Ethyl P-toluenesulfonate CAS 80-40-0

Ethyl P-toluenesulfonate is colourless to light yellow oily liquid. Mainly used as alkylation reagent (e.g. drug/dye synthesis), organic reaction activator and surfactant intermediate, its sulfonate group's high reactivity is outstanding. It needs to be sealed and stored away from light, and has strong irritation to skin and mucous membrane, operation needs protection.

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Model:
80-40-0
Brand:
Futurechemical
Code:
80-40-0

Product Description

Ethyl p-toluenesulfonate Basic information
Product Name:	Ethyl p-toluenesulfonate
CAS:	80-40-0
MF:	C9H12O3S
MW:	200.25
EINECS:	201-276-7
Mol File:	80-40-0.mol
Ethyl p-toluenesulfonate Chemical Properties
Melting point	29-33 °C(lit.)
Boiling point	158-162 °C10 mm Hg(lit.)
density	1.174 g/mL at 25 °C(lit.)
vapor pressure	0.6 hPa (14 °C)
refractive index	n20/D 1.511(lit.)
Fp	316 °F
storage temp.	2-8°C
solubility	1.24g/l
form	Liquid After Melting
color	Clear colorless to pale brown
Water Solubility	Insoluble
Sensitive	Moisture Sensitive
Merck	143,858
BRN	611213
CAS DataBase Reference	80-40-0(CAS DataBase Reference)
NIST Chemistry Reference	Benzenesulfonic acid, 4-methyl-, ethyl ester(80-40-0)
EPA Substance Registry System	Benzenesulfonic acid, 4-methyl-, ethyl ester (80-40-0)

Ethyl P-toluenesulfonate CAS 80-40-0 C9H12O3S Alkylating agent Polymer material modifier Dye preparation catalyst Plastic antistatic additive Coating crosslinking promoter Electronic packaging material treatment agent Flavor synthesis

Quality Assurance

Full-Process Quality Control: From incoming raw material inspection to in-process monitoring and final outgoing checks, every batch is inspected at each production stage against strict acceptance standards.
Third-Party Certified & Tested: Our quality management system is certified to ISO 9001, and products are regularly tested by accredited laboratories (e.g. SGS, TÜV). Test reports are available on request.
100% Batch Traceability: Each batch carries a unique lot number that links raw material records, production parameters, and test results, enabling complete traceability from factory to final delivery.
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FAQ From Customers

Q1: What is the minimum order quantity?

A: There is no quantity limit for the first sample or trial order. Just tell us the actual quantity you need.
Q2: How can I confirm that the quality meets the requirements?

A: Provide your specifications, and our technical team will check them or customize them for you; we can provide TDS, MSDS, and COA, and accept third-party testing.
Q3: How do you ensure stable quality?

A: We manufacture under an ISO 9001 quality system, test every batch before release, and retain samples for 24 months for traceability.
Q4: Do you provide samples?

A: Yes — Free samples are available; freight is at buyer's expense for express delivery.