(R)-5-(((tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-2-one

Also known as: (5R)-5-[[[(tert-butyl)dimethylsilyl]oxy]methyl]-2-pyrrolidinone, (2R)-2-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-5-oxo-1-pyrrolidine, (5R)-5-[[[(1,1-dimethylethyl)dimethylsilyl]oxy]methyl]-2-pyrrolidinone, (5R)-5-[[[(tert-butyl)dimethylsilyl]oxy]methyl]pyrrolidin-2-one, 5(R)-5-{(tert-butyldimethylsilyloxy)methyl}pyrrolidin-2-one, D-O-TBDMS-PYROGLUTAMINOL, (R)-5-((tert-butyldimethylsilyloxy)methyl)pyrrolidin-2-one

(R)-5-(((tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-2-one (CAS 128899-30-9) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C11H23NO2Si and a molecular weight of 229.39100 g/mol. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 128899-30-9
Jingsj CID: J-1504989-5
Molecular Formula: C₁₁H₂₃NO₂Si
Molecular Weight: 229.39100 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Exact Mass	229.15000
PSA	38.33000
LogP	2.61560

Customs & Trade Information

HS Code	2933790090
Summary	2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of (R)-5-(((tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-2-one?

The CAS number of (R)-5-(((tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-2-one is 128899-30-9.

What are the molecular formula and molecular weight of (R)-5-(((tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-2-one?

(R)-5-(((tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-2-one has molecular formula C11H23NO2Si and molecular weight 229.39100 g/mol.

What are the upstream and downstream products of (R)-5-(((tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-2-one?

For (R)-5-(((tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-2-one, Upstream Products: (R)-(-)-5-(Hydroxymethyl)-2-pyrrolidinone, tert-Butyldimethylchlorosilane, D(-)-Glutamic acid; Downstream Products: tert-Butyl (2R)-2-(hydroxymethyl)-5-oxopyrrolidine-1-carboxylate.

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

Last updated: 8/21/2026

How to cite: Jingsj. "(R)-5-(((tert-butyldimethylsilyl)oxy)methyl)pyrrolidin-2-one (CAS 128899-30-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1504989-5 (accessed 2026-11-09).

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