level | 100 ![]() |
| SMILES string | O.OS(=O)(=O)c1ccccc1 |
| Application: | Benzenesulfonic acid monohydrate (PhSO3H. H2O) can be used as: • A catalyst to synthesize α,β-unsaturated amides via Pd-catalyzed selective aminocarbonylation of styrenes with nitroarenes. • A reactant to prepare amino acid benzyl ester salts for the study of gelation in nonpolar solvents. • A catalyst for the conversion of oxydipropionitrile (nitrile) to di-n-propyl-oxydipropionate (ester). |
| Packaging: | 50, 250 g in glass bottle |
| Symbol | ![]() GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H302 + H312 + H332 - H314 |
| Precautionary statements | P260 - P280 - P301 + P330 + P331 - P303 + P361 + P353 - P304 + P340 + P312 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 20/21/22-34 |
| Safety Statements | 26-27-36/37/39-45 |
| RIDADR | UN 2585PSN2 8 / PGIII |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | 97% |
| mp | 42-49 °C (lit.) |
| UNSPSC | 12352106 |



