Methyl p-toluenesulfonate
- CAS No.
- 80-48-8
- Chemical Name:
- Methyl p-toluenesulfonate
- Synonyms
- Methyl 4-methylbenzenesulfonate;MPTS;METHYL TOSYLATE;METHYL TOLUENE-4-SULPHONATE;PTSME;METHYL P-TOSYLATE;Methyl para-toluenesulfonate;4-TOLUENESULFONIC ACID METHYL ESTER;4-methyl-benzenesulfonicacimethylester;4-methylbenzenesulfonic acid methyl ester
- CBNumber:
- CB8715537
- Molecular Formula:
- C8H10O3S
- Molecular Weight:
- 186.23
- MDL Number:
- MFCD00008417
- MOL File:
- 80-48-8.mol
- MSDS File:
- SDS
| Melting point | 25-28 °C(lit.) |
|---|---|
| Boiling point | 144-145 °C5 mm Hg(lit.) |
| Density | 1.234 g/mL at 25 °C(lit.) |
| vapor density | 6.45 (vs air) |
| vapor pressure | 1 mm Hg ( 20 °C) |
| refractive index |
n |
| Flash point | >230 °F |
| storage temp. | 2-8°C |
| solubility | Chloroform (Slightly), Methanol (Slightly) |
| form | Liquid or Low Melting Solid |
| color | White to yellow |
| Water Solubility | Insoluble |
| Sensitive | Moisture Sensitive |
| BRN | 609209 |
| LogP | 1.88 at 25℃ |
| CAS DataBase Reference | 80-48-8(CAS DataBase Reference) |
| FDA UNII | 4SU69KI68L |
| NIST Chemistry Reference | Benzenesulfonic acid, 4-methyl-, methyl ester(80-48-8) |
| EPA Substance Registry System | Benzenesulfonic acid, 4-methyl-, methyl ester (80-48-8) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |   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,Xn | |||||||||
| Risk Statements | 22-34-43-40-36/37/38 | |||||||||
| Safety Statements | 26-36/37/39-45-24 | |||||||||
| RIDADR | UN 3261 8/PG 2 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | XT7000000 | |||||||||
| F | 21 | |||||||||
| Autoignition Temperature | 896 °F | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29051900 | |||||||||
| Toxicity | LD50 orally in Rabbit: 341 mg/kg | |||||||||
| NFPA 704 |
|
Methyl p-toluenesulfonate price More Price(33)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 8.08333 | Methyl-4-toluenesulfonate for synthesis | 80-48-8 | 100g | $36.1 | 2024-03-01 | Buy |
| Sigma-Aldrich | 8.08333 | Methyl-4-toluenesulfonate for synthesis | 80-48-8 | 500g | $104 | 2024-03-01 | Buy |
| Sigma-Aldrich | 8.08333 | Methyl-4-toluenesulfonate for synthesis | 80-48-8 | 2.5kg | $383 | 2024-03-01 | Buy |
| Sigma-Aldrich | 8.08333 | Methyl-4-toluenesulfonate for synthesis | 80-48-8 | 25kg | $1130 | 2024-03-01 | Buy |
| Sigma-Aldrich | 158992 | Methyl p-toluenesulfonate 98% | 80-48-8 | 100g | $41.9 | 2024-03-01 | Buy |
Methyl p-toluenesulfonate Chemical Properties,Uses,Production
Chemical Properties
white to slightly yellow low melting solid. Soluble in alcohol, ether, benzene, insoluble in water. Hygroscopic.
Uses
Methyl p-Toluenesulfonate can be used in the manufacture of dyes and organic synthesis, and also is the raw materials of methylation.
Uses
Methyl p-toluenesulfonate is used as a methylating agent in organic synthesis. It acts as a catalyst for alkyd resins. It is also employed in selective 1-substitution reaction of tetrazole. Further, it is used in the preparation of dyes.
Preparation
Methyl p-toluenesulfonate was synthesized by the reaction of p-toluenesulfonyl chloride with methanol. Mix p-toluenesulfonyl chloride and methanol, slowly add 25% sodium hydroxide solution, control the temperature below 25 °C, stop adding alkali when the pH is 9, continue stirring for 2 hours, and leave overnight. The lower layer of reactant was taken, the upper layer was extracted with benzene, the extract was recovered with benzene and then combined with the lower layer, washed with water and 5% potassium carbonate solution in turn, dried and distilled under reduced pressure to obtain the finished product of methyl p-toluenesulfonate.
Synthesis Reference(s)
Chemical and Pharmaceutical Bulletin, 29, p. 623, 1981 DOI: 10.1248/cpb.29.623
Synthetic Communications, 15, p. 1057, 1985 DOI: 10.1080/00397918508076842
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.
Hazard
Toxic by ingestion and inhalation, strongirritant to skin and eyes.
Safety Profile
Poison by ingestion and subcutaneous routes. An eye and severe skin irritant. A vesicant and skin sensitizer. Questionable carcinogen with experimental tumorigenic data. When heated to decomposition it emits toxic fumes of SOx.
Purification Methods
The ester is purified by distillation in vacuo and could be crystallised from pet ether or Et2O/pet ether at low temperature. It is a powerful methylating agent, is TOXIC andis a skin irritant, so it is better to purify it by repeated distillation. [IR: Schreiber Anal Chem 21 1168 1949, Buehler et al. J Org Chem 2 167 1937, Roos et al. Org Synth Coll Vol I 145 1948, Beilstein 11 IV 247.]
Methyl p-toluenesulfonate Preparation Products And Raw materials
Raw materials
1of2
Preparation Products
1of3
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Changzhou AniKare Pharmatech Co., Ltd. | +86-0519-8359-8696 +8618018249389 | sales@anikare.com | China | 8382 | 58 |
| Shouguang Nuomeng Chemical Co Ltd. | 536-5119508 18363669993; | export@nuomengchem.com | China | 44 | 58 |
| Junwee Chemical co., Ltd. | +86-571-85808636 +86-13958122542 | sales@junweechem.com | China | 821 | 58 |
| Hebei Mojin Biotechnology Co., Ltd | +8613288715578 | sales@hbmojin.com | China | 12456 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8617531190177 | peter@yan-xi.com | China | 5993 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 7845 | 58 |
| Sigma Audley | +86-18336680971 +86-18126314766 | nova@sh-teruiop.com | China | 525 | 58 |
| Shanghai Aosiris new Material Technology Co., LTD | 86-15139564871 +8615139564871 | wrjmoon2000@163.com | China | 352 | 58 |
| Capot Chemical Co.,Ltd. | 571-85586718 +8613336195806 | sales@capotchem.com | China | 29797 | 60 |
| Shanghai Daken Advanced Materials Co.,Ltd | +86-371-66670886 | info@dakenam.com | China | 15928 | 58 |
View Lastest Price from Methyl p-toluenesulfonate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-04-25 | Methyl p-toluenesulfonate
80-48-8
|
US $0.00 / Kg/Drum | 1KG | 99% | 2000mt/year | Jinan Finer Chemical Co., Ltd | |
 |
2024-04-25 | Methyl p-toluenesulfonate
80-48-8
|
US $100.00 / kg | 1kg | >99% | 50 TONS | Hong Kong Excellence Biotechnology Co., Ltd. | |
 |
2024-04-12 | Methyl p-toluenesulfonate
80-48-8
|
US $3.00-1.00 / kg | 1kg | 99.9% | 10 tons | Shanghai Aosiris new Material Technology Co., LTD |
-
- Methyl p-toluenesulfonate
80-48-8
- US $0.00 / Kg/Drum
- 99%
- Jinan Finer Chemical Co., Ltd
-
- Methyl p-toluenesulfonate
80-48-8
- US $100.00 / kg
- >99%
- Hong Kong Excellence Biotechnology Co., Ltd.
-
- Methyl p-toluenesulfonate
80-48-8
- US $3.00-1.00 / kg
- 99.9%
- Shanghai Aosiris new Material Technology Co., LTD