S-tert-Butyl thioacetate

CAS 999-90-6CH3COSC(CH3)3Chemical Synthesis

S-tert-Butyl thioacetate (CAS 999-90-6) is a sulfur-containing organic compound with the linear formula CH3COSC(CH3)3 and a molecular weight of 132.22 g/mol. This thiol ester serves as a versatile building block in organic synthesis. Its primary applications lie in chemical synthesis and as an intermediate for creating more complex organic molecules. Tech Serve Solutions offers this reagent for research and development purposes.

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S-tert-Butyl thioacetate (CH3COSC(CH3)3) — chemical structure, CAS 999-90-6; Chemistry, fine chemical supplied by Tech Serve Solutions

Building BlocksChemical SynthesisOrganic Building BlocksSulfur CompoundsThiol Esters

01 /Applications

Organic Synthesis Intermediate

S-tert-Butyl thioacetate functions as a key intermediate in various organic synthesis pathways. It can be utilized in reactions requiring a protected thiol group or as a source of the tert-butylthio moiety.

Building Block for Complex Molecules

This compound is valuable as a building block for constructing more complex organic structures. Its specific functional groups allow for controlled chemical transformations in multi-step syntheses.

Sulfur Chemistry Research

Researchers in sulfur chemistry may employ S-tert-Butyl thioacetate for studies involving thioesters or the introduction of sulfur atoms into organic frameworks.

02 /Properties

Molecular weight	132.22
Linear formula	CH3COSC(CH3)3
Assay	≥98.0% (GC)
Boiling point	135-136 °C(lit.)
Density	0.927 g/mL at 25 °C(lit.)
Refractive index	n20/D 1.453(lit.)n20/D 1.453

03 /Safety & handling

GHS hazard pictogram: Flammable (GHS02) — Flammable

Warning

Hazard statements

H226Flammable liquid and vapour

Protective equipment	Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point	34 °C / 93.2 °F
Transport (UN / ADR)	UN 1993C 3 / PGIII
Water hazard class (WGK, DE)	3
Risk statements (R)	10

Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.

04 /Identifiers & registry

CAS number

999-90-6

MDL number

MFCD00042941

PubChem substance

24865924

Beilstein registry

1740436

05 /Quality & supply

Documentation

Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.

Supply & logistics

Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.

06 /Frequently asked questions

What is S-tert-Butyl thioacetate used for?

S-tert-Butyl thioacetate is primarily used as a versatile building block in organic synthesis and as an intermediate for creating more complex organic molecules. It is also utilized in research related to sulfur chemistry.

What is the CAS number and chemical formula for S-tert-Butyl thioacetate?

The CAS number is 999-90-6 and the linear chemical formula is CH3COSC(CH3)3.

What grade and purity does Tech Serve Solutions supply?

Tech Serve Solutions supplies S-tert-Butyl thioacetate with an assay of ≥98.0% (GC). We do not represent this product as USP, BP, or EP grade.

How should S-tert-Butyl thioacetate be handled safely?

S-tert-Butyl thioacetate is a flammable liquid and vapour (H226). Handle with appropriate personal protective equipment, including eyeshields and gloves, in a well-ventilated area. Ensure good housekeeping to prevent fire hazards.