Ethyl Isethionate

About Ethyl Isethionate

Ethyl Isethionate is a metabolite or degradation product of Pentamidine carrying the CAS registry number 58337-44-3. Formula C4H10O4S, molecular weight 154.19 g/mol. Its systematic (IUPAC) name is ethyl 2-hydroxyethanesulfonate. Common synonyms include Ethanesulfonic acid, 2-hydroxy-, ethyl ester and Ethyl hydroxyethanesulfonate.

It is supplied as a solid. Keep the vial tightly closed, protected from light and humidity, at the temperature stated on the Certificate of Analysis. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

It is used in metabolite identification, stability-indicating method development and impurity profiling of Pentamidine, as well as in QC testing and ANDA/DMF documentation. It is used across pharmaceutical manufacturing and academic and industrial research.

Standard pack sizes are 10 mg, 25 mg, 50 mg and 100 mg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide.

Typical applications

Metabolite identification
Stability-indicating methods
Impurity profiling

Industries

Related to Pentamidine

View every impurity, metabolite and intermediate we list for Pentamidine.

Pentamidine impurities

Specifications & identifiers

Chemical identifiers
Product name	Ethyl Isethionate
Catalogue No.	VQ-039699
CAS Number	58337-44-3
IUPAC name	ethyl 2-hydroxyethanesulfonate
Molecular formula	C₄H₁₀O₄S
Molecular weight	154.19 g/mol
Exact mass	154.03
Grade	Reference Standard
HSN code	38229090
InChIKey	SNYNEPHSWSWZGZ-UHFFFAOYSA-N
SMILES	CCOS(=O)(=O)CCO
PubChem CID	148830

Physical properties
Physical form	Solid
LogP (XLogP3)	-0.7
H-bond donors / acceptors	1 / 4
TPSA	72 Å²
Synonyms	Ethanesulfonic acid, 2-hydroxy-, ethyl ester, Ethyl hydroxyethanesulfonate, ethyl 2-hydroxyethane-1-sulfonate, Ethyl 2-hydroxyethylsulfonate, ethyl2-hydroxyethane-1-sulfonate

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Ethyl Isethionate?

The CAS Registry Number of Ethyl Isethionate is 58337-44-3. It is also known as Ethanesulfonic acid, 2-hydroxy-, ethyl ester, Ethyl hydroxyethanesulfonate, ethyl 2-hydroxyethane-1-sulfonate.

What is the molecular formula and molecular weight of Ethyl Isethionate?

Ethyl Isethionate has the molecular formula C4H10O4S and a molecular weight of 154.19 g/mol. Its IUPAC name is ethyl 2-hydroxyethanesulfonate.

What is Ethyl Isethionate used for?

Ethyl Isethionate is supplied as a characterised reference material related to Pentamidine. It is used for analytical method development and validation (AMV), impurity profiling, stability studies and quality control, and in ANDA/DMF regulatory filings.

Which grade and pack sizes of Ethyl Isethionate can I order?

We supply Ethyl Isethionate in Reference Standard grade, in 10 mg, 25 mg, 50 mg, 100 mg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Ethyl Isethionate?

Yes. Every lot of Ethyl Isethionate is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Ethyl Isethionate be shipped internationally?

Yes. Ethyl Isethionate is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.