Methyl p-toluenesulfonate
ALDRICH/158992 - 98%
Synonym: Methyl p-
CAS Number: 80-48-8
Empirical Formula (Hill Notation): C8H10O3S
Molecular Weight: 186.23
EC Number: 201-283-5
MDL Number: MFCD00008417
Linear Formula: CH3C6H4SO3CH3
Product Type: Chemical
| assay | 98% |
| autoignition temp. | 896 °F |
| bp | 144-145 °C/5 mmHg (lit.) |
| density | 1.234 g/mL at 25 °C (lit.) |
| form | solid |
| functional group | tosylate |
| InChI | 1S/C8H10O3S/c1-7-3-5-8(6- |
| InChI key | VUQUOGPMUUJORT-UHFFFAOYSA |
| mp | 25-28 °C (lit.) |
| Quality Level | 200 ![]() |
| refractive index | n |
| SMILES string | COS(=O)(=O)c1ccc(C)cc1 |
| storage temp. | 2-8°C |
| vapor density | 6.45 (vs air) |
| vapor pressure | 1 mmHg ( 20 °C) |
| General description: | Methyl p-toluenesulfonate is sulfonate ester present as potentially genotoxic impurity in drug substances. Kinetics of reactions of methyl p-toluenesulfonate with N,N-dimethylaniline has been investigated. It participates in selective 1-substitution reaction of tetrazole. |
| Packaging: | 100, 500 g in poly bottle |
| Symbol | ![]() GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H302 - H314 - H317 |
| Precautionary statements | P260 - P270 - P280 - P301 + P312 - P303 + P361 + P353 - P305 + P351 + P338 |
| Hazard Codes | C |
| Risk Statements | 22-34-43 |
| Safety Statements | 26-36/37/39-45 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 2 |
| Flash Point(F) | 235.4 °F - closed cup |
| Flash Point(C) | 113 °C - closed cup |
| Purity | 98% |
| bp | 144-145 °C/5 mmHg (lit.) |
| mp | 25-28 °C (lit.) |
| Density | 1.234 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| Storage Temp. | 2-8°C |
| UNSPSC | 12352100 |



