Tech Serve Solutions

S-tert-Butyl thioacetate

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

S-tert-Butyl thioacetate (CAS 999-90-6), molecular formula CH3COSC(CH3)3, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to pharmacopoeia specification (USP, BP, EP). Every batch is tested and ships with a Certificate of Analysis; MSDS and technical data sheets are available on request. Tech Serve Solutions has supplied laboratory reagents, fine chemicals and pharmaceutical intermediates worldwide since 1998.

S-tert-Butyl thioacetate
Building BlocksChemical SynthesisOrganic Building BlocksSulfur CompoundsThiol Esters
01 /Properties
Molecular weight132.22
Linear formulaCH3COSC(CH3)3
Assay≥98.0% (GC)
Boiling point135-136 °C(lit.)
Density0.927 g/mL at 25 °C(lit.)
Refractive indexn20/D 1.453(lit.)n20/D 1.453
02 /Safety & handling
Flammable
Flammable
Warning

Hazard statements

  • H226Flammable liquid and vapour
Protective equipmentEyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter
Flash point34 °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.

03 /Identifiers & registry
CAS number
999-90-6
MDL number
MFCD00042941
PubChem substance
24865924
Beilstein registry
1740436
04 /Quality & supply

Documentation

Supplied to USP, BP and EP standards. Every batch ships with a Certificate of Analysis (assay, identity, purity); MSDS 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.

05 /Frequently asked questions

What is S-tert-Butyl thioacetate?

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S-tert-Butyl thioacetate (CAS 999-90-6), molecular formula CH3COSC(CH3)3, is a high-purity chemical supplied by Tech Serve Solutions for chemical synthesis applications, to USP, BP and EP standards.

What grades of S-tert-Butyl thioacetate does Tech Serve Solutions supply?

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Tech Serve Solutions supplies S-tert-Butyl thioacetate in USP, BP, EP and reagent/AR grades. Custom specifications for nutraceutical or specialty pharmaceutical applications are available — contact our technical sales team.

What is the CAS number and molecular formula of S-tert-Butyl thioacetate?

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S-tert-Butyl thioacetate has CAS number 999-90-6 and molecular formula CH3COSC(CH3)3. Full specifications appear in the table above and in the Certificate of Analysis.

What is the typical minimum order quantity and lead time for S-tert-Butyl thioacetate?

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Sample quantities are available for technical evaluation; bulk MOQ depends on grade and packaging. In-stock material typically ships in 7–10 working days; custom-spec orders take 3–4 weeks. Tech Serve Solutions ships worldwide with full export documentation.

Do you provide a Certificate of Analysis (CoA) with each shipment?

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Yes. Every batch of S-tert-Butyl thioacetate ships with a Certificate of Analysis covering assay, identity and purity tests, plus pharmacopoeia conformance where applicable. MSDS and TDS documents are available on request before order placement.

How should S-tert-Butyl thioacetate be stored?

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Store S-tert-Butyl thioacetate in its original sealed container in a cool, dry place away from direct sunlight and incompatible materials, in line with the storage guidance on the Safety Data Sheet. Reseal between dispensings.

What is S-tert-Butyl thioacetate used for?

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S-tert-Butyl thioacetate is used in chemical synthesis applications across pharmaceutical, research and industrial settings. Our technical team can advise on suitability for your specific process.

How do I request a quote for S-tert-Butyl thioacetate?

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Request a quote with your required grade, quantity and destination via https://www.techservesolutions.in/contact or email info@techservesolutions.in. We respond with specifications, a Certificate of Analysis and pricing.

Need S-tert-Butyl thioacetate in a specific grade or volume?

Request a quote