Butyl p-toluenesulfonate
- CAS No.
- 778-28-9
- Chemical Name:
- Butyl p-toluenesulfonate
- Synonyms
- Butyl tosylate;N-BUTYLTOSYLATE;butyltosylate;BUTYL P-TOSYLATE;BUTYL P-TOLUENESULFONATE;BUTYL 4-TOLUENESULFONATE;Butyl4-toluenesulphonate;butyltoluene-4-sulphonate;N-BUTYL P-TOLUENESULFONATE;Butylpara-toluenesulfonate
- CBNumber:
- CB9245972
- Molecular Formula:
- C11H16O3S
- Molecular Weight:
- 228.31
- MDL Number:
- MFCD00027203
- MOL File:
- 778-28-9.mol
- MSDS File:
- SDS
| Product description | Number | Pack Size | Price |
| Butyl p-Toluenesulfonate >97.0%(GC) | T0727 | 25mL | $35 |
| Butyl p-Toluenesulfonate >97.0%(GC) | T0727 | 500mL | $355 |
| Butyl p-toluenesulfonate 98%(GC) | V1710 | 1g | $16 |
| Butyl p-toluenesulfonate 98%(GC) | V1710 | 5g | $23 |
| Butyl p-toluenesulfonate 98%(GC) | V1710 | 25g | $70 |
| More product size | |||
| Boiling point | 170-172 °C (10 mmHg) |
|---|---|
| Density | 1.12 |
| vapor pressure | 0.031Pa at 25℃ |
| refractive index | 1.503-1.505 |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | Chloroform (Slightly), DMSO (Sparingly) |
| form | Liquid |
| color | Clear light yellow to brownish |
| Water Solubility | 44.9mg/L at 20℃ |
| InChI | InChI=1S/C11H16O3S/c1-3-4-9-14-15(12,13)11-7-5-10(2)6-8-11/h5-8H,3-4,9H2,1-2H3 |
| InChIKey | QYJXDIUNDMRLAO-UHFFFAOYSA-N |
| SMILES | C1(S(OCCCC)(=O)=O)=CC=C(C)C=C1 |
| LogP | 2.8 at 20℃ |
| CAS DataBase Reference | 778-28-9(CAS DataBase Reference) |
| EWG's Food Scores | 1 |
| FDA UNII | 00XW1Q3QO1 |
| EPA Substance Registry System | Benzenesulfonic acid, 4-methyl-, butyl ester (778-28-9) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) | ![]() ![]() GHS08,GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H341-H317 | |||||||||
| Precautionary statements | P201-P202-P281-P308+P313-P405-P501-P261-P272-P280-P302+P352-P333+P313-P321-P363-P501 | |||||||||
| Hazard Codes | Xn | |||||||||
| Risk Statements | 36/37/38-22 | |||||||||
| Safety Statements | 37/39-26 | |||||||||
| RTECS | XT6400000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 29041000 | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
Butyl p-toluenesulfonate price More Price(39)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| TCI Chemical | T0727 | Butyl p-Toluenesulfonate >97.0%(GC) | 778-28-9 | 25mL | $35 | 2026-04-30 | Buy |
| TCI Chemical | T0727 | Butyl p-Toluenesulfonate >97.0%(GC) | 778-28-9 | 500mL | $355 | 2026-04-30 | Buy |
| AK Scientific | V1710 | Butyl p-toluenesulfonate 98%(GC) | 778-28-9 | 1g | $16 | 2026-06-04 | Buy |
| AK Scientific | V1710 | Butyl p-toluenesulfonate 98%(GC) | 778-28-9 | 5g | $23 | 2026-06-04 | Buy |
| AK Scientific | V1710 | Butyl p-toluenesulfonate 98%(GC) | 778-28-9 | 25g | $70 | 2026-06-04 | Buy |
Butyl p-toluenesulfonate Chemical Properties,Uses,Production
Description
Butyl p-toluenesulphonate (also known as butyl tosylate) is an important sulphonic acid ester compound, primarily used as an intermediate in organic synthesis. It can be used in the synthesis of 4-butoxyacrylonitrile. This substance is an impurity in the local anaesthetic dacronine. Furthermore, it can be used as a PTSM-type additive in the preparation of electrolyte solutions with low-temperature performance.
Chemical Properties
clear light yellow to brownish liquid
Uses
Butyl 4-Methylbenzenesulfonate is used in preparation of highly-branched chain Ammonium Dicarboxylate Salt.
Hazard
Butyl p-toluenesulphonate is harmful if swallowed. Contact may cause skin irritation and severe eye irritation. Inhalation may cause respiratory irritation.
Flammability and Explosibility
Not classified
Butyl p-toluenesulfonate Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Yanxi Chemical Co., Ltd. | +8618531123677 | faithe@yan-xi.com | China | 5853 | 58 |
| Henan Fengda Chemical Co., Ltd | +86-371-86557731 +86-13613820652 | info@fdachem.com | China | 20120 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21585 | 55 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +8618949832763 | info@tnjchem.com | China | 2988 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29812 | 58 |
| Shenzhen Nexconn Pharmatechs Ltd | +86-755-89396905 +86-15013857715 | admin@nexconn.com | China | 10403 | 58 |
| Nanjing Dolon Biotechnology Co.,Ltd. | 18905173768 | 52513593@qq.com | CHINA | 2972 | 58 |
| Changzhou Ditong Chemical Co.,Ltd | +86-0519-88298848 | info@edengenechem.com | China | 2165 | 58 |
| Jinan Liheng Biotechnology Co., Ltd. | 15865262812 | info@lihengpharm.com | CHINA | 938 | 58 |
| Shouguang Nuomeng Chemical Co Ltd. | 536-5119508 18363669993; | export@nuomengchem.com | China | 46 | 58 |
View Lastest Price from Butyl p-toluenesulfonate manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
![]() |
2026-07-09 | Butyl 4-methylbenzenesulfonate
778-28-9
|
$1.00-122.00 | 1KG | 99% | Henan Fengda Chemical Co., Ltd | ||
![]() |
2026-06-03 | Butyl Para Toluenesulfonate, Butyl P-Toluenesulfonate, P-TOLUENESULFONIC ACID N-BUTYL ESTER
778-28-9
|
$5800.00 | 1KG | 98% Min. | 200 tons per month | Shouguang Nuomeng Chemical Co Ltd. | |
![]() |
2025-06-27 | Butyl p-toluenesulfonate
778-28-9
|
1KG | 99% | 500000kg | Hebei Chuanghai Biotechnology Co., Ltd |
-

- Butyl 4-methylbenzenesulfonate
778-28-9
- $1.00-122.00
- 99%
- Henan Fengda Chemical Co., Ltd
-

- Butyl Para Toluenesulfonate, Butyl P-Toluenesulfonate, P-TOLUENESULFONIC ACID N-BUTYL ESTER
778-28-9
- $5800.00
- 98% Min.
- Shouguang Nuomeng Chemical Co Ltd.
-

- Butyl p-toluenesulfonate
778-28-9
- 99%
- Hebei Chuanghai Biotechnology Co., Ltd
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