N-Boc-4-oxo-L-proline tert-butyl ester, 97% 166410-05-5

About N-Boc-4-oxo-L-proline tert-butyl ester, 97%

N-Boc-4-oxo-L-proline tert-butyl ester is a five-membered N-heterocycle carrying the CAS registry number 166410-05-5 at a purity of ≥97%. The compound has the formula C14H23NO5, corresponding to a molecular weight of 285.34 g/mol. The IUPAC name is ditert-butyl (2S)-4-oxopyrrolidine-1,2-dicarboxylate. Alternative names: Boc-4-Oxo-Pro-OtBu and 1,2-Pyrr.

The material typically appears as a pale cream powder. Literature values give a melting point of 61-70 °C. Keep the container tightly sealed and store it in a cool, dry area. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

Typical applications include organic synthesis and API synthesis. Typical end-use sectors are pharmaceutical manufacturing and academic and industrial research.

Available in 250 mg, 1 g and 5 g packs, N-Boc-4-oxo-L-proline tert-butyl ester is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	N-Boc-4-oxo-L-proline tert-butyl ester, 97%
Catalogue No.	VQ-012615
CAS Number	166410-05-5
IUPAC name	ditert-butyl (2S)-4-oxopyrrolidine-1,2-dicarboxylate
Molecular formula	C₁₄H₂₃NO₅
Molecular weight	285.34 g/mol
Exact mass	285.1576
Purity / assay	≥97%
HSN code	29399900
InChIKey	MPNWQUWKRDADHK-JTQLQIEISA-N
SMILES	CC(C)(C)OC(=O)[C@@H]1CC(=O)CN1C(=O)OC(C)(C)C
PubChem CID	11346670

Physical properties
Physical form	Powder
Appearance	Pale cream powder
Melting point	61-70 °C
LogP (XLogP3)	1.6
H-bond donors / acceptors	0 / 5
TPSA	72.9 Å²
Synonyms	(S)-4-Oxopyrrolidine-1,2-dicarboxylic acid di-tert-butyl ester, (S)-Di-tert-butyl 4-oxopyrrolidine-1,2-dicarboxylate, 1,2-Bis(1,1-dimethylethyl) (2S)-4-oxo-1,2-pyrrolidinedicarboxylate, di-tert-butyl (S)-4-oxopyrrolidine-1,2-dicarboxylate, 1,2-Pyrrolidinedicarboxylic acid, 4-oxo-, 1,2-bis(1,1-dimethylethyl) ester, (2S)-, Boc-4-Oxo-Pro-OtBu, 1,2-Pyrr, 1-(tert-butyloxycarbonyl)-4-oxo-L-proline tert-butyl ester, N-Boc-4-oxo-L-proline tert-butyl ester, 97%, (S)-Di-tert-butyl4-oxopyrrolidine-1,2-dicarboxylate, Di-tert-butyl (2S)-4-oxopyrrolidine-1,2-dicarboxylate, N-t-BOC-4-Oxo-L-proline tert-butyl ester, AldrichCPR

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H317May cause an allergic skin reaction
H412Harmful to aquatic life with long lasting effects

Precautionary statements: P261, P272, P273, P280, P302 + P352, P321, P333 + P317, P362 + P364, 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 N-Boc-4-oxo-L-proline tert-butyl ester, 97%?

The CAS Registry Number of N-Boc-4-oxo-L-proline tert-butyl ester, 97% is 166410-05-5. It is also known as (S)-4-Oxopyrrolidine-1,2-dicarboxylic acid di-tert-butyl ester, (S)-Di-tert-butyl 4-oxopyrrolidine-1,2-dicarboxylate, 1,2-Bis(1,1-dimethylethyl) (2S)-4-oxo-1,2-pyrrolidinedicarboxylate.

What is the molecular formula and molecular weight of N-Boc-4-oxo-L-proline tert-butyl ester, 97%?

N-Boc-4-oxo-L-proline tert-butyl ester, 97% has the molecular formula C14H23NO5 and a molecular weight of 285.34 g/mol. Its IUPAC name is ditert-butyl (2S)-4-oxopyrrolidine-1,2-dicarboxylate.

Which grade and pack sizes of N-Boc-4-oxo-L-proline tert-butyl ester, 97% can I order?

We supply N-Boc-4-oxo-L-proline tert-butyl ester, 97% in (≥97%) grade, in 250 mg, 1 g, 5 g packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with N-Boc-4-oxo-L-proline tert-butyl ester, 97%?

Yes. Every lot of N-Boc-4-oxo-L-proline tert-butyl ester, 97% 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 N-Boc-4-oxo-L-proline tert-butyl ester, 97% be shipped internationally?

Yes. N-Boc-4-oxo-L-proline tert-butyl ester, 97% 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.