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3-(tert-Butyldimethylsilyloxy)glutaric anhydride

Also known as: 3-(tert-Butyldimethylsilyloxy)glutaric anhydride, 4-[[(1,1-dimethylethyl)dimethylsilyl]oxy]dihydro-2H-pyran-2,6(3H)-dione, 4-[tert-butyl(dimethyl)silyl]oxyoxane-2,6-dione, 4-{[Dimethyl(2-methyl-2-propanyl)silyl]oxy}dihydro-2H-pyran-2,6(3H)-dione, 4-{[tert-Butyl(dimethyl)silyl]oxy}dihydro-2H-pyran-2,6(3H)-dione

3-(tert-Butyldimethylsilyloxy)glutaric anhydride (CAS 91424-40-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H20O4Si and a molecular weight of 244.360 g/mol. Key properties include a melting point of 79-81 °C(lit.), a boiling point of 302.4±35.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 113.6±21.5 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
91424-40-7
Jingsj CID
J-39574-4
Molecular Formula
C11H20O4Si
Molecular Weight
244.360 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point79-81 °C(lit.)
Boiling Point302.4±35.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point113.6±21.5 °C
Exact Mass244.113083
PSA52.60000
LogP1.55
Vapor Pressure0.0±0.6 mmHg at 25°C
Refractive Index1.452
Storage Conditions2-8℃

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2931900090
Summary2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3-(tert-Butyldimethylsilyloxy)glutaric anhydride?

The CAS number of 3-(tert-Butyldimethylsilyloxy)glutaric anhydride is 91424-40-7.

What are the molecular formula and molecular weight of 3-(tert-Butyldimethylsilyloxy)glutaric anhydride?

3-(tert-Butyldimethylsilyloxy)glutaric anhydride has molecular formula C11H20O4Si and molecular weight 244.360 g/mol.

Is 3-(tert-Butyldimethylsilyloxy)glutaric anhydride hazardous?

3-(tert-Butyldimethylsilyloxy)glutaric anhydride has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 3-(tert-Butyldimethylsilyloxy)glutaric anhydride?

For 3-(tert-Butyldimethylsilyloxy)glutaric anhydride, Upstream Products: Diethyl 3-(tert-Butyldimethylsilyloxy)glutarate, Diethyl 3-hydroxyglutarate, tert-Butyldimethylchlorosilane; Downstream Products: Mevastatin, (3R)-3-((tert-Butyldimethylsilyl)oxy)-5-methoxy-5-oxopentanoic acid, 5-Oxorosuvastatin Methyl Ester.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3-(tert-Butyldimethylsilyloxy)glutaric anhydride (CAS 91424-40-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39574-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.